I/O Module Configuration

Overview

This topic describes the configuration of the types of Input and Output modules for your Productivity system:

• Configuring Discrete I/O Modules
• High Speed Output
• High Speed Input
• PS-AMC
• P1-02HSC
• P2-02HSC
• P1-04PWM
• P2-04PWM
• Analog I/O Modules
• Temperature Modules

Productivity Advanced Motion Control modules are also available for your Productivity system. The configuration of the PS-AMC modules is covered in the AMC Hardware Configuration topic.

Configuring Hardware Components

Each Module has various Configuration parameters that may differ from system to system. To view and edit these parameters, double-click the Module within the Hardware Configuration window as shown below.

Note: The Hardware Component dialogs automatically appear when you are manually configuring your Base Groups.

Configuring Discrete I/O Modules

When you double-click on any of the Discrete I/O Modules, the respective Module's Configuration window will open.  For example, if you double-click on the P3-08ND3S Module, the P3-08ND3S Configuration window shown below will open.  Details about Configuring the Discrete I/O Modules are discussed below.

1. Description: Provides the Description of the specific Module.
2. Stop program when this module is disconnected: Generates a critical error when an I/O Module is removed from the Base causing a Hardware mismatch and forcing the CPU out of RUN mode.
3. Allow program to run with this module disconnected: Generates a Non-critical Error allowing the system to continue to operate when an I/O Module is removed from the Base.
4. User Tagname: Each point on a DiscreteModule is assigned a default Tagname. Each User Tagname can be edited in this dialog, left with default settings, or can be edited later in the Tag Database.
5. Monitor: Displays the window shown below with options for adding tags to Data View.

6. Status Bits (below): Some Discrete Modules have Module Status Bits associated with them that may include Missing 24VDC or Blown Fuse indication as shown below.

Configuring High-Speed I/O Modules

When you double-click on any High-Speed Input/Output Module from the Hardware Configuration window, the respective Module's Configuration window will open.

P-Series High Speed Output

The following section discusses the configuration and options available with the High-Speed Output Module.

1. Module Setup: This tab provides the setup parameters of the selected HSO module. Each individual channel's setup parameters are found on their respective tab.
2. Module Name: Each HSO module can be given a unique name (maximum 16 characters) for easier reference within the hardware configuration, instructions and throughout the programming software. The default name consist of the part number of the module truncated by its position within the system (group.base.slot).
3. Stop program when this module is disconnected: Selected by default. Generates a critical error when an I/O Module is removed from the Base causing a Hardware mismatch and forcing the CPU out of RUN mode. Select Allow program to run with this module disconnected if Hot Swap functionality is desired.
4. Input Points: There are six general purpose Inputs available which can be used to trigger events in the Registration function, used for positive and negative limits or used for Homing. Tagnames need to be assigned to these Inputs in order to be monitored from within the ladder logic.

Note: The Input Points are not updated in STOP mode.

5. Output Points: There are four general purpose Outputs available which can be used in the Registration function. Tagnames need to be assigned to these Outputs in order to be monitored from within the ladder logic.

6. Registers: Enter a tag to view the count for each register within the Programmable Limit Switch (PLS) instruction (read-only).

7. Status Feedback: A tagname must be entered in the Module Error Code field in order to reference any current Errors in the module from within the ladder logic. The table below describes the Errors possible. The Module Ready field accepts boolean tags and is used to indicate that the module is installed, configured and ready for instructions. This option must be used in combination with the Hot Swap feature to ensure instructions will execute as intended.

Note: If an error message is present due to a fault, once the fault is corrected, a power cycle or a triggering of an SPOS instruction will clear the error.

Error Bit	Error	Description
1	Missing External Power	This module requires that external power be supplied in order to operate. If there is a loss of the supplied power, this bit will turn ON and all of the front panel fault LEDs will blink.
2	Overload/Short Circuit Output 1	Each of the module outputs has built-in ESCP (Electronic Short Circuit Protection). This bit indicates a fault has occurred with Output 1. If a move was in progress, the Move Status Bit 12“Aborted-IO Fault”will be set for that particular move instruction. See the specific move instruction topic for the error bits associated with it.
3	Overload/Short Circuit Output 2	Each of the module outputs has built-in ESCP (Electronic Short Circuit Protection). This bit indicates a fault has occurred with Output 2. If a move was in progress, the Move Status Bit 12“Aborted-IO Fault”will be set for that particular move instruction. See the specific move instruction topic for the error bits associated with it.
4	Overload/Short Circuit Output 3	Each of the module outputs has built-in ESCP (Electronic Short Circuit Protection). This bit indicates a fault has occurred with Output 3. If a move was in progress, the Move Status Bit 12“Aborted-IO Fault”will be set for that particular move instruction. See the specific move instruction topic for the error bits associated with it.
5	Overload/Short Circuit Output 4	Each of the module outputs has built-in ESCP (Electronic Short Circuit Protection). This bit indicates a fault has occurred with Output 4. If a move was in progress, the Move Status Bit 12“Aborted-IO Fault”will be set for that particular move instruction. See the specific move instruction topic for the error bits associated with it.
6	Overload/Short Circuit Output 5	Each of the module outputs has built-in ESCP (Electronic Short Circuit Protection). This bit indicates a fault has occurred with Output 5. If a move was in progress, the Move Status Bit 12“Aborted-IO Fault”will be set for that particular move instruction. See the specific move instruction topic for the error bits associated with it.
7	Overload/Short Circuit Output 6	Each of the module outputs has built-in ESCP (Electronic Short Circuit Protection). This bit indicates a fault has occurred with Output 6. If a move was in progress, the Move Status Bit 12“Aborted-IO Fault”will be set for that particular move instruction. See the specific move instruction topic for the error bits associated with it.
8	Firmware Image CRC Error	Module Firmware is faulted.

Parameter Configuration Table

Module Setup

Notes

Module Name

Module Name (Max. 16 characters)

Input Points

Enter tags to contain the status of the General Purpose Inputs

Output Points

Enter tags to contain the status of the General Purpose Outputs (Read Only)

Module Error Code

Enter tag to contain the Module Error Code word

Module Ready

Enter tag to contain the Module Ready bit

1. Channel 1 Setup: This tab provides the setup parameters for Channel 1. There are two pulse output channels on the HSO and each individual channel's setup parameters are found on their respective tab.
2. Channel Name: Each channel can be given a unique name (maximum 16 characters) for easier reference. The default name consist of the channel number (1 or 2) and the module's position within the system (group.base.slot).
3. Channel Scaling: There are several scaling options for user code convenience. Since there are many different types of applications that the module may be used in, the provided scaling feature may not work for every scenario. In this case, set the Channel Scaling to Pulse Count, the Time Unit to Seconds and choose a Position Datatype, then use scaling in the ladder code. See the Scaling help topic for more details on this function.

• Position Unit: Pulse: This option uses the raw Pulse per position unit selection.
• Position Unit: Standard: This option configures the numbers of pulses per unit. There are five pre-defined labels that can be selected: inch, foot, mm, degree and revolution. The pulses can also be specified in fractional increments (.1).
  Once the scaling factor has been configured, the ladder logic can specify the target values to the HSO in the units that make sense for the application. For example: If a scaling value of 10 was configured and the ladder logic specified a target value of 10, the HSO would physically output 100 pulses.
• Position Unit: Custom:This option also configures the number of pulses per unit but allows for a custom label to be entered. The pulses can also be specified in fractional increments (.1).
  Once the scaling factor has been configured, the ladder logic can specify the target values to the HSO in the units that make sense for the application. For example: If a scaling value of 10 was configured and the ladder logic specified a target value of 10, the HSO would physically output 100 pulses.
• Position Datatype: The position may be specified in terms of Integer or Float. Integer will provide a greater range but may be difficult to use when using the Scaling function. Conversely, Float will provide greater resolution in some cases but will greatly limit the range. The more resolution specified, the lower the range. It may be beneficial to scale the signal first then change the Position Datatype if needed to achieve the desired resolution and/or range. See the Understanding Maximum Position Cycle and Minimum Position Accuracy topic for more information.
• Time Unit: Standard: Choose the appropriate Time unit which will be used for this channel's time base. The three choices available are: second, minute and hour.
• Time Unit: Custom: A custom number of seconds can be configured in this field. The number of seconds can be entered in fractional increments (.1).

4. Channel Feedback: There are three status or feedback tags available for each channel. These tags provide information regarding the Position, Velocity and Status of the respective channel.

• Current Position Feedback: Insert a tag into this field in order to reference the channel’s current Pulse Count. The value will be represented in the scaled units specified from the Channel Scaling setup.
• Current Velocity Feedback: Insert a tag into this field in order to reference the channel’s current Velocity. The value will be represented in the scaled units specified from the Channel Scaling setup.
• Current Status: Insert a tag into this field in order to reference the current Status of the channel. A list of the possible Channel Status codes are listed below:

Status Bit	Status	Description
1	Px-HSO Only:Last Direction Backlash Positive	These bits indicate the last direction of travel. They are updated as soon as channel movement starts. If Backlash has been configured then these bits will not change state until after backlash has been “taken up” in the opposite direction.
2	Px-HSO Only:Last Direction Backlash Negative
3	Future	Future
4	Future	Future
5	Future	Future
6	Future	Future
7	Future	Future
8	Future	Future
9	Positive Limit Switch Tripped	These limit switches are configured and operate independently of each other. They are enabled individually allowing you to have just a positive, just a negative, or both limits. Each Limit Switch is only detected in its direction of travel. So an active Negative Limit will not prevent movement in the Positive Direction (and vice-versa). This allows a channel to “back off” of a Limit Switch in the opposite direction. But this also means that the Limit Switches will not protect from an axis traveling in the wrong direction. Note 1: If both Limit Switches are configured to the same Input then you will not be able to “back off” of the limit, manual interaction would be required, this type of setup is usually called “over-travel limit”. Note 2: The relevant instruction's Move Status Bit 10 “Aborted – Hit Limit” is also set at the same time.
10	Negative Limit Switch Tripped
11	Future	Future
12	Future	Future
13	Px-HSO Only:Positive Position Limit Tripped	These bits indicate when the channel's current position violates the Position Limit setup in the H/W Configuration. Position Limits allow the axis movement to be restricted without physical limit switches. The Position Limits are configured and also operate independently of each other. They are enabled individually allowing you to have just a positive, just a negative, or both limits. Note 1:The relevant instruction's Move Status Bit 10 “Aborted – Hit Limit” is also set at the same time. Note 2: These limits can be changed on the fly during a move. Note 3: Position Limits are ignored during HOME instructions since the Home position of the Channel has not been matched to a physical Axis position.
14	Px-HSO Only: Negative Position Limit Tripped
15	Registration Stop Tripped	When an instruction is configured for Registration and the Decel to a Stop option is selected, this bit will turn ON after the channel comes to a stop. Also the relevant instruction's Move Status Bit 8 “Stopped at Registration Target” will be set.
16	Module Error - See Module Error Code (above)	This bit indicates that an error exists in the Module Error Code, look there for further information.
Status Bits 17-32 are used only by the PS-AMCx Modules (not used by the legacy Px-HSO and PxHSI modules)
17	Info- Encoder is a Master	The encoder is an active Master of a drivetrain
18	Info- Axis is a Master	This axis ( not the encoder ) is an active Master of a drivetrain
19	Info- Axis is a Slave	This axis is an active Slave in a drivetrain
20	Info- Axis is Enabled	When configured with “Axis requires Enable”, this is HI when AEN is active.
21	Info- Position Deviation Exceeded	If configured, this will be HI if the difference between the Encoder position and the commanded position is greater than the configured deviation window.
22	Info- Capture Input Previously Defined	MREG Only: The define position capture input/edge has already been defined for capture.
23	Future	Future
24	Aborted- Drive Not Ready	When configured with “Axis Uses Drive Ready”, the target axis is not providing a ready state signal on IN1- Drv Rdy
25	Aborted- Axis at Limit At Start	Axis is on the limit sensor at the start of a move in that direction
26	Aborted- Axis Not Enabled	When configured with “Axis Requires Enable”, this is HI when the AEN instruction is not active and a move on this axis is trying to start or during the move
27	Aborted- Position Deviation Stop	When configured, the axis was stopped due to the difference between the Encoder position and the commanded being greater than the configured deviation window.
28	Aborted- Axis is a Drivetrain Slave	Axis cannot be used by another instruction because it is an active Slave to another Master axis.
29	Aborted- Axis is Linear	Axis is configured as a Linear axis when it is required to be Rotary Axis
30	Aborted- Slave Exceeded Maximum Velocity	Axis is an active Slave and was commanded to go faster than maximum allowable configured velocity of the axis. This usually is because the gear ratio is too high

5. Channel Output Configuration: Each channel's output can be configured with one of three profiles. Pulse/Direction, Step Up/Step Down and Quadrature selections are provided to determine the output behavior.

• Pulse/Direction: This selection configures the module to generate the Pulse Train on Output A of the channel and the Direction is established on Output B of the channel. When the logic tells the module to change direction, Output B will toggle from low to high and vice versa. The Direction Setup Time field specifies how long the direction signal should be established before the pulse train starts. The range is from 2 microseconds to 100 milliseconds. If the module is currently sending a pulse train and a direction change has been issued, the module will freeze the pulse outputs for the time period specified.

• Step Up/Step Down: When this option is selected, the Pulse Train is generated on Output A when a Positive direction has been specified and on Output B when a Negative direction has been specified.

• Quadrature: When this option is selected, the Pulse Train output is generated on Output A and Output B, offset by a 1/2 cycle. Direction changes from the logic cause the offset to change from one output to the other. There are also Direction Polarity options that allow the polarity to be changed logically.

• Direction Polarity: The Direction Polarity setting determines the initial sequence of the Pulse offsets or Direction Line level. Refer to the Pulse Train Output Configuration diagrams above to see how this setting affects the initial Pulse output sequence.

6. Backlash Compensation: When the direction changes, the module will output the number of pulses (at pins 1A & 1B) specified. The Current Position Feedback will not be updated with these pulses. The output will pulse at the rate specified in the Amount and Velocity fields.
7. Output Limits: The channel output can be limited in the following ways:

• Starting Velocity (Pulses/sec): The velocity to start at when accelerating to higher target velocities. This is typically set to the maximum rate the motor can instantaneously achieve from a stopped state. The system must be able to withstand the jerk created by this immediate velocity change. Using this feature can reduce acceleration/deceleration times, and therefore reduce process cycle times. For target velocities below the Starting Velocity, there is no acceleration/deceleration, and the profile will start and stop at the target rate without ramping.
• Maximum Velocity (Pulses/sec): This is the maximum Pulse rate that the module will output. The On Error selections specify how the module should behave when the maximum rate is exceeded. The module can be configured to maintain the maximum rate or to Stop the move if a pulse rate higher than the maximum is specified by the logic.
• Maximum Accel Rate (Pulses/sec²): This is the maximum Acceleration rate that the module will output. The On Error selections specify how the module should behave when the maximum rate is exceeded. The module can be configured to maintain the maximum rate or to Stop the move if an acceleration rate higher than the maximum is specified by the logic.
• Maximum Decel Rate (Pulses/sec²): This is the maximum Deceleration rate that the module will output. The On Error selections specify how the module should behave when the maximum rate is exceeded. The module can be configured to maintain the maximum rate or to Stop the move if a deceleration rate higher than the maximum is specified by the logic.
• Rotary Mode - Rollover Position: If selected, when the count reaches the specified rollover position, the next positive pulse will reset the count to 0. Also, if the count is at 0, the next negative pulse will reset the count (roll under) to the specified rollover position. The value is specified in user units but the final scaled value must be within 1 and 2,147,483,647 whole counts. If the final scaled roll over position value is not a multiple of whole pulses, the fractional pulse amount will be ignored. When this feature is used, the count will always be a positive number between 0 and the rollover position.

8. Physical Limits: The channel output can also be limited with the use of Limit Switch Inputs.

• Positive Limit Switch Input: This option will stop the module pulse output if the specified Limit Switch becomes true when encountered in the Positive direction. An error will be indicated in the Module Error Code tag when this occurs. Motion in the negative direction is permitted in this state to allow for movement away from the limit switch unless the same switch is used for both positive and negative limits.
• Negative Limit Switch Input: This option will stop the module pulse output if the specified Limit Switch becomes true when encountered in the Negative direction. An error will be indicated in the Module Error Code tag when this occurs. Motion in the positive direction is permitted in this state to allow for movement away from the limit switch unless the same switch is used for both positive and negative limits.

9. Position Limits: These limits are Virtual limit switches imposed on the module's output.

• Enable Positive Position Limit at: This option will stop the module pulse output (unless performing a Homing routine) if the module reaches the count specified (constant or Tag value) while traveling in the Positive direction. An error will be indicated in the Status Bit specified when this occurs. As with the hardware switch limits, movement is allowed in the negative direction in order to move away from the limit switch. The "On the fly" symbol indicates that this value can be changed while the instruction is running.
• Enable Negative Position Limit at: This option will stop the module pulse output (unless performing a Homing routine) if the module reaches the count specified (constant or Tag value) while traveling in the Negative direction. An error will be indicated in the Status Bit specified when this occurs. As with the hardware switch limits, movement is allowed in the positive direction in order to move away from the limit switch. The "On the fly" symbol indicates that this value can be changed while the instruction is running.

Parameter Configuration Table

Module Setup

Notes

Channel Name

Channel Name (Max. 16 characters)

Scaling

Radio Buttons and Constants

Feedback: Current Position Feedback

Enter tag to contain the Current Position

Feedback: Current Velocity Feedback

Enter tag to contain the Current Velocity

Feedback: Current Status

Enter tag to contain the Current Status

Output Configuration

Radio Buttons and Constants

Backlash Compensation

Radio Buttons and Constants

Output Limits

Radio Buttons and Constants

Physical Limits

Radio Buttons

Position Limits (Value)

Enter tags which contain these limit values

Position Limits (Status)

Enter tags to contain the limit status bits

P-Series High Speed Input

The following section discusses the configuration and options available with the High-Speed Input Module.

1. Module Setup: This tab provides the setup parameters of the selected HSI module. Each individual channel's setup parameters are found on their respective tab.
2. Module Name: Each HSI module can be given a unique name (maximum 16 characters) for easier reference within the hardware configuration, instructions and throughout the programming software. The default name consist of the part number of the module truncated by its position within the system (group.base.slot).
3. Stop program when this module is disconnected: Selected by default. Generates a critical error when an I/O Module is removed from the Base causing a Hardware mismatch and forcing the CPU out of RUN mode. Select Allow program to run wit this module disconnected if Hot Swap functionality is desired.

4. Input Points: There are two general purpose Inputs available which can be used to trigger events in the Registration instruction or used with the Inhibit Count on Input option of the module’s channel I/O configuration. Tagnames need to be assigned to these Inputs in order to be referenced from within the ladder logic. By default, inputs 1-6 are used for channel inputs but internal tags may be assigned to each point for the purpose of monitoring from within the ladder code.

Note: The Input Points are not updated in STOP mode.

5. Output Points: There are four general purpose Outputs available that can be used in the Registration instruction. Tag names need to be assigned to these Outputs in order to be monitored from within the ladder logic.

6. Registers: Enter a tag to view the count for each register within the Programmable Limit Switch (PLS) instruction (read-only).

7. Status Feedback: A tagname must be entered in the Module Error Code field in order to reference any current Errors in the module from within the ladder logic. The table below describes the Errors possible. The Module Ready field accepts boolean tags and is used to indicate that the module is installed, configured and ready for instructions. This option must be used in combination with the Hot Swap feature to ensure instructions will execute as intended.

Note: If an error message is present due to a fault, once the fault is corrected, a power cycle or a triggering of an SPOS instruction will clear the error.

1. Channel 1 Setup: This tab provides the setup parameters for Channel 1. There are two high-speed input channels on the HSI and each individual channel's setup parameters are found on their respective tab.
2. Channel ID Setup: Each channel can be given a unique name (maximum 16 characters) for easier reference. The default name consist of the channel number (1 or 2) and the module's position within the system (group.base.slot).
3. Channel Scaling: There are several scaling options for user code convenience. Since there are many different types of applications that the module may be used in, the provided scaling feature may not work for every scenario. In this case, set the Channel Scaling to Pulse Count and the Time Unit to Seconds, then use scaling in the ladder code. See the Scaling help topic for more details on this function.

• Position Unit: Pulse: This option uses the raw Pulse per unit selection.
• Position Unit: Standard: This option configures the numbers of pulses per unit. There are five pre-defined labels that can be selected: inch, foot, mm, degree and revolution. The pulses can also be specified in fractional increments (.1).
  
• Position Unit: Custom: This option also configures the number of pulses per unit but allows for a custom label to be entered. The pulses can also be specified in fractional increments (.1).
• Position Datatype: The position may be specified in terms of Integer or Float. Integer will provide a greater range but may be difficult to use when using the Scaling function. Conversely, Float will provide greater resolution in some cases but will greatly limit the range. The more resolution specified, the lower the range. See the Understanding Maximum Position Cycle and Minimum Position Accuracy topic for more information.
• Time Unit: Standard: Choose the appropriate Time unit which will be used for this channel's time base. The three choices available are: second, minute and hour.
• Time Unit: Custom: A custom number of seconds can be configured in this field. The number of seconds can be entered in fractional increments (.1).

4. Channel Feedback: There are three status or feedback tags available for each channel. These tags provide information regarding the Position, Velocity and Status of the respective channel.

Note: The Channel Feedback tags are not updated in STOP mode.

• Current Position Feedback: Insert a tag into this field in order to reference the channel’s current High-Speed Count. The value will be represented in the scaled units specified from the Channel Scaling setup.
• Current Velocity Feedback: Insert a tag into this field in order to reference the channel’s current Velocity. The value will be represented in the scaled units specified from the Channel Scaling setup.

• Velocity Estimator Mode: This selection is used in determining how the Current Velocity will be calculated.

• Fast Frequency (pulses/time): This mode requires the user to select a sample period specific to their process. A shorter sample period will have less resolution. Recommended for velocities of 1khz and above. Calculations are done based on the number of events that occur within the sample period. Fast Frequency is the most accurate mode when the sample period is long. The update rate of the velocity calculations for this mode is directly proportional to the sample period.

Velocity _{Fast Freq} = # of Pulses / Sample Period

(Note: The Sample Period must be between 1 and 0.001 second.)

Example:

• Slow Frequency (time/pulse): Slow Frequency at low velocities (under 1khz) will provide a more accurate and faster update rate than Fast Frequency. Calculations are based on the amount of time that passes between two pulses. As frequency increases, Slow Frequency loses accuracy as the resolution between pulses decreases.

Velocity _{Slow Freq} = 1 / Time between Pulses

Example:

• Autosense: Autosense combines the features of Slow and Fast Frequency Modes to provide a velocity calculation. Autosense uses the velocity from Slow Frequency to calculate a sample period to be used in Fast Frequency calculation. This provides rolling adjustment through all frequency ranges. This mode works in all ranges, so it is the easiest to implement, but sacrifices accuracy due to the combined limitations of Slow and Fast Frequency Modes.

Velocity _Autosense = # of Pulses / Autosense Sample Period




Where: Autosense Sample Period = (1 / Velocity _{Slow Freq}) x 100

Note: Autosense Sample Period max / min values are 1 and 0.001 second respectively. The initial sample period will be 2 seconds and then dynamically adjust based on the input frequency.

Example:

• Sample Period: Used in conjunction with Fast Frequency Mode. Sets the period of time that the pulses will be sampled in order to determine the velocity rate.

• Channel Status: Insert a tag into this field in order to reference the current Status of the channel. A list of the possible Channel Status codes are listed below:

Status Bit	Status
1	Alert – Current Position Out of Range of New Cycle” . If in Rotary Mode, if the rollover to set to a position that is less than the current position. When this occurs, the old (currently running) rollover position will be active until the condition is corrected by either hanging the rollover value to be greater than the current position OR change the current position to be less than the proposed new rollover position.
2	Future
3	Future
4	Future
5	Future
6	Inhibited - Reset Tag out of range1 This occurs when the tag or constant value used to store the position that will be set when the Set Position tag becomes true and has value that is outside of the Rollover Position when Rotary Mode is enabled. Note: The channel will be inhibited at all times that the value of the tag or constant is outside of the rollover range AND the Set Tag (Boolean) is TRUE . To clear this condition, change the position value to be within the rollover range or disable the Use Tag to Set Position feature.
7	Inhibited - Z Reset out of range1 This occurs when the tag or constant value used to store the position that will be set when the Z input point is triggered has a value that is outside of the Rollover Position when Rotary Mode is enabled. Note: The channel will be inhibited at all times that the value of the tag or constant is outside of the rollover range regardless if the input is triggered or not. To clear this condition, change the position value to be within the rollover range or disable the Z Reset feature.
8	Inhibited - Rotary Rollover out of range1 This occurs when Rotary Mode is enabled AND the Rollover position is <= 0 OR is outside the Channel position range (i.e. larger than 8.3M when float scaling is selected). To clear this condition, change the rollover position value to greater than 0 AND be within the channel position range.
9	Alert - Position Rolled Over2
10	Alert - Position Rolled Under2
11	Future
12	Future
13	Future
14	Future
15	Future
16	Module Error - See Module Error Code (above)
Note 1: These can only occur when in Rotary Mode, if not in Rotary Mode then any value is valid. Note 2: These report the occurrence of a Roll Over and/or Roll Under. They will remain set for 3 scans and then clear. This makes it possible to detect multiple rollover and/or rollunder events using ladder code.

5. Channel Input Mode Configuration: Each channel's input can be configured with one of three profiles. Pulse/Direction, Quadrature X1 and Quadrature X4 selections are provided to determine the input behavior.

• Pulse/Direction: This selection configures the module to receive the Pulse Train on Input A of the channel and to read the Direction on Input B of the channel. When the signal on Input B is low, the module will count up when receiving pulses on Input A. Conversely, when the signal on Input B is high, the module will count down when receiving pulses on Input A.

• Quadrature X1: With this selection, the channel count will depend on which input is leading and which is trailing. If the Direction Polarity is set to Increasing Counts = Positive Direction and Input A is leading Input B by a 1/2 pulse, then the count will increase by one with every rising edge of the pulse received on Input A.

• Quadrature X4: As with the Quadrature X1 setting, the channel count is dependent upon which input is leading and which is trailing. With the Quadrature X4 selection however, the counts will increment on each rising and falling edge of both input pulse trains.

• Direction Polarity: This selection determines the direction polarity of the incoming signals.
1. Increasing Counts = Positive Direction: With Pulse/Direction mode, if the signal on Input B is low, pulses on Input A will generate an increasing count. When the signal on Input B is high, pulses on Input A will generate a decreasing count.

   With Quadrature mode, if the signal on Input A leads the signal on Input B, the count will increase. If the signal on Input B leads the signal on Input A the count will decrease.

2. Increasing Counts = Negative Direction: With Pulse/Direction mode, if the signal on Input B is low, pulses on Input A will generate a decreasing count. When the signal on Input B is high, pulses on Input A will generate an increasing count.

   With Quadrature mode, if the signal on Input A leads the signal on Input B, the count will decrease. If the signal on Input B leads the signal on Input A the count will increase.

• Inhibit Count on Input: Enabling this selection allows the user to specify an input that will be used to inhibit the count. The count will be inhibited when this specific input is in its active state. Valid inputs for this feature are: 1Z, 2Z, as well as, General Purpose (GP) Inputs 3 and 4.

• Use Z-Input Reset Count to: Enabling this feature will cause the count to reset to the specified count value when the Z Input for the channel goes to the active state. This value is specified in user units but the final scaled value must be within -2,147,483,647 and 2,147,483,647 whole counts. If the final scaled reset count value is not a multiple of whole pulses, the fractional pulse amount will be ignored.

• Use Tag... to Reset Count to: When the specified tag equals 1, the count for the channel will be reset to the specified count value. This value is specified in user units but the final scaled value must be within -2,147,483,647 and 2,147,483,647 whole counts. If the final scaled reset count value is not a multiple of whole pulses, the fractional pulse amount will be ignored.

6. Input Count Limits: This option allows a rollover limit to be placed on the input count if the input is tied to a Rotary Encoder. Do not select this option if using a Linear Encoder.

• Rotary Encoder - Rollover Position: When the count reaches the specified rollover position, the next positive pulse will reset the count to 0. When the count is at 0, the next negative pulse will reset the count (roll under) to the specified rollover position. The value is specified in user units but the final scaled value must be within 1 and 2,147,483,647 whole counts. If the final scaled roll over position value is not a multiple of whole pulses, the fractional pulse amount will be ignored. When this feature is used, the count will always be a positive number between 0 and your rollover number.

Parameter Configuration Table

Analog I/O Modules

When you double-click on any of the Analog I/O Modules, the respective Module's Configuration window will open.  For example, if you double-click on the P3-08AD Module, the P3-08AD Configuration window shown below will open.  Details about Configuring the Analog I/O Modules are discussed below.

1. Description: Provides the Description of the specific Module.
2. Stop program when this module is diconnected: Generates a critical error when an I/O Module is removed from the Base causing a Hardware mismatch and forcing the CPU out of RUN mode.
3. Allow program to run with this module disconnected: Generates a Non-critical Error allowing the system to continue to operate when an I/O Module is removed from the Base.
4. User Tagname: Each point on an AnalogModule is assigned a default Tagname.  Each User Tagname can be edited in this dialog, left with default settings, or can be edited later in the Tag Database.
5. Ch. Select,  All: Allows the user to Select individual Channels or All Channels.
6. Range: Some Analog and Temperature Modules support multiple Ranges for the Input or Output Signal Types. The Range column allows individual selection of Signal Type for each Channel.

Note: P Series RTD Modules must have All Channels configured to the same Range.

Note: The P3-04ADS does not allow for Signal Range selection in the software configuration.  Signal Type is determined when wiring the field device.

7. Module Status Bits: Some Analog Modules have Module Status Bits associated with them that may include: Module Failed, Missing 24VDC, Under Range, Over Range and Module Not Ready.
8. Monitor: Displays the window shown below with options for adding tags to Data View.

Temperature Modules

For all P Series temperature analog modules (NTC, RTD,and THM) there is a user selectable Burnout Detection setting that can be set to either Low Side Burnout Detection or High Side Burnout Detection. This setting determines the value that will be loaded into the channel's tag name when a sensor for that specific channel detects a failure or becomes disconnected.

Values that get loaded depend on what setting is selected:

• Low Side Burnout = 0
• High Side Burnout = 65535

Default Tag Names

1. Default Tag Names are automatically assigned as hardware is added. The Tag Names are easily customized here, or can be changed later in the Tag Database. The following applies to all windows that may be accessed through the Hardware Configuration tool. Example: all I/O and CPU properties windows, where Tag Names are displayed and Module ranges selected.
2. Default Tag Names are assigned when hardware is added to your project. Tag Names for I/O modules generally follow the format AAAAA-B.C.D.E, where:
3. AAAAA is the Category of the data, and may include the data type:

• Discrete I/O points:

DI = Discrete Input Point

DO = Discrete Output Point

• Boolean data items other than I/O points

MST = Module Status (Examples: Blown fuse or out of range error bits)

• Analog points. These use five digits. The first two digits designate the type of point and the last three describe the data type used.

--> AIxxx = Analog Input Point

--> AOxxx = Analog Output Point

--> xxF32 = Floating Point 32 Bit data type

--> xxS32 = Signed 32 Bit data type




B is the Base Group number. The LocalBase Group with the CPU is Group0.

C is the Base number.  The Base with the CPU or P3-RS/P3-RX is Base1.

D is the Slot number.  The Slot to the right of the CPU is Slot1.

E is the Item number.

• If the Tag Name is for an I/O module, this digit will be the point number.
• If the Tag Name is for a Status indication, this digit will differentiate them.  
  Example:P3-16TR has two fuses (one on each common) and a blown fuse indicator bit for each. Their default Tag Names are MST-x.x.x.1 and MST-x.x.x.2.  MST-x.x.x.1 is the blown fuse indicator for the fuse on the common of channels 1 through 8.

Note: The P3-530 and P1-540 CPU only supports local I/O.

User Tag Name Rules

User Tag Names are created by Users in the Tag Database. The following rules apply to Tag Names created by Users:

• Length can be from 1 to 32 Characters.
• Must have at least one Non-numeric Character, (a single decimal point or a leading dash are considered Numeric Characters).
• Cannot have quotation marks as first or last Character.
• Cannot contain parenthesis.
• Cannot start with a default I/O Tag prefix, such as MST (the default prefix for a Module Status bit).
• Cannot start with a System ID prefix, such as AR2C (the default prefix for a Boolean 2-dimensionalArray)