Understanding Allen-Bradley Protocols
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Topic: CM529 |
This topic describes the best use of Allen-Bradley Protocols with the C-more PLC. The links with each subject will help you understand setup procedures.
DF1 Full Duplex
Used for point-to-point serial connections. If you are using only one C-more panel and one PLC, this is the most economical method of connecting C-more to an Allen-Bradley PLC.
Allen-Bradley DF1 Full Duplex Tag-Based (Control/CompactLogix) Setup.
DF1 Half Duplex
This is an economical method for connecting one C-more panel to multiple PLC. Note that none of the Allen-Bradley PLC have RS-422 or RS-485 for their serial connection so an RS-232-to-RS-422/485 converter (such as the FA-ISOCON) is required for each PLC.
Allen-Bradley DF1 Half Duplex Tag-Base Control/CompactLogix) Setup
Generic EtherNet/IP Server
This driver is atypical in that the messaging is initiated by the PLC instead of C-more. The C-more panel is treated basically like a Remote I/O drop. It contains a block of Input Words and Output Words, and the PLC either reads or writes this Data back and forth. The PLC tags are not directly referenced as in the EtherNet/IP Client driver. This method is sometimes preferred by some customers for different applications.
Allen-Bradley Generic EtherNet/IP Setup
EtherNet/IP Client
This driver is the more typical method of reading and writing Data back and forth from the PLC. The C-more panel directly references the PLC tags and initiates the messages going back and forth. If your application involves using multiple C-more panels and/or multiple PLC, this is the best method for accomplishing this.
Allen-Bradley EtherNet/IP Client Tag-Based (Control/CompactLogix) Setup
Allen-Bradley MicroLogix 1100 & 1400 EtherNet/IP (Client) Protocol Setup
Allen-Bradley EtherNet/IP (Client) SLC5/05 Setup
