STRING data over Modbus

XG5000 supports up to 31 characters in a STRING variable.

• Each ASCII character needs to be handled as a byte in Modbus communication.

• 32 bytes of Modbus data should be allocated for each STRING variable.

XG5000 Variable Declarations

Variable Kind	Variable	Type	Address
VAR	STRING_FROM_HMI	STRING	%MW1616
VAR	STRING_TO_HMI	STRING	%MD308

 

C-More Tag Database

Assign 32 characters to the tag Data Count.

Device Name	Tag Name	Data Type	Address	Data Count
DEV002	STRING_FROM_PLC	Ascii String	30017	32
DEV002	STRING_TO_PLC	Ascii String	40017	32

 

 

LP203-3