Issue
What Modbus function codes are supported by the Quantum CoPro port for use with Modbus TCP?


Product Line
Quantum CoPro


Resolution
Quantum CoPro FW 3.3 / Unity 5.0 supports the following Modbus Function Codes:

Source Block Code MB FC Notes
MBP_MSTR 2 3 Read data
MBP_MSTR 1 16 Write data (multiple)
MBP_MSTR 1 16 Write data (single)
MBP_MSTR 23 NA Write/Read - not supported on CoPro
READ_REG NA 3 Read register
WRITE_REG NA 16 Write register (multiple)
WRITE_REG NA 16 Write register (single)
CREAD_REG NA 3 Read register
CWRITE_REG NA 16 Write data (multiple)
CWRITE_REG NA 16 Write data (single)

IO scanner <Read> 3 Read Data Only
IO scanner <Write> 16 Write Data Only
IO scanner <Read/Write> 23 Read/Write Data