Eaton Logo

When using Modbus serial or Modbus TCP to operate and monitor a C445 Motor Management Relay, can I read scattered Modbus registers with a single read message?

Yes, there are 2 blocks of Modbus registers in the C445 that allow the user to determine the parameters that can be read with a single read message using one block and the other block will contain those parameters. Registers 3000 through 3031 are used to place the register numbers of parameters to be read back in a single contiguous block from registers 3032 – 3063. The size of each block is 32 registers. For a complete description of this feature refer to the C445 User manual, publication MN042003EN, Appendix D.