ProSoft Technology MVI56E-MCMR - Manual (Page 67)

MVI56E-MCMR ♦ ControlLogix Platform Configuring the MVI56E-MCMR Module
Modbus Communication Module with Reduced Data Block User Manual
ProSoft Technology, Inc. Page 67 of 225
May 13, 2014
Parameter Description
Enable = 1 The module will send the command every time it goes through the
command list.
Internal Address = 1010 Places the data read from the slave device into the module at
address 1010. Internal Address 1010 of the module memory will be
copied into the tag MCMR.DATA.R
EAD D ATA [10].
Reg Count = 10 Reads 10 consecutive registers from the slave device.
Node Address = 1 Issues the Modbus command to Modbus Slave Device Address 1.
Modbus Function =4 Issues Modbus Function Code 4 to Read Input Registers.
MB Address in Device =20 Function Code 4 MB Address in Device of 20 will read address 30021
Along with a count of 10, this command reads 30021 to 30030.