Reference MVI56E-MCM ♦ ControlLogix Platform
User Manual Modbus Communication Module
Page 180 of 209 ProSoft Technology, Inc.
Specialized use in conjunction with programming
commands. The Slave has accepted the request and is
processing it, but a long duration of time will be required to
do so. This response is returned to prevent a timeout error
from occurring in the Master. The Master can next issue a
poll program complete message to determine if processing
is completed.
Specialized use in conjunction with programming
commands. The Slave is engaged in processing a long-
duration program command. The Master should retransmit
the message later when the Slave is free.
6.9 Using the Optional Add-On Instruction
6.9.1 Before You Begin
Make sure that you have installed RSLogix 5000 version 16 (or later).
Download the Optional Add-On file
MVI56(E)MCM_Optional_AddOn_Rung_xxx.L5X from
www.prosoft-technology.com.
Save a copy in a folder in your PC.
6.9.2 Overview
The Optional Add-On Instruction Rung Import contains optional logic for MVI56E-
MCM applications to perform the following tasks.
Read/Write Ethernet Configuration
Allows the processor to read or write the module IP address, netmask and
gateway values.
Note: This is an optional feature. You can perform the same task through PCB (ProSoft
Configuration Builder). Even if your PC is in a different network group you can still access the
module through PCB by setting a temporary IP address.
Read/Write Module Clock Value
Allows the processor to read and write the module clock settings. The module
clock stores the last time that the Ethernet configuration was changed. The
date and time of the last Ethernet configuration change is displayed in the
scrolling LED during module power up.
Important: The Optional Add-On Instruction only supports the two features listed above. You must
use the sample ladder logic for all other features including backplane transfer of Modbus data.
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