ProSoft Technology MVI56E-MNETCR - Manual (Page 71)

MVI56E-MNETCR ♦ ControlLogix Platform Ladder Logic
Modbus TCP/IP Multi Client Enhanced Communications Module for Remote Chassis User Manual
ProSoft Technology, Inc. Page 71 of 159
June 14, 2011
3 Ladder Logic
In This Chapter
Module Data Object (MNETCRMODULEDEF) ...................................... 72
Ladder logic is required for managing communication between the MVI56E-
MNETCR module and the processor. The ladder logic handles tasks such as:
Module backplane data transfer
Special block handling
Status data receipt
Additionally, a power-up handler may be needed to initialize the module’s
database and may clear some processor fault conditions.
The sample Import Rung with Add-On Instruction is extensively commented to
provide information on the purpose and function of each user-defined data type
and controller tag. For most applications, the Import Rung with Add-On
Instruction will work without modification.