MVI56E-MNETCR ♦ ControlLogix Platform
Ladder Logic
Modbus TCP/IP Multi-Client Enhanced Communications Module for Remote Chassis
User Manual
ProSoft Technology, Inc.
Page 75 of 161
3
Ladder Logic
In This Chapter
Controller Tags ...................................................................................... 76
User-Defined Data Types (UDTs) ......................................................... 77
Using Controller Tags ............................................................................ 78
Controller Tag Overview ........................................................................ 79
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-u
p 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.
Summary of Contents for MVI56E-MNETCR
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