Ladder Logic - ProSoft Technology ControlLogix inRAx MVI56E-MNETR User Manual

MVI56E-MNETR ♦ ControlLogix Platform
Modbus TCP/IP Interface Module with Reduced Data Block
3

Ladder Logic

In This Chapter
MNETRMODULEDEF ........................................................................... 80
Modbus Message Data.......................................................................... 89
Ladder logic is required for managing communication between the MVI56E-
MNETR 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.
ProSoft Technology, Inc.
June 14, 2011
Ladder Logic
User Manual
Page 79 of 175