ProSoft Technology MVI56E-SIE - Manual (Page 103)

MVI56E-SIE ♦ ControlLogix Platform Ladder Logic
Client Communication Module User Manual
ProSoft Technology, Inc. Page 103 of 168
September 6, 2012
3 Ladder Logic
In This Chapter
 Controller Tags .................................................................................... 104
 User-Defined Data Types (UDTs) ....................................................... 106
 Using Controller Tags .......................................................................... 107
 Controller Tag Overview ...................................................................... 108
Ladder logic is required for managing communication between the MVI56E-SIE
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.