1. EL C Co ncep ts
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1.5.10 MPS / MRD / MPP (Branch instructions)
These instructions provide a method to create multiplexed output branches based on the current
result stored by the MPS instruction.
Branch
instruction
Branch
Symbol
Description
MPS
┬
Start of branches. Stores the current result of the
program evaluation. Max. 8 MPS-MPP pairs can
be applied
MRD
├
Reads the stored current result from the
previous MPS
MPP
└
End of branches. Pops (reads then resets) the
stored result in previous MPS
Note: When compiling ladder programs with ELCSoft, MPS, MRD and MPP could be automatically
added to the compiled results in instruction format. However, sometimes the branch instructions
are ignored by ELCSoft if not necessary. Users programming in instruction format can enter branch
instructions as required.
Connection points of MPS, MRD and MPP:
MPS
MRD
MPP
MPP
MPS
Summary of Contents for ELC-PB
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