Control Functions - GE VersaMax PLC User Manual

call
do io
pidind
pidisa ISA PID Algorithm
Temporary End of
end
commnt
svcreq
mcr
End Master Control
endmcr
jump
label
drumseq
Elements of an Application Program
For public disclosure

8.4.10 Control Functions

Causes a program execution to go to a specified subroutine block.
Call
Services a specified range of inputs or outputs immediately (all
inputs or outputs on a module will be serviced if any addresses on
Do I/O
that module are included in the function – partial I/O module
updates are not performed
Independent PID
Selects the noninteracting independent PID algorithm.
Algorithm
Selects the ISA PID algorithm.
The program executes from the first rung to the last rung or the
END instruction, whichever is encountered first. This instruction is
Logic
useful for debugging purposes.
A rung explanation.
Comment
Service Request A special PLC service function.
Starts a master control relay range. An MCR causes all rungs
Master Control
between the MCR and its subsequent ENDMCR to be executed
Relay
with no power flow. Up to 8 MCRs can be nested.
Ends a master control relay range.
Relay
Jump Jumps to a specified location indicated by a LABEL in the logic.
The target location of a JUMP instruction. Multiple Jump
Label
instructions can reference the same label.
(future) Operates like a mechanical drum sequencer, selecting a
Drum Sequencer 16-bit output pattern from an array of stored patterns, and sending
it to a set of outputs.
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