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User Manual
GFK-1503F
→→dint
8.4.10
Control Functions
call
do io
pidind
pidisa
end
commnt
svcreq
mcr
endmcr
jump
label
drumseq
Elements of an Application Program
Truncate to Double
Truncates to a 32-bit signed number. The range is -
Precision INT (from
2,147,483,648 to +2,147,483,647.
REAL)
Call
Causes a program execution to go to a specified subroutine block.
Do I/O
Services a specified range of inputs or outputs immediately (all
inputs or outputs on a module will be serviced if any addresses on
that module are included in the function – partial I/O module
updates are not performed
Independent
Selects the non-interacting independent PID algorithm.
PID Algorithm
ISA PID
Selects the ISA PID algorithm.
Algorithm
Temporary End
The program executes from the first rung to the last rung or the
of Logic
END instruction, whichever is encountered first. This instruction is
useful for debugging purposes.
Comment
A rung explanation.
Service
A special PLC service function.
Request
Master Control
Starts a master control relay range. An MCR causes all rungs
Relay
between the MCR and its subsequent ENDMCR to be executed with
no power flow. Up to 8 MCRs can be nested.
Ends a master control relay range.
End Master
Control Relay
Jump
Jumps to a specified location indicated by a LABEL in the logic.
Label
The target location of a JUMP instruction. Multiple Jump
instructions can reference the same label.
Drum
(future) Operates like a mechanical drum sequencer, selecting a
Sequencer
16- bit output pattern from an array of stored patterns, and sending
it to a set of outputs.
Chapter 8
Jan 2020
89
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