Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 311

Processing details
■PGS operation
This function block outputs predetermined values as time proceeds.
There are the following three operation types: hold type, return type, and cyclic type.
Operation type
Hold
Return
Cyclic
When the stop alarm (SPA) of the alarm (ALM) is FALSE, this function block performs the following processing. (loop run
processing).
MV
MV5, MV6
MV3, MV4
MV1, MV2
MVn-1, MVn
SV1 SV2 SV3 SV4
SV2
SV3
SV4
SV (elapsed time) is in units of seconds.
Type
Control mode
MVpgs calculation
*1
Elapsed time > SVn
*1 The following figure shows the result of when SV1 is longer than 0 second.
MV
MV1
SV1
SV
SV1
Description
Outputs data while holding the value of setting time (SVn).
Sets the set value (SV) to 0 and outputs the last value of the manipulated value (MV).
Processes based on the setting time 1 (SV1) to setting time n (SVn) and then restarts processing from setting
time 1 (SV1).
SVn-1
SVn (SVn≤SV16)
Elapsed time < SV1
SVi - 1  Elapsed time < SVi
Control mode transition
SV (elapsed time)
MV
Restart
SV (Elapsed Time)
SV (elapsed time)
SVn-1 SVn
Hold Return
AUT AUT
MV1
MV -MV
i i-1
×(Elapsed time -SV )+MV
i-1
SV -SV
i i-1
MANUAL MANUAL
Last value (SVn) 0
Last value (MVn) Last value (MVn)
MAN  AUT operation MAN  AUT operation
after setting SV
(elapsed time)
10 LOOP CONTROL OPERATION
10.24 Program Setter (M+P_PGS)
Cyclic
CAS, CSV
i-1
No transition
0
MV1
Automatic restart
10
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