User`s manual

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MELSEC-Q
5 EXECUTION CONDITION SWITCHING AND FUNCTIONS
(2) Make the following settings to perform tracking.
(Tracking is performed when the operation mode is switched to other than CAS, CSV or CCB.)
For 2-degree-of-freedom PID (S.2PID), set the following operation constant items to specify
tracking.
Setting item Setting
Tracking bit (TRK) 1 (Tracking performed)
Set value pattern 0 (Set value is upper loop MV.)
Set value pattern (SVPTN)
Set value Used 0 (E2 is used)
5.2.3 Loop selector tracking
Tracking is performed under the following conditions.
• The operation mode is any of MAN, CMB, CMV and LCM and the tracking bit (TRK) is 1
• When the operation mode is any of AUT, CAS, CAB, CCB, CSV, LCA and LCC
The tracking bit (TRK) is 1 and BB1 of BB is 1
S.IN S.PHPL S.2PID S.OUT1
Process value
(PV1)
S.IN S.PHPL S.2PID S.OUT1
Process value
(PV2)
Loop tag memory
Manipulated
value (MV)
Loop tag memory
Manipulated
value (MV)
Loop 0
Loop 1
S.SEL
E1
E2
Tracking
Example) When the S.SEL instruction uses the input value E1 and E1 uses the upper loop
(loop 0) MV, the S.SEL instruction's MV is trucked to loop 0's MV. The setting
that conducts Tracking is shown below.
Set value pattern
10
10 0
Tracking bit
1
0: Tracking not performed.
Input value selection
Operation constant
S2
+4
+5
0: E1 is selected.
1: E2 is selected.
Input value (E1) use
Input value (E2) use
Input value (E1) pattern
Input value (E2) pattern
0: E2 is upper loop MV.
1: E2 is not upper loop MV.
0: E1 is used.
1: E1 is not used.
0: E2 is used.
1: E2 is not used.
0: E1 is upper loop MV.
1: E1 is not upper loop MV.
1: Tracking performed.