Loop Selector Tracking - Mitsubishi Electric MELSEC-Q QnPHCPU Programming Manual

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.
Tracking bit (TRK)
Set value pattern (SVPTN)

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
Process value
(PV1)
Process value
(PV2)
Example) When the S.SEL instruction uses the input value E1 and E1 uses the upper loop
Operation constant
Tracking bit
Set value pattern
5 - 3
Setting item
Set value pattern
Set value Used
Loop tag memory
S.IN S.PHPL
Loop 0
Loop 1
S.IN S.PHPL
Loop tag memory
(loop 0) MV, the S.SEL instruction's MV is trucked to loop 0's MV. The setting
that conducts Tracking is shown below.
+4
S2
1
+5
1 (Tracking performed)
0 (Set value is upper loop MV.)
0 (E2 is used)
Manipulated
value (MV)
S.2PID S.OUT1
S.2PID S.OUT1
Manipulated
value (MV)
1
0: Tracking not performed.
0 1 0 0
1: Tracking performed.
Input value selection
Input value (E1) use
Input value (E2) use
Input value (E1) pattern
Input value (E2) pattern
MELSEC-Q
Setting
Tracking
E1
S.SEL
E2
0: E1 is selected.
1: E2 is selected.
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.
0: E2 is upper loop MV.
1: E2 is not upper loop MV.
5 - 3