Mitsubishi Electric MELSEC iQ-R Series - Page 1197

11 PROCESS CONTROL INSTRUCTIONS
11.1 Overview
1195
11
For S.2PID (two-degree-of-freedom PID control), set the following operation constant items to specify tracking.
Loop selector tracking
Tracking processing is performed under the following conditions.
• The control mode is MAN, CMB, CMV, or LCM, and the tracking bit (TRK) is 1.
• The control mode is AUT, CAS, CAB, CCB, CSV, LCA, or LCC, and the tracking bit (TRK) is 1 and BB1 of the block bit (BB)
is 1.
Ex.
When the input value (E1) of the S.SEL instruction uses the manipulated value (MV) of the upper loop (Loop 0), the
manipulated value (MV) of the S.SEL instruction is tracked to the manipulated value (MV) of Loop 0. The S.SEL instruction
specifies tracking according to the following operation constant items.
Setting item Setting
Tracking bit (TRK) 1 (Tracking performed)
Set value pattern (SVPTN) Set value pattern 0 (Set value is upper loop MV.)
Set value used 0 (E2 is specified.)
Operation constant Bit position Stored value
(s2)+4 Tracking bit b0 0: Tracking not performed
1: Tracking performed
(s2)+5 Set value pattern b0 e1 0: E1
1: E2
b1 E1 0: Use
1: Not use
b2 E2 0: Use
1: Not use
b3 E1 0: E1 is the upper loop MV.
1: E1 is not the upper loop
MV.
b4 E2 0: E2 is the upper loop MV.
1: E2 is not the upper loop
MV.
S.IN S.PHPL S.2PID S.OUT1
S.IN S.PHPL S.2PID S.OUT1
S.SEL
E1
E2
Loop tag memory
Loop tag memory
(PV1)
(PV2)
Loop 0
Loop 1
Tracking
1010 0
1
(s2)+4
+5
b15 b0b1b2b3b4b5
...