User`s manual

App - 5 App - 5
MELSEC-Q
APPENDIX
Appendix 2 Loop Tag Memory List
Appendix 2.1 PID control (SPID) 2-degree-of-freedom PID control (S2PID)
Sample PI control (SSPI)
Loop tag memory list
Data storage
Instruction used Offset Item Name Recommended range Unit
SPID
S2PID
SSPI
+0
1MODE
*1
Operation mode 0 to FFFF
H
-S/U S/U
2
3
ALM
*1
Alarm detection 0 to FFFF
H
-S/U S/U
4
INH
*1
Alarm detection inhibition 0 to FFFF
H
-S/U S/U
5
6
7
8
9
S. PHPL
10
11
PV Process value (RL to RH) SS
S. OUT1/S. DUTY
12
13
MV Manipulated value (-10 to 110) % S S
14
S. PID/S. 2PID/
S. SPI
15
SV Set value RL to RH
UU
S. PID/S. 2PID/
S. SPI
16
17
DV Deviation (-110 to 110) % S S
S. OUT1/S. DUTY
18
19
MH Output upper limit value -10 to 110 % U U
S. OUT1/S. DUTY
20
21
ML Output lower limit value -10 to 110 % U U
S. PHPL/S. PID/
S. 2PID/S. SPI
22
23
RH
Engineering value upper
limit
-999999 to 999999
UU
S. PHPL/S. PID/
S. 2PID/S. SPI
24
25
RL
Engineering value lower
limit
-999999 to 999999
UU
S. PHPL
26
27
PH
Upper limit alarm set
value
RL to RH
PL
PH
UU
S. PHPL
28
29
PL Lower limit alarm value
RL to RH
PL
PH
UU
S. PHPL
30
31
HH
Upper upper limit alarm
value
RL to RH
PH
HH
UU
S. PHPL
32
33
LL
Lower lower limit alarm
value
RL to RH
LL
PL
UU
34
35
36
37
S. IN
38
39
Filter coefficient 0 to 1 UU
S. PHPL
40
41
HS
Upper/lower limit alarm
hysteresis
0 to 999999 % U U
S. PHPL
42
43
CTIM
Change rate alarm check
time
0 to 999999 s U U
S. PHPL
44
45
DPL Change rate alarm value 0 to 100 % U U
S. PID/S. 2PID/
S. SPI
46
47
CT/ST
Control cycle/Operation
time
0 to 999999 s U (Set CT) U (Set ST)