Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1328

■Loop tag memory
The loop tag memory occupies 96 words from the specified start device.
Operand: (d2)
Position Symbol
+1 MODE
+3 ALM
+4 INH
+12 MV
+13
+14 SV
+15
+16 DV
+17
+18 HS0
+19
+20 HS1
+21
+22 RH
+23
+24 RL
+25
+46 CT
+47
■Loop tag past value memory
The system uses this area as a work area.
To start the control from the initial status, clear data by using a sequence program.
The loop tag past value memory occupies 32 words after the loop tag memory.
Operand: (d2)
Device Symbol

+96
+97
11 PROCESS CONTROL INSTRUCTIONS
1326
11.3 Control Operation Instructions
Name Recommended range
Control mode 0 to FFFFH
...
b15
Alarm detection 0 to FFFFH
b15b14
SPA
0: Loop RUN
1: Loop STOP
Disable alarm 0 to FFFFH
detection
...
b15 b13
TRKF
0: Tracking not set
1: Tracking set
Manipulated -10 to 110 [%]
value
Set value RL to RH
Deviation -110 to 110 [%]
Hysteresis 0 0 to 999999
Hysteresis 1 0 to 999999
Engineering -999999 to 999999
value upper limit
Engineering -999999 to 999999
value lower limit
Control cycle 0 to 999999 [s]
Set a value within the following range.
CT
<=32767
© T
Name Recommended range

Control cycle
counter
initialization
completion flag
Control cycle
counter (The
value is rounded
off to the nearest
whole number.)
b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
...
b0
...
b0
Data type Standard Set by
value
16-bit unsigned 8H User/
binary system
16-bit unsigned 4000H User/
binary system
16-bit unsigned 4000H User/
binary system
Single-precision 0.0 User/
real number system
Single-precision 0.0 User
real number
Single-precision 0.0 System
real number
Single-precision 0.0 User
real number
Single-precision 0.0 User
real number
Single-precision 100.0 User
real number
Single-precision 0.0 User
real number
Single-precision 1.0 User
real number
Data type Standard Set by
value
 
System