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11 PROCESS CONTROL INSTRUCTIONS
11.3 Control Operation Instructions
■Loop tag memory
The loop tag memory occupies 96 words from the specified start device.
■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)
Position Symbol Name Recommended range Data type Standard
value
Set by
+1 MODE Control mode 0 to FFFFH 16-bit unsigned
binary
8H User/
system
+3 ALM Alarm detection 0 to FFFFH
SPA
0: Loop RUN
1: Loop STOP
16-bit unsigned
binary
4000H User/
system
+4 INH Disable alarm
detection
0 to FFFFH
TRKF
0: Tracking not set
1: Tracking set
16-bit unsigned
binary
4000H User/
system
+12
+13
MV Manipulated
value
-10 to 110 [%] Single-precision
real number
0.0 User/
system
+14
+15
SV Set value RL to RH Single-precision
real number
0.0 User
+16
+17
DV Deviation -110 to 110 [%] Single-precision
real number
0.0 System
+18
+19
HS0 Hysteresis 0 0 to 999999 Single-precision
real number
0.0 User
+20
+21
HS1 Hysteresis 1 0 to 999999 Single-precision
real number
0.0 User
+22
+23
RH Engineering
value upper limit
-999999 to 999999 Single-precision
real number
100.0 User
+24
+25
RL Engineering
value lower limit
-999999 to 999999 Single-precision
real number
0.0 User
+46
+47
CT Control cycle 0 to 999999 [s]
Set a value within the following range.
Single-precision
real number
1.0 User
Operand: (d2)
Device Symbol Name Recommended range Data type Standard
value
Set by
+96 Control cycle
counter
initialization
completion flag
System
+97 Control cycle
counter (The
value is rounded
off to the nearest
whole number.)
b15 b9b10 b1b2b3b4b5b6b7b8 b0
CMV
CSV
LCM
LCA
LCC
MAN
AUT
CAS
CMB
CAB
CCB
...
b15
b14
b0
...
SPA
©
T
CT
<=32767