Mitsubishi Electric MELSEC iQ-R Series - Page 1280

1278
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
+14
+15
SPR Set value -999999 to 999999 Single-precision
real number
0.0 User
+16
+17
BIAS Bias -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
+50
+51
DR Variation rate
limit value
0 to 999999 Single-precision
real number
100.0 User
+52
+53
RMAX Ratio upper limit
value
-999999 to 999999 Single-precision
real number
100.0 User
+54
+55
RMIN Ratio lower limit
value
-999999 to 999999 Single-precision
real number
0.0 User
+56
+57
R
n
Ratio current
value
-999999 to 999999 Single-precision
real number
0.0 System
Operand: (d2)
Position 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.)
+98
+99
R
n-1
Last value
b15 b9b10 b1b2b3b4b5b6b7b8 b0
CMV CSV LCM LCA LCC MAN AUT CAS CMB CAB CCB
...
b15
b14
b0
...
SPA
© T
CT
<=32767