Mitsubishi MELSEC-Q series Programming Manual page 179

Specified position Symbol
INH
+4
D2
+12
MV
+13
+14
SV
+15
Loop tag
memory
+16
DV
*2
+17
+18
HS0
+19
+22
RH
+23
+24
RL
+25
+46
CT
+47
Loop tag
+96
past value
––
*2
memory
+97
*3
Set value
+0
S3
E2
*4
+1
*1 The data of the item(s) where the values within the recommended range are given in the parentheses are stored by the
system. Users cannot set the data.
*2 The loop tag memory and loop tag past value memory occupy a total of 128 words. (Refer to Page 27, Section 3.3.1 for
details.)
*3 The applications of the loop tag past value memory are indicated below.
Specified position
D2
When control is to be started from the initial status, the data must be cleared with the sequence program.
*4 The set value (E2) becomes valid when the set value pattern (SVPTN) is set to "E2 is used".
When using the MV of the upper loop as the set value (E2), specify the device where the manipulated value (MV) of the upper
loop is set (offset + 12: MV).
When not using E2 as the set value, make sure to specify a dummy device.
(Special register SD1506 can be specified as a dummy device.)
*5 The control cycle counter rounds off the data to the nearest whole number.
(2) Execution cycle ( T)
Set the execution cycle in SD1500 and SD1501 as real numbers.
Name
Recommended range
0 to FFFF
H
b15 b12
T
Alarm
R
K
detection
F
inhibit
TRKF
(0: Without tracking)
(1: With tracking)
Manipulated
-10 to 110
value
Set value RL to RH
Deviation (-110 to 110)
Hysteresis 0 to 999999
Engineering
value upper -999999 to 999999
limit
Engineering
value lower -999999 to 999999
limit
Control cycle
0 to 999999 Note that
–– Used by the system as a work area.
Set value -10 to 110
+96 Control cycle counter initial preset flag
*5
+97 Control cycle counter
*1
Unit Data format
b8 b4 b0
––
%
––
%
––
––
––
CT
s
32767
T
––
%
Description
S.ONF2
Standard Set
value by
BIN
4000
S/U
H
16Bit
Real
0.0 S/U
number
Real
0.0 U
number
Real
0.0 S
number
Real
0.0 U
number
Real
100.0 U
number
Real
0.0 U
number
Real
1.0 U
number
–– –– S
Real
0.0 S/U
number
177
9
2
3
4
4
6
7
8