Mitsubishi MELSEC-Q series Programming Manual page 112

S.PIDP
Specified position Symbol
+52
D2
P
+53
+54
I
+55
Loop tag
+56
D
*2
memory +57
+58
GW
+59
+60
GG
+61
Loop tag
+96
D2
past value
––
*2
memory
+116
*3
+0
S3
*4
E2
Set value
+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
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.
110
Name
Recommended range
Gain 0 to 999999
Integral
0 to 999999
constant
Derivative
0 to 999999
constant
Gap width 0 to 100
Gap gain 0 to 999999
–– Used by the system as a work area.
Set value -10 to 110
+96 Control cycle counter initial preset flag
D2
*5
+97 Control cycle counter
+100
I (Last value)
n-1
+101
+102
B (Last value)
n-1
+103
+104
PV (Process value)
n
+105
+106
PV (Last process value)
n-1
+107
Alarm detection 2 (ALM2)
b15 b12 b8
+116
*1
Unit Data format
––
s
s
%
––
––
%
Description
b4 b0
M M
L H
A A
2 2
MHA2,MLA2
(0: Without alarm)
(1: With alarm)
Standard Set
value by
Real
1.0 U
number
Real
10.0 U
number
Real
0.0 U
number
Real
0.0 U
number
Real
1.0 U
number
–– –– S
Real
0.0 U
number