User`s manual

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MELSEC-Q
8 I/O CONTROL INSTRUCTIONS
Control data
(1) Data specified in S.BC instruction
Specified position Symbol Name Recommended range
*1
Unit Data format
Standard
value
Store
Input data
S1
+0
+1
E1 Input value 0 to 2147483647
BIN
32Bit
U
BW
BW1 Output1
D1
+0
BW2 Output2
b15 b12 b8 b4 b0
B
W
1
(0: OFF)
(1: ON)
B
W
2
BIN
16Bit
S
BB
BB1 Alarm
BB2
Upper limit
alarm
Block
memory
+1
BB3
Change rate
alarm
b15 b12 b8 b4 b0
B
B
3
B
B
2
B
B
1
(0: Without alarm)
(1: With alarm)
BIN
16Bit
S
D2
+3
ALM
Alarm
detection
0 to FFFF
H
b15
b12 b8
b4 b0
P
H
A
D
P
P
A
PHA, DPPA
(0: Without alarm)
(1: With alarm)
BIN
16Bit
4000
H
S/U
+4 INH
Alarm
detection
inhibition
0 to FFFF
H
b15
b12 b8
b4 b0
E
R
R
I
0: Alarm enable
1: Alarm inhibit
P
H
I
D
P
P
I
BIN
16Bit
4000
H
S/U
+14
+15
SV1 Set value1 0 to 2147483647
BIN
32Bit
0U
+16
+17
SV2 Set value2 0 to 2147483647
BIN
32Bit
0U
+26
+27
PH
Upper limit
alarm set
value
0 to 2147483647
BIN
32Bit
0U
+42
+43
CTIM
Change rate
alarm check
time
0 to 999999 Note that
32767
CTIM
T
s
Real
number
0.0 U
Loop tag
memory
*2
+44
+45
DPL
Change rate
alarm value
0 to 2147483647
BIN
32Bit
0U
*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 Section 3.3.1 for details.)