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7
PARAMETER SETTING
Classification
Internal system device
Internal user device
Direct device
Index register
File register
QJ71MT91 buffer memory
(*2)(*3)
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(1) Device codes
(a)
Set the device codes for the programmable controller CPU devices and
QJ71MT91 buffer memory area assigned to the MODBUS devices.
(b)
The device codes have different setting ranges depending on the MODBUS
devices.
Refer to the following table for the device code setting ranges.
Device Name
Special relay
Special register
Input
Output
Internal relay
Latch relay
Annunciator
Edge relay
Link relay
Data register
Link register
Coil
Timer
Contact
Current value
Coil
Retentive
Contact
timer
Current value
Coil
Counter
Contact
Current value
Link special relay
Link special register
Step relay
Direct input
Direct output
Index register
File register
User free area
*1: The device assigned to the extended file register is fixed to the file register (ZR).
Refer to Section 7.4.4 for the extended file register.
*2: Refer to Section 7.4.5 for device assignment to the QJ71MT91 buffer memory.
*3: Only this device is supported when the QJ71MT91 is mounted on a MELSECNET/H remote I/O
station. An error will occur if an access request is received from the MODBUS/TCP master with
any other device assigned.
*4: Corresponds to LB and LW on a MELSECNET/H remote I/O station.
Device
Device
Symbol
Code(*5)
SM(*3)
0091
H
SD(*3)
00A9
H
X(*3)
009C
H
Y(*3)
009D
H
M(*3)
0090
H
L
0092
H
F
0093
H
V
0094
H
B(*3)(*4)
00A0
H
D(*3)(*6)
00A8
H
W(*3)(*4)
00B4
H
(*6)
TC
00C0
H
TS
00C1
H
TN
00C2
H
SC
00C6
H
SS
00C7
H
SN
00C8
H
CC
00C3
H
CS
00C4
H
CN
00C5
H
SB(*3)
00A1
H
SW(*3)
00B5
H
S
0098
H
DX
00A2
H
DY
00A3
H
Z
00CC
H
R
00AF
H
ZR(*1)
00B0
H
F000
H
MELSEC-Q
Assignable MODBUS Device
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