APPENDICES
Appendix 2 A Series Modules
Appendix 2.2 Functional comparisons
App
- 3
9
P
R
OGRAM
M
ING
10
D
E
DICA
TED
INSTRUC
TI
ONS
11
TR
O
U
BLE
S
HOOTING
APP
ENDICE
S
INDE
X
Appendix 2.2 Functional comparisons
: Available
: Not available
* 1 MODBUS
devices cannot be assigned to the buffer memory.
* 2 The following is a list of standard functions available in the slave function.
: Supported
: Not supported
Table App.3 Functional comparisons
Function
AJ71UC24-S2
A1SJ71UC24-R2-S2
A1SJ71UC24-R4-S2
QJ71MB91
Master function
Automatic
communication function
Dedicated instruction
Slave function
*2
Automatic response
function
MODBUS
device
assignment function
*1
Link operation function
Various settings using utility package
Computer link function
Function code
(Sub code)
Function
AJ71UC24-S2
A1SJ71UC24-R2-S2
A1SJ71UC24-R4-S2
QJ71MB91
01
Read coils
02
Read discrete inputs
03
Read holding registers
04
Read input registers
05
Write single coil
06
Write single register
07
Read exception status
08
Diagnostics
11
Get communications
event counter
12
Get communications
event log
15
Write multiple coils
16
Write multiple registers
17
Report slave ID
20(6)
Read file record
21(6)
Write file record
22
Mask write register
23
Read/Write multiple
registers
24
Read FIFO queue
43
Read device
identification
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