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APPENDIX
MELSEC-Q
3)
Prepare two QJ71AS92 modules. Then connect the slaves of the first
and second systems to the respective modules.
QJ71AS92 QJ71AS92
(second
(first
module) module)
Slave
Slave
address 1 address 2
Slave
address 3
Slave
address 2
Group 1 of the first module
Slave
address 3
Slave
address 4
Group 1 of the second module
(3) Precautions for program utilization
No.
1
2
Item
QJ71AS92
Unit READY signal X0
Watchdog timer
error signal
A1SJ71AS92
X1
X0 (Also used as Unit READY signal)
X0
• ON: Normal
• ON: Normal
• OFF: Watchdog timer error occurred
• OFF: Watchdog timer error occurred
1) When values are set in the projected slave
list (LPS (for write)) (buffer memory
addresses: 49H to 4CH) and Configuration
Configuration
3
Registration
Request/completed
Registration Request (Y13) is turned ON,
they are registered.
2) The registration result is reflected on the
projected slave list (LPS (for read)) (buffer
memory addresses: 19H to 1CH), and
Configuration Registration Completed (X3)
1) When values are set in the projected slave
list (LPS (for write)) (buffer memory
addresses: 49H to 4AH, A9H to AAH), they
are registered automatically.
2) The registration result is reflected on the
projected slave list (LPS (for read)) (buffer
memory addresses: 19H to 1AH, 79H to 7AH).
is turned ON.
1) When a command is written to the
command buffer <request> (buffer memory 1) When a command is written to the
4
Command
Request/completed
addresses: 55H to 59H) and Command
command buffer <request> (buffer memory
Request (Y12) is turned ON, the command
addresses: 55H to 59H, B5H to B9H), the
is executed.
command is executed automatically.
2) The execution result is stored into the
2) The execution result is stored into the
command buffer <request> (buffer memory
command buffer <result> (buffer memory
addresses: 25H to 29H) and Command
addresses: 25H to 29H, 85H to 89H).
Completed (X2) is turned ON.
App. - 6
App. - 6