9 - 8 9 - 8
MELSEC-Q
9 PROGRAMMING
(3) Timing charts for MODBUS
®
device assignment parameter setting
(a) When setting is completed normally
Y8
X8
XA
X9
Executed by QJ71MT91
Executed by sequence program
OFF
OFF
OFF
OFF
ON
X0
OFF
ON
ON
X3
OFF
ON
0C13
H
0C14
H
to 0C15
H
ON
Parameter creation
Module READY
Basic parameter
setting existence
R
MODBUS device
assignment
parameter setting
request
R
MODBUS device
assignment
parameter setting,
normally completed
R
MODBUS device
assignment
parameter setting,
error completed
R
MODBUS device
assignment
parameter setting
existence
R
MODBUS device
assignment
parameter error code
storage area
R
MODBUS device
assignment
parameter setting
result storage area
R
MODBUS device
assignment
parameter
creation
R
MODBUS device
assignment parameter
setting, normally
completed
Error code
and setting
result clear