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5
FUNCTIONS
Parameter creation
Module READY
Basic parameter
setting existence
Automatic communication
parameter setting
request/Automatic
communication start request
Automatic communication
stop request
Automatic communication parameter
setting, normally completed
Automatic communication parameter
setting, error completed
Automatic communication
operation status
5 - 4
(b)
When the QJ71MT91 starts communication with the slave device with the
automatic communication function, the SD and RD LEDs turn ON. (Only
when communicating)
(c)
On the "Automatic communication status" screen of GX Configurator-MB,
the start/stop test of the automatic communication function can be
performed. (Refer to Section 8.6.3.)
(d)
To start or stop the automatic communication function from a sequence
program, turn on/off Automatic communication parameter setting
request/Automatic communication start request (Y4) and Automatic
communication stop request (Y6).
(e)
Automatic communication start/stop timing chart
Automatic communication parameter
setting, normally completed/
Automatic communication start
Automatic
communication
parameter
creation
ON
OFF
X0
ON
OFF
X3
OFF
Y4
Y6 OFF
OFF
X4
OFF
X5
OFF
X6
(f)
Precautions for starting/stopping the automatic communication function
1)
Be sure to turn on Automatic communication parameter setting
request/Automatic communication start request (Y4) after Module
READY (X0) and Basic parameter setting existence (X3) have turned
on.
2)
When using Automatic communication stop request (Y6) to stop the
automatic communication function, satisfy all of the following
conditions.
Condition 1: Module READY (X0) is on.
Condition 2: Basic parameter setting existence (X3) is on.
Condition 3: Automatic communication operation status (X6) is on.
3)
An error will occur if Automatic communication stop request (Y6) is
executed when the automatic communication function has stopped
(Automatic communication operation status (X6) is off).
Automatic communication parameter
Automatic
setting, normally completed/
communication
stop
Automatic communication start
ON
ON
ON
Automatic
communication
function operating
Executed by QJ71MT91
Executed by sequence program
MELSEC-Q
ON
ON
ON
Automatic
communication
function operating
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