Timing To Start The I/O Data Exchange - Mitsubishi Electric MELSEC iQ-R Series User Manual

Timing to start the I/O data exchange

When the automatic start is selected
The following figure shows the timing chart of the I/O data exchange start with the IO device set to the automatic start.
'Parameter setting status' (Un\G17118.0)
'IO device data exchange start method
setting area' (Un\G17001 to Un\G17008)
'Data exchange start request'
(Un\G17000.0)
'Data exchange start completion'
(Un\G17118.3)
'IO device communication status'
(Un\G17153 to Un\G17160)
'IO device error'
(Un\G17161 to Un\G17168)
<System>
Setting value: Setting OK (ON)
ON
OFF
Setting value: Automatic startup (OFF)
OFF
OFF
OFF
OFF
OFF
Data exchange stopped
Specify the Check the parameter
start method for setting status.
IO device data
exchange.
ON
Setting value: Started (ON)
ON
Processing to
establish data
exchange
Request the data
exchange start.
1.1 Data Exchange Function
ON
IO device error (OFF)
Data are being exchanged.
Check the IO
device error status.
1 FUNCTIONS
1
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