Mitsubishi Electric MELSEC iQ-R Series User Manual page 20

When the manual start is selected
The following figure shows the timing chart of the I/O data exchange start with the IO device set to the manual 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 data exchange
management setting area'
(Un\G17009 to Un\G17016)
'IO device data exchange
management execution request'
(Un\G17017 to Un\G17024)
'IO device data exchange
management execution completion'
(Un\G17120 to Un\G17127)
'IO device communication status'
(Un\G17153 to Un\G17160)
'IO device error'
(Un\G17161 to Un\G17168)
<System>
*1 After the signal of 'IO device data exchange management execution completion' (Un\G17120 to Un\G17127) has turned on, the signal of
'IO device data exchange management execution request' (Un\G17017 to Un\G17024) can be turned off.
1 FUNCTIONS
18
1.1 Data Exchange Function
Setting value: Setting OK (ON)
ON
OFF
Setting value: Manual startup (ON)
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Data exchange stopped
Specify the start Request the data
method for IO exchange start.
device data exchange
(ON: Manual startup).
Check the parameter
setting status.
ON
Setting value: Started (ON)
ON
Setting value: Start data exchange. (ON)
ON
ON
Waiting status for data
exchange start instruction
Request the data exchange
execution for each IO device.
Request the data exchange
start for each IO device.
ON
Processing to
establish data
exchange
Turn off 'IO device data
exchange management
execution request'
(Un\G17017 to
Un\G17024).
OFF
OFF
ON
IO device
error (OFF)
Data are being
exchanged.
*1
Check the IO
device error
status.