Setting The Status Of Input Data From A Data Link Faulty Station - Mitsubishi LJ61BT11 User Manual

8.2.4 Setting the status of input data from a data link faulty station

Master station
Remote input (RX)
Station number 1
Station number 2
Station number 3
Station number 4
Remote output (RY)
Station number 1
Station number 2
Station number 3
Station number 4
Remote register
(RWw)
Station number 1
Station number 2
Station number 3
Station number 4
Remote register
(RWr)
Station number 1
Station number 2
Station number 3
Station number 4
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This function sets whether to clear or retain the input data (remote input (RX)) from
data link faulty stations.
For the status of each station at error occurrence, refer to Section 8.2.6.
(1) Target input (receiving) data
The following shows the applicable buffer memory areas.
Remote I/O station
(station number 1)
Input
Output
The remote input RX in the master station and the remote input RX and remote output
RY in local stations either clear or retain data from faulty stations according to the
setting. The remote register RWr in the master station and the remote register RWw
and remote register RWr in local stations retain data from faulty stations regardless of
the setting.
POINT
When the data link faulty station is set as an error invalid station, input data (remote
input RX) from that station is retained regardless of the setting.
Remote device station
(station number 2) (station number 3)
Remote output (RY)
Remote input (RX)
Remote input (RX)
Remote output (RY)
Remote register
(RWw)
Remote register
(RWr)
Target areas for clear/hold
Areas retained regardless of the setting
Local station Local station
(station number 4)
Remote output (RY)
Station number 1 Station number 1
Station number 2 Station number 2
Station number 3 Station number 3
Station number 4 Station number 4
Remote input (RX)
Station number 1 Station number 1
Station number 2 Station number 2
Station number 3 Station number 3
Station number 4 Station number 4
Remote register Remote register
(RWr) (RWr)
Station number 1 Station number 1
Station number 2 Station number 2
Station number 3 Station number 3
Station number 4 Station number 4
Remote register Remote register
(RWw) (RWw)
Station number 1 Station number 1
Station number 2 Station number 2
Station number 3 Station number 3
Station number 4 Station number 4
8 FUNCTIONS
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