Input And Output Status Settings When Failure Occurs - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

Input and output status settings when failure occurs

For the master/local module, status of input from a data link faulty station and output status of cyclic data if a stop error occurs
in the CPU module can be set.
Status
Input status of data link faulty station
Cyclic data output when a stop error occurs in the CPU module
Station No.0
Master
station
RX
Station
No.1
Station
No.2
Station
No.3
RY
Station
No.1
Station
No.2
Station
No.3
RWw
Station
No.1
Station
No.2
Station
No.3
RWr
Station
No.1
Station
No.2
Station
No.3
Area for which "Clear" or "Hold" can be selected in the data link faulty station input status setting
Area for which "Clear" or "Hold" can be selected in the cyclic output setting for a stop error of
the CPU module
Area where data are held regardless of the setting
Area that depends on the setting of the slave station (other than a local station)
Range where the settings are enabled
Whether to clear or hold the following RX and RY input data can be selected.
• Master station RX
• Local station RX and RY (only the input data from other stations)
Even if "Clear" is set, input data will be held for two seconds after
communication failure such as Ethernet cable disconnection.
The RWr and RWw input data are held regardless of the setting.
• Master station RWr
• Local station RWr and RWw (only the input data from other stations)
Whether to clear or hold the RY data (only the output data from the own
station) of the master station and local station can be selected.
Station No.1 Station No.2
Slave station
Local
(other than a
station
local station)
RX RY
Station Station
No.1 No.1
Station
No.2
Station
No.3
RY RX
Station Station
No.1 No.1
Station
No.2
Station
No.3
RWw RWr
Station
Station
No.1 No.1
Station
No.2
Station
No.3
RWr RWw
Station Station
No.1 No.1
Station
No.2
Station
No.3
Station No.3
Local
station
RY
Station
No.1
Station
No.2
Station
No.3
RX
Station
No.1
Station
No.2
Station
No.3
RWr
Station
No.1
Station
No.2
Station
No.3
RWw
Station
No.1
Station
No.2
Station
No.3
1 FUNCTIONS
1.1 Cyclic Transmission
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