Mitsubishi Electric MELSEC iQ-F Series User Manual page 155

Cyclic transmission status of each station
■Cyclic transmission status of each station (Un\G4100 to Un\G4101)
Stores the remote station cyclic transmission state for each station No.
Address Bit Station number
Un\G4100 b0 Station 1
b1 Station 2

b15 Station 16
Un\G4101 b0 to b15 Station 17 to 32
• Only the bit of the start station number turns on.
• The status is not stored for the reserved stations and the station numbers after the maximum station
number.
• Use this buffer memory as an interlock for cyclic transmission. ( Page 93 Interlock Programs of Cyclic
Transmission)
Data link status of each station
■Data link status of each station (Un\G4104 to Un\G4105)
Stores the remote station data link status for each station No.
Address Bit Station number
Un\G4104 b0 Station 1
b1 Station 2

b15 Station 16
Un\G4105 b0 to b15 Station 17 to 32
*1 This status includes the case where a remote station has not responded to the first request from the master station due to a power-off of
the remote station. (The remote station is not judged as a faulty station because the data link status is not determined.)
• Only the bit of the start station number turns on.
• The status is not stored for the reserved stations and the station numbers after the maximum station
number.
• This buffer memory can be used to monitor errors in remote stations, connected cables, and a connected
hub.
Total number of connected stations
■Total number of connected stations (Un\G4112)
The total number of connected stations set in GX Works3 is stored. ( Page 71 )
Description
• On: Being performed
• Off: Not performed
Description
• On: Faulty station
• Off: Normally operating station
APPX
Appendix 4 Buffer Memory
A
153