Rockwell Automation 1395 Node Adapter Board - Manual (Page 65)

Chapter 6
Troubleshooting and Maintenance
6-3
S NA-14 – BLOCK TRANSFER TYPE
Communication malfunction between Node Adapter Board and PLC
Controller. Check wiring, PLC Controller, replace Adapter Board.
S NA-15 – BLOCK TRANSFER LENGTH
Communication malfunction between Node Adapter Board and PLC
Controller. Check wiring, PLC Controller, replace Adapter Board.
S NA-16 – NO COMM RECEIVED
Communication malfunction between Node Adapter Board and PLC
Controller. Check wiring, PLC Controller, replace Adapter Board.
S NA-17 – IDLE LINE LOST
Communication malfunction between Node Adapter Board and PLC
Controller. Check wiring, PLC Controller, replace Adapter Board.
S NA-18 – UNREQ BLOCK TRANSFER
Communication malfunction between Node Adapter Board and PLC
Controller. Check PLC Controller program, replace Adapter Board.
S NA-19 – COMM LOST STATE
Communication malfunction between Node Adapter Board and PLC
Controller. Check wiring, PLC Controller, replace Adapter Board.
S NA-20 – RESET/ PROGRAM/ TEST
Communication malfunction between Node Adapter Board and PLC
Controller. Check PLC Controller Mode Switch, replace Adapter Board.
S NA-21 through NA-23 – NOT USED
Reserved for future use.
S NA-24 – IL RACK CONFIGURE
Incorrect DIP switch settings on Adapter Board.
S NA-25 – IL BT REQUEST VALUE
Internal error during handling of a block transfer.
S NA-26 through NA-99 – NOT USED
Reserved for future use.
Adapter Troubleshooting Each processor or Adapter Board provides its own set of sophisticated
diagnostics which the user can examine to determine the exact nature of
problems that may arise. Maintenance is done at the board level.
Examining the diagnostic/fault messages available determines whether a
board should be replaced. The malfunctioning board may be returned to
Allen-Bradley for further disposition.