Okuma Alarm-D 4220 Communication procedure EOT
EOT which indicates that the parity station has detected a communication alarm is received during communication procedures.
1->Reception in phase 2 (transmitting station)
2->Reception in phase 3 (transmitting station)
3->Reception in phase 3 (receiving station)
Probable Faulty Locations
1)Defective RS232C interface
2)Defective hardware or software of the host computer
3)Mismatch between the actual communication line specification (baud rate, code configuration, etc.) and the communication set by the communication parameters.
Measures to Take
1)Check the hardware and software of the host computer.
2)Change the FRP board or RPP board channel to other channel by setting proper date at communication parameter.
Change the connection of the connector to the proper position,accordingly.
3)Check the following communication specifications between the actual communication line specification and the communication
RS232C interface channel being used
Number of stop bits
Use of WACK/TTD control
Effective/ineffective transparent mode