PROFIBUS-DP COMMUNICATION ERROR (Note 1, Note 2, )
Communication error has occurred during the PROFIBUS-DP communication using a field network expansion card. Note : 1. OO xx Γ— Global error bit L—— Indicates the error status (hexadecimal). 01: Control error (parameter error) 02: Auto clear error (Since an update at a slave station has failed, updates at all slave stations have stopped.) 04: No-exchange error (a slave station has an update error) 08: Critical error (communication cannot continue due to a serious network problem) 10: Not ready (NC communication is not ready) 20: Timeout error (a timeout is detected during an update with each station) Master communication status Indicates the status of the master station (hexadecimal). 00: Off-line (being initialized) 40: Stop (I/O stopped) 80: Clear (resetting the output data from each slave station by sending “0” data) C0: Running (I/O being updated) 2. OO ΔΔ L— Slave communication status Γ— Indicates the communication status of the slave station at which a communication error is occurring (hexadecimal). 00: The target slave exists on the bus. An appropriate data communication is being made between the master station and the target slave station. 01: No data communication is being made between the master station and the target slave station. Configuration with the target slave station may not be finished correctly. There may be no response from the target slave station. 02: No data communication may be being made between the master station and the target slave station. Diagnosis information from the target slave station may exist in the internal buffer of the master station. 03: The target slave exists on the bus. An appropriate data communication is being made between the master station and the target slave station. Diagnosis information from the target slave station may exist in the internal buffer of the master station. Slave station number Indicates the number of the slave station at which a communication error is occurring (hexadecimal). However, if no communication is being made with the master station, “00” is displayed. 00: No communication is being made with the master station. 01: Station No. 1 02: Station No. 2 : 7D: Station No. 125
- 1Check the environment of the master station or slave station at which a communication error is occurring.