Chapter 11 DeviceNet Remote I/O Module AHRTU-DNET 11.7.2 Digital Display Diagnosis 11-105 LED status Indication How to deal with Red light ON Hardware error Send it back to the factory for repair if the error still exists after repowering AHRTU-DNET-5A. LED status Indication How to deal with 0~63 The node address of -- AHRTU-DNET-5A when it works normally F0 Its station number is Ensure that the node address is unique and repower it after modifying the node address. duplicated with that of other node or exceeds the valid range. F1 No module setting has been Configure the module and then download it to AHRTU-DNET-5A. configured to AHRTU-DNET-5A.
F2 The work voltage of Check if the work power of AHRTU-DNET-5A is AHRTU-DNET-5A is too low. normal. F3 AHRTU-DNET-5A enters the Repower AHRTU-DNET-5A. test mode. F4 AHRTU-DNET-5A enters the Bus-Off state. 1. Check if the network cable is normal and the shielded wire has been grounded. 2. Check if the baud rate of the node equipment on the network is the same. 3. Check if the two ends of the network have been connected with one 121 Ω resistor respectively. 4. Repower AHRTU-DNET-5A. F5 No network power Make sure the cable is correctly connected and check if the network power is normal.
F6 Internal error; internal storage If the error still exists after repower, send your detection error AHRTU-DNET-5A back to the factory for repair. F7 Internal error; data exchange If the error still exists after repower, send your unit error AHRTU-DNET-5A back to the factory for repair. F8 Error produced in factory If the error still exists after repower, send your manufacturing AHRTU-DNET-5A back to the factory for repair. F9 Internal error; FLASH access If the error still exists after repower, send your error AHRTU-DNET-5A back to the factory for repair. FA Main rack error 1. Check the connection of the main rack and replace it with a new one. 2. Replace the main rack with a new one.
FB Invalid configuration data Ensure that the network is normal and re-download the configuration; ensure the node address of AHRTU-DNET-5A is different from that of other node. E4 Module error The corresponding module connected to the rack slot is in error state; check if the corresponding module alarms or is bus-off or does not fit the configured module or has been added to the scan list.