AH500 Module Manual 10.6 Network Node Status Display 10.6.1 Scan List Node Status Display The function is used for monitoring whether the DeviceNet slave is offline or not. The scanner module conducts the real-time monitor and control of the nodes in the scan list and maps the status of each node in the scan list to one bit so that users could acquire the status information of the network node through monitoring the value in the corresponding register. If the starting address for the input is D1000, the corresponding relations between the node status registers and the slave are as follows. Note:
If the starting address for the input is set to D567 (See section 10.6.2), the node status registers are D567~D570 instead of D1000~D1003. When the nodes in the scan list are normal, the corresponding bit is OFF; when the nodes are abnormal, the corresponding bit is ON. 10.6.2 Scanner Module Status Display If the starting address for the input is D1000, users could acquire the status message of the scanner module AH10DNET-5A through monitoring D1004 in real time.
When the scanner module works normally, the content of D1004 is 0; when the scanner module is initializing, the content of the high byte and low byte in D1004 are 1 and 0 respectively; when an error occurs in the scanner module, the high byte content in D1004 is 2 and the low byte content is the error code. Regarding the details on the error code, please refer to the seven-segment display in section 10.10.2. Note: If the starting address for the input is set to D600 (Refer to section 10.6.2), the register in the above table is D604 instead of D1004. 10-18 Node status Corresponding network node register b15 b14 b13 … … b1 b0 D1000 Node 15 Node 14 Node 13 … …
Node 1 Node 0 D1001 Node 31 Node 30 Node 29 … … Node 17 Node 16 D1002 Node 47 Node 46 Node 45 … … Node 33 Node 32 D1003 Node 63 Node 62 Node 61 … … Node 49 Node 48 PLC Description register b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 D1004 Scanner module status (0: Normal, 1: Initializing, 2: Error) Error codes in the scanner module (See section 7.11.2.)