Correction Of Network Cable Disconnections - Omron SYSMAC CS1W-CLK13 Operation Manual

Locating and Correcting Cable Disconnections
Note

10-5-3 Correction of Network Cable Disconnections

1,2,3...
276
Ring Status of Nodes 1, 3, 5, and 6
Bit
15 Network Disconnection Flag
(0: Normal; 1: Disconnection detected)
14 Disconnected node
information #1
13 to 8
7 Local Node Disconnection Flag
(0: Normal; 1: Disconnection detected)
6 Disconnected node
information #2
5 to 0
When only one node's disconnected node information is stored, the data is
stored in bits 8 to 14 (disconnected node information #1).
Cable disconnections must be corrected as soon as possible after they are
located with the disconnect detection and notification function.
The following list shows the most likely causes of disconnections based on
information gathered for OMRON's earlier Optical Bus Networks.
1. The power supply is OFF in a node without a backup power supply.
2. The node's connector is not installed properly.
3. The cable is faulty. (The end of the cable may be dirty or the cable may be
damaged.)
4. The Controller Link Unit is faulty. (The surface of the receiving element may
be dirty or the receiver may be damaged.)
Function
Disconnected Interface Flag
0: SL1/normal; 1: SL2
Node address of disconnected node
Disconnected Interface Flag
0: SL1/normal; 1: SL2
Node address of disconnected node
Section 10-5
Value
1
0
02 Hex
0
0
04 Hex