CANopen Communication Module DVPCOPM-SL 7.2 RUN LED RUN LED green light single flash versus blinking: 7.3 ERR LED DVP-PLC Operation Manual 45 LED status Indication How to correct Off No power Check the power of DVPCOPM-SL and make sure the connection is normal. Green light single flash DVPCOPM-SL in STOP status Upper computer is downloading network configuration and DVPCOPM-SL is waiting till the download is finished. Green light blinking DVPCOPM-SL in pre-operational status 1. Check the wiring for bus cables of CANopen network is proper. 2. Check the baud rate of master and other slaves. 3. Check if the configured slave has been connected to network really. 4. Check if the slave is offline.
Green light steady on DVPCOPM-SL is operational status -- LED status Indication How to correct Off Normal -- Red light double flash Slave is offline. 1. Check if CANopen bus is standard cable. 2. Check if both terminals of CANopen bus are connected with terminal resistance. Red light single flash Bus error exceeds the warning limit. 1. Check if CANopen bus is standard cable. 2. Check if both terminals of CANopen bus is connected with terminal resistance. 3. Check if the interference around CANopen bus is too strong. Red light steady on Bus-off 1. Check if connection for CANopen network bus cables is proper. 2. Check if DVPCOPM-S and other slaves are at same baud rate.