Yaskawa 260IF DeviceNet System - Manual (Page 68)

Network Maintenance
6.4.1 Masters
6-8
6
6.4 Troubleshooting
When the 260IF Module detects an error during DeviceNet communications, it reports the error
via the LED indicators, I/O status function, and status function. The following table gives prob-
able causes and possible solutions.
6.4.1 Masters
The following table gives the status of indicators and status functions for normal operation
when the 260IF Module is set as a Master.
The following table gives possible solutions for errors that occur when the 260IF Module is
set as a Master.
Table 6.3 Troubleshooting the Master
LED Status I/O Status
MS lit green
NS lit green 8004 8000
Problem
Locations to Check Probable
Cause
Possible Solution
Indicators Status I/O Status
No DeviceNet
communications MS not lit
NS not lit - - No power to
the 260IF Mod-
ule. Check the rack or system bus cable connection to
the 260IF Module.
MS lit red
NS not lit - - Hardware mal-
function Replace the 260IF Module.
MS lit red
NS lit red - - Hardware mal-
function Replace the 260IF Module.
MS lit green
NS lit res 1010 0000 Duplicate
MAC ID 1. Change the MAC ID address for the 260IF
Module and cycle the power.
2. Change the MAC ID addresses for other
DeviceNet devices and cycle the power to the
260IF Module.
1008 - Bus-off 1. Check the wiring and connections for
DeviceNet cables and connectors.
2. Check the power supply voltage and connection
for communications power supply.
3. Check the communications power supply volt-
age for each DeviceNet connector on the 260IF
Module (11 to 24 V).
4. Check the baud rate for each DeviceNet device
in the network.
5. Check the terminator (121 Ω) and connection
status.
6. Check the length of the network.
7. Replace the 260IF Module. Then either cycle
the power for the 260IF Module or disconnect
and re-insert the DeviceNet connectors.