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What This Chapter Contains
1791DS-IB12,
1791DS-IB8XOB8,
1791DS-IB4XOW4 Module
LED Indicators
97
Interpret the LED Indicators
This chapter includes an explanation of the meaning of module
indicators.
See this section for information on how to interpret these module
indicators.
• MS/NS indicators - The MS (module status) indicator displays the
status of a node on the network. The NS (network status)
indicator displays the status of the entire network. The MS and
NS indicators can be green or red and on, flashing, or off.
See the table for meanings indicated by the combination of
colors and status.
• LOCK indicator - The configuration lock indicator displays that
the configuration data has been locked by using RSNetWorx for
DeviceNet software.
• IN PWR/OUT PWR indicators - The IN PWR and OUT PWR
indicators displays the status of I/O power supplied to the
module.
• I/O indicators - The I/O indicators display how the on/off and
fault status of I/O points on each module.
Chapter
Publication 1791DS-UM001H-EN-P - April 2009
7
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