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GFK-1538H
3. Connect the communications bus to the connector on the front of the Network Slave Module. (Refer to the
heading Bus Installation Guidelines for detailed bus installation instructions.)
4. Remove the connector cover on the right-hand side of the Communications Carrier. Do not discard this cover;
you will need to install it on the last carrier. It protects the connector pins from damage and ESD during handling
and use. Do not remove the connector cover on the left-hand side.
Connector Cover
5. Install additional modules by mounting modules on their carriers and sliding them along the DIN rail to fully
engage the connectors in the sides of the carriers.
6. Power up the System, and Observe the Module LEDs. The LEDs indicate the presence of power and show the
operating mode and status of the NSM.
OK Green indicates the NSM has completed powerup diagnostics and is successfully communicating over the
PLC backplane.
Blinking green indicates that the NSM is in boot mode or its firmware is being updated.
Amber when the NSM has detected a fault, is not communicating over the PLC backplane, or has received
an invalid configuration.
Blinking amber means the NSM has either detected a fault, is not communicating over the PLC backplane,
or has received an invalid configuration.
OFF when the NSM is not receiving power.
COM Green indicates the NSM is online and in network data transfer state.
Blinking green indicates that the NSM is in network data transfer state but not exchanging
communications with the CPU (CPU is stopped).
Amber when the NSM is communicating on the Profibus network but its configuration does not match the
Profibus master.
Blinking amber means the NSM has rejected the configuration from the CPU, or the configuration contains
no network I/O specifications (eg. the default configuration).
OFF when the NSM is offline and has not yet received its configuration from the CPU.
Connector Cover
Nov 2019
4
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