Interpret the status indicators – Rockwell Automation 1756-DNB ControlLogix DeviceNet Scanner Module Installation Instructions User Manual

Page 35

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ControlLogix DeviceNet Scanner Module 35

Publication

1756-IN566D-EN-P - June 2008

Interpret the Status Indicators

The status indicators on the module provide information about your network
and its connections. The following tables outline the indicator condition and
corresponding status and explain what each condition means:

• Module/Network (MOD/NET) Status Indicator - This bi-color

(green/red) status indicator provides device and communication
status.

• I/O Status Indicator - This bi-color (green/red) status indicator

indicates the status of the 1756-DNB scanner module’s I/O scanning
state. The I/O status indicator informs you whether this device has
outputs under control and whether any outputs or inputs are active
(such as outputs active and inputs producing) or faulted. The I/O
status indicator reflects the mod/state of the inputs and outputs, not
necessarily the on/off condition of the I/O points themselves.

• OK Status Indicator - This bi-color (green/red) status indicator

indicates whether the device has power and is operating properly.

97

The controller has placed the
scanner in halt mode.

If the O.CommandRegister.HaltScanner
bit is on, turn it off. Then cycle scanner
power.

98

General firmware error.

Replace device.

99

System failure.

Replace device.

DeviceNet Status Codes

Status
Code

Description of Status

Recommended Action

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