Display Panel LED Diagnostics

The state of the BMENUA0100 module display panel LEDs are presented, below, for the several operating states of the module.

NOTE: The state of the SECURE LED for the configured and non-configured state of the module are separately presented, below, following the initial presentation.

Operating State

RUN LED (Green)

UACNX LED (Green/Red)

ERR LED (Red)

BS Backplane LED (Green/Red)

NS Control Port LED (Green/Red)

BUSY LED (Yellow)

SECURE LED (Green/Red)

Power on sequence

1

OFF

ON

ON

Green OFF

Red ON

Green OFF

Red ON

OFF

Green OFF

Red ON

2 (All LEDs ON)

ON

ON

ON

Green ON

Red ON

Green ON

Red ON

ON

Green ON

Red ON

3 (All LEDs OFF)

OFF

OFF

OFF

Green OFF

Red OFF

Green OFF

Red OFF

OFF

Green OFF

Red OFF

4

ON

OFF

ON

Green OFF

Red OFF

Green OFF

Red OFF

OFF

Green OFF

Red OFF

5 (Autotest1)

Flashing

Flashing

Flashing

Green Flashing

Red OFF

Green Flashing

Red OFF

Flashing

Green Flashing

Red OFF

Not configured

OFF

OFF

Blinking

Red blinking if not connected to an Ethernet Backplane port. Blinking green otherwise.

OFF if not cable plugged and connected to another powered device. Blinking green otherwise.

OFF

Refer to cyber-security LEDs, below.

Configured

After detecting a duplicated IPv4 address on backplane port

Blinking

Refer to description of UACNX LED, below

/

Green OFF

Red ON

/

/

Refer to description of Secure Communication Status LED, below.

After detecting a duplicated IPv4 address on Control Port

Blinking

/

/

Green OFF

Red ON

/

RUN State

ON

OFF

Green ON

Red OFF

Steady green if connected; Off if no cable

ON if data-dictionary acquisition in progress; Flashing if data dictionary overflow; otherwise OFF

Power Off

OFF

OFF

OFF

Green OFF

Red OFF

Green OFF

Red OFF

OFF

Green OFF

Red OFF

Recoverable Detected Error or Inconsistent Configuration2

/

/

ON

/

/

/

/

Non-recoverable Detected Error

(Module will reboot)

OFF

OFF

ON

Green OFF

Red ON

Green OFF

Red ON

OFF

Green OFF

Red ON

Security Reset

In progress

Blinking

OFF

OFF

Green OFF

Red ON

Green OFF

Red ON

ON

Green OFF

Red OFF

Complete

ON

OFF

OFF

Green OFF

Red ON

Green OFF

Red ON

OFF

Green OFF

Red OFF

Missing Security Reset3

OFF

OFF

ON

Green OFF

Red ON

Green OFF

Red ON

OFF

Blinking Red

OS Update

Blinking

OFF

OFF

Green OFF

Red ON

Green OFF

Red ON

ON

Green OFF

Red OFF

1. The autotest is performed quickly and LED flashing cannot be visually detected.

NOTE: If the module remains in Autotest state, check the rotary switch to confirm that it is not broken.

2. Refer to SERVICES_STATUS detected error codes in the T_BMENUA0100 DDT.

3. This state results from changing the rotary switch from Standard to Secured mode, or from Secured to Standard mode without performing a Security Reset as an intermediate step.

NOTE: In this table, “/” indicates any state.

UACNX LED When the Module is in Configured State

The color (red or green) and state (blinking or steady) describe the state of the OPC UA connections:

Data Dictionary State

OPC UA Client Connection State

No OPC UA Client Connected

At Least 1 OPC UA Client Connected

Data Dictionary Unavailable

Blinking Red

Steady Red

Data Dictionary Available

Blinking Green

Steady Green

Secure Communications Status LED When the Module is Configured/Not Configured State

The states of the SECURE LED, when the module is in the configured or not configured state, are described below:

LED State

Description

OFF

The module is not operating in secure operating mode (i.e., the rotary switch is not set to the secure position).

RED

A secure communications critical error is detected. For example, no security configuration is present, a certificate is invalid, a certificate has expired and communications have stopped, and so forth.

GREEN

Secure communications are enabled and running without detected error. A client is connected to the module and the module has received a valid cybersecurity configuration. The session is opened and the module is ready to respond to client requests.

FLASHING RED

Secure communications are enabled and running, but an error has been detected. For example, a certificate has expired but the configuration authorizes communications to continue.

FLASHING GREEN

The module has received a valid cybersecurity configuration and is ready to communicate with a client which will initiate a communication.

Control Port LED Diagnostics

The control port LEDs can be used to diagnose the state of Ethernet communications over the control port:

LED

State

Description

ACT

Off

No link established.

Green

Link established, no activity.

Blinking Green

Link established, activity detected.

LNK

Off

No link established.

Yellow

Link established at speed less than module maximum capability (10/100Mbps).

Green

Link established at speed equal to module maximum capability (1000Mbps).