SIOL-EI8B-USER-M
56
Operation
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Version 1, May 2022
9.1.5. LED indication for LNK/ACT
LED-Indication Overview
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LNK/ACT (Link/Activity) indicate the state of EtherNet/IP communications at each port.
LED Indication LNK
LED Indication LNK
Indication
Condition
Description
Green
Steady on
Connection to network available.
Off
Off
No connection to network.*
* If LED remains OFF, check the line connections.
LED Indication ACT
LED Indication ACT
Indication
Condition
Description
Green
Flashing
The module is sending/receiving Ethernet frames
Off
Off
The module is not sending/receiving Ethernet frames*
9.1.6. LED indication for State
LED-Indication Overview
◼
ST - indicates the state of the overall module.
LED Indication ST
LED Indication ST
Indication
Condition
Description
Green
Steady on
The regular firmware is running. Normal operation.
Green
Flashing at 4 Hz
The operation requested by the position of the rotary switch is
being performed. Do not switch off the device.
Red
Flashing at 1 Hz
Invalid rotary switch position. The system will not start.
Red
Steady on
Initialization error. Error during module initialization.
◼
HW problems
◼
Missing valid configuration
◼
No COM FW found
◼
Rotary switch operation failed, etc.
