Issue
- Blinking red lights
- Solid red lights
- Blinking orange light
- Blinking green light
- Solid green light
Environment
- Xenta Server Controllers
- 511, 527, 555, 701, 711, 721, 731, 911, 913
Cause
The indicator lights on the face of the Xenta Server controllers can help explain the state of the controller in many different situations.
Resolution
A number of light-emitting diodes (LEDs) on the Xenta device indicate that the application program is running and when communication is in progress.
Fig. 1: LED diagram on the Xenta Server device.
Table1: LED description on the Xenta Server device.
|
Position |
Description |
|
1 |
Neuron status indicator • Off – Normal mode • Red, blinking – Unconfigured mode • Red, steady – Hardware fault |
|
2 |
Serial RS-232 B port activity indicators: • RX – Indicates that data is received • TX – Indicates that data is transmitted |
|
3 |
Overall Run indicator • Green, steady – Normal mode • Green, blinking – Start mode • Red, steady – Fail-safe mode (see description below) • Red, blinking – Unit fault |
|
4 |
Serial RS-232 A port activity indicators: • RX – Indicates that data is received • TX – Indicates that data is transmitted |
|
5 |
Serial RS-485 C port activity indicator. |
|
6 |
Ethernet 10Base-T activity indicator |
|
Note • The LEDs for the RS-232 A interface (position 4) do not indicate communication when using the RS-485 A interface although internal port A is used for both.
|
Fig. 2: Internal serial ports and RS-232/485 interfaces.
