Module status leds, Trusted, Communication interface t8151b – Rockwell Automation T8xxx Trusted Communications Interface User Manual
Page 44

Trusted
TM
Communication Interface T8151B
Issue 21 Apr 10
PD-T8151B
44
4.2. Module Status LEDs
There are ten status LEDs on the Communications Interface front panel; Healthy, Active, Standby,
Educated, and six Communications.
The module status LED states and their meanings are described as follows:
LED
INDICATION
Healthy
Module health:
Steady green
= healthy
Flashing red
= slice failed.
Active
Steady green when the module is in the Active mode.
Standby
Not used.
Educated
Not used. Set to steady green at power-up.
Communications
Six tri-coloured LEDs indicate data transfer activity on all serial
communications ports and both Ethernet ports.
The LEDs flash red when responding and green when receiving.
The Ethernet LEDs indicate steady green in the absence of a network
connection (for 8151 up to rev H and 8151B up to rev B only)
Table 16 Pre Build C, module status LED’s
LED
INDICATION
Healthy
Module health:
Steady green
= healthy
Flashing red
= slice failed.
Active
Steady green when the module is in the Active mode. (application running,
communications enabled)
Standby
Steady green when the module is in the Standby mode. (application stopped,
communications disabled)
Educated
CI configuration loaded successfully from MP
Communications
Six tri-coloured LEDs indicate data transfer activity on all serial
communications ports and both Ethernet ports.
The LEDs flash red when transmitting data and green when receiving and
amber when transmitting and receiving.
Table 17 Build C, module status LED’s