
LED
Color
Status
Description
PWR
Green
On
Power supply available
Blinking
---
Off
Power supply not available or defec-
tive hardware
RUN
Green
On
Processor module is in RUN mode
Blinking
---
Off
Processor module is in STOP mode
ERR
Red/green
On
An error has occurred
Blinking
Flashing fast (4 Hz): Indicates
together with RUN a firmware update
process and a flash EEPROM write.
Off
No errors are encountered or only
warnings (E4 errors). This is configu-
rable (for errors 2 - 4, the LED behav-
iour is configurable.
-
Red/green
On
Reserved
Blinking
Reserved
Off
Reserved
Batt
Red/green
On
TA541 lithium battery is not installed
or is weak
Blinking
---
Off
TA541 lithium battery is installed and
has sufficient capacity
1
Red/green
On
Reserved
Blinking
Reserved
Off
Reserved
2
Red/green
On
Reserved
Blinking
Reserved
Off
Reserved
3
Red/green
On
Reserved
Blinking
Reserved
Off
Reserved
4
Red/green
On
Reserved
Blinking
Reserved
Off
Reserved
5
Red/green
On
Reserved
Blinking
Reserved
Off
Reserved
The processor module can be operated manually using the buttons and switches at the front
panel. Meaning of the buttons and switches:
Buttons and
switches
Device Specifications
Processor Modules > AC500 (Standard)
2019/04/17
3ADR010121, 13, en_US
88