Ascon tecnologic AC3nP, Installation Manual

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Chapter 2 - Hardware Description
17
2-2-3 Diagnostic LEDs
The tables that follow describe in detail LED functions and behaviours ( Note 1 ).
LED Colour Action (note 1) Description
PWR Blue ON Power Supply present
RUN LED while normal CPU or Bootloader operations
RUN
Green
OFF PLC Program stopped or not present
ON PLC Program running
Blinking Telnet Watch Monitor session active
Flickering Telnet Configuration session active
Single flash Bootloader - Work in progress
Double flash Bootloader - Operations result OK
Triple flash Bootloader - Operations result KO
MSG
LED while normal CPU or Bootloader operations
MSG Red
OFF No Errors - Firmware present
ON Firmware not present
Blinking Backup battery low
Flickering Flash File System error
Single flash Checksum error in RETAIN data
Double flash Calibration file error
Triple flash Configuration error (Reset to Factory Default)
USB
LED while normal CPU or Bootloader operations
USB
White
OFF Reserved
ON USB Host key present
Blinking Access to USB key
Flickering File transfer active
Single flash Wait for PB button to USB files management
Double flash Reserved
Triple flash Reserved
COMS LED while normal CPU or Bootloader operations
COMS
Green
OFF Reserved
ON Bootloader - USB host
Blinking Bootloader - TFTP with IP as Factory default
Flickering Bootloader - TFTP with customer’s IP
Single flash COM1 data traffic
Double flash COM2 data traffic
Triple flash COM1 and COM2 data traffic