18
BAS-SVP09F-EN
LEDs and Switches
Table 1. Interpreting the LEDs and switches
LED type
LED activity
Indicates...
Service LED
Solid green
The controller is in boot mode. The controller will be
placed into boot mode if the service pin is held in when
power is applied. In boot mode, the controller is non-
operational and is waiting for a new main application to
be downloaded. While in boot mode, the system will not
run any applications.
Not illuminated
Application code is running; operating normally
Status LED
Solid green
Normal operation
Blinking green
The controller is updating the flash
Solid red
The controller has malfunctioned
Blinking red
Alarms or point faults are present
Not illuminated
The controller is off
Link Tx/Rx
TX blinks green
Data is being transferred, received, or transmitted
RX blinks yellow
Blinks at the data transfer rate when the unit receives
data from other devices on the link
•
ON solid yellow
; indicates there is reverse polarity
Not illuminated
No activity is occurring
Modbus Tx/Rx
Blinking
Data is being transferred, received, or transmitted
Not illuminated
No activity is occurring
Link LEDs
BACnet is illuminated
The Link Switch has been set to wired communication
IMC is illuminated
The Link Switch has been set to wireless communication
Switch/Button type
Purpose
Link Select Switch
Use this switch to select wired communication (BACnet) or wireless communication (IMC)
Service Button
Press this button and restart the controller to run the boot code
Rotary Switches
Use these switches to set unique MS/TP rotary switch values
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