SimplySNAP BMS Gateway/ProtoAir Start-up Guide
Page 34 of 52
Appendix A.4 LED Diagnostics for Communications Between ProtoAir and Devices
See the diagram below for ProtoAir FPA-W44 LED Locations.
Tag
Description
SS
The SS LED will light if the unit is not getting a response from one or more of the configured devices.
ERR
The SYS ERR LED will go on solid indicating there is a system error. If this occurs, immediately report
the related “system error” shown in the error screen of the FS-GUI interface to support for evaluation.
PWR
This is the power light and should always show steady green when the unit is powered.
TX
The TX LED will flash when a message is received on the serial port on the 3-pin connector.
If the serial port is not used, this LED is non-operational.
TX1 applies to the R1 connection while
TX2 applies to the R2 connection.
RX
The RX LED will flash when a message is sent on the serial port on the 3-pin connector.
If the serial port is not used, this LED is non-operational.
RX1 applies to the R1 connection while
RX2 applies to the R2 connection.
Figure 31: Diagnostic LEDs
FPA-W44
Diagnostic LEDs