Siemens ProtoAir Start-up Guide
Page 33 of 66
Appendix A.4 LED Diagnostics for Communications Between ProtoAir and Devices
See the diagram below for ProtoAir 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 26: Diagnostic LEDs
Diagnostic LEDs