Siemens ProtoAir Start-up Guide
Page 32 of 66
Appendix A.3 Checking Wiring and Settings
•
No COMS on Modbus RTU side. If the Tx/Rx LEDs are not flashing rapidly then there is a COM
issue. To fix this, check the following:
o
Visual observations of LEDs on ProtoAir (
o
Check baud rate, parity, data bits, stop bits
o
Check Detector ID matches the correct device
o
Verify wiring
o
Verify the device was listed under the Web Configurator Active Profiles (
•
Field COM problems:
o
Visual observations of LEDs on the ProtoAir (
o
Verify IP Address setting
o
Verify wiring
NOTE: If the problem still exists, a Diagnostic Capture needs to be taken and sent to technical
support. (