Why is my MPU run light not lit?
is there a solid Rx and/or Tx light on serial port 1?
Remove connections to both serial ports, if the light stays on
this means that the WS1000 has failed its powerup diagnostics.
A solid Rx
light is a fatal ROM error
Solid Tx light
is a fatal RAM error.
These failures cannot be repaired in the field and must be returned
to Westronic for repair through the RMA process.
Why is the Rx on solid while the other LEDs are flashing?
Check for crossed connections, specifically the polarity on the
is the Tx on solid while the other LEDs are flashing?
Check for crossed connections, specifically the polarity of the
does the Rx of port 1 and the Tx of port 2 flash, but I have no
response from the RTU?
make sure the TABS/TBOS address is set for the right address.
RS422/485 termination is correct using switches 9 and 10.
Check all connections
for reversed leads and polarity.
If using an internal modem check the receive sensitivity and transmit