I am trying to work with a single channel Thermocouple PR55-3 connected to Ethernet Modem PR55-17b. I can connect to the modem both in Comm Operator and Alpha, but the thermocouple seems to be sending bad data… Under Comm Operator, it shows a power-up frame but then doesn’t receive the interval readings. When running Alpha under vs2017 debug I see “ERROR HEADER REJECTION:-1” at intervals in the debug output. I can get an accurate reading from the thermocouple if I hit the reset button inside of the housing but it does not give subsequent readings until hitting the reset again. I have been through much of the documentation but I can not seem to nail down the issue. Here is a paste of more debug output from vs2017:
READ IDENTITY
Reading EEPROM:
254
50
3
64
31
End Reading EEPROM
Exception thrown: 'System.Exception' in NCDEnterprise.dll
Exception thrown: 'System.Exception' in NCDEnterprise.dll
Exception thrown: 'System.NullReferenceException' in Alpha Station.exe
READ IDENTITY FINISHED
EXIT READ SETTINGS
Read Activation...........................................................................
Device Activated Function Call
Reading EEPROM:
254
52
30
48
16
End Reading EEPROM
Exception thrown: 'System.Exception' in NCDEnterprise.dll
Exception thrown: 'System.Exception' in NCDEnterprise.dll
The thread 0x4dbc has exited with code 0 (0x0).
STALL: 1
.................................GET DESTINATION HIGH FINISHED
Timer Start ------------
Exception thrown: 'System.Exception' in NCDEnterprise.dll
Exception thrown: 'System.Exception' in NCDEnterprise.dll
---------------------ERROR HEADER REJECTION:-1
------------ Timer Stop
Timer Start ------------
Exception thrown: 'System.Exception' in NCDEnterprise.dll
Exception thrown: 'System.Exception' in NCDEnterprise.dll
---------------------ERROR HEADER REJECTION:-1