Moderator Thermocouple test rig: read from PLC

The moderator team would like to calibrate their thermocouples by measuring a voltage while logging the temperature of an orange cryostat for many temperature points. This is currenly done manually, however WISH did a similar calibration using IBEX entirely and running a script (voltage was read through a lakeshore, other sensors eurotherm). The moderator team would need to read from a PLC for this, it is a Omron NX-102 using OPCUA

## Acceptance criteria

- db file created for relevant items in PLC
- script written (based on WISH one potentially)