This page describes the device driver and the device window for the Mirad VPC Switching System a waveguide switch controller and Variable Power Combiner The driver was tested with the 2-way Ka-Band VPC System:
Beside device parameter and fault monitoring it allows to set the phase shifter and switch positions as well as starting a reference run.
Device window pages
The following table shows which device window pages are available with this individual device type.
--- The switch control unit
--- The faults page.
--- The device info page.
--- The maintenance page. The configuration parameters described below are set at this page.Configuration parameters
At the maintenance page of the device window there are a couple of configuration parameters which must be set to make the software talk to the unit.
| parameter | description |
|---|---|
| address | The device address (decimal) as set at the device's front panel. |
| Serial | Remember to set the line parameters for the serial interface |
Remote Control
Variables defined by this device driver
| name | type | flags | range |
|---|---|---|---|
| info.driver | TEXT | R/O | StringRange R/O |
| lowLevel.cmd | TEXT | StringRange | |
| lowLevel.reply | TEXT | R/O | StringRange R/O |
| faults.99 | ALARM | R/O | AlarmFlagRange R/O (Communication) |
| faults.commstat | TEXT | R/O | StringRange R/O |
| info.type | TEXT | R/O | StringRange R/O |
| info.port | TEXT | R/O | StringRange R/O |
| info.frame | TEXT | R/O | StringRange R/O |
| config.readBackDelay | INTEGER | SAVE SETUP | IntegerRange (100 .. 10000) |
| vpc | CHOICE | EnumRange (UNKNOWN MANUAL 1+1 A 1+1 B COMBINING) | |
| vpcState | CHOICE | EnumRange (FLT A A+B B LOAD) | |
| switch.01 | CHOICE | EnumRange (A B) | |
| switch.02 | CHOICE | EnumRange (A B) | |
| switch.03 | CHOICE | EnumRange (A B) | |
| switch.04 | CHOICE | EnumRange (A B) | |
| switch.05 | CHOICE | EnumRange (A B) | |
| opMode | CHOICE | R/O | EnumRange R/O (LOCAL LOCAL+REMOTE LOCAL) |
| detector | FLOAT | R/O | DoubleRange R/O (0.0 .. 0.0) |
| phasePos | INTEGER | IntegerRange (0 .. 10000) | |
| maxPhasePos | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| refRun | TEXT | NOPRESET | StringRange |
| faults.01 | ALARM | R/O | AlarmFlagRange R/O (Remote access) |
| faults.02 | ALARM | R/O | AlarmFlagRange R/O (Phase Shifter Ref) |
| faults.03 | ALARM | R/O | AlarmFlagRange R/O (Power Fail since Ref) |
| faults.04 | ALARM | R/O | AlarmFlagRange R/O (Phase Shifter Moving) |
| faults.05 | ALARM | R/O | AlarmFlagRange R/O (Phase Shifter Low Limit) |
| faults.06 | ALARM | R/O | AlarmFlagRange R/O (Phase Shifter High Limit) |
| faults.11 | ALARM | R/O | AlarmFlagRange R/O (Switch 1) |
| faults.12 | ALARM | R/O | AlarmFlagRange R/O (Switch 2) |
| faults.13 | ALARM | R/O | AlarmFlagRange R/O (Switch 3) |
| faults.14 | ALARM | R/O | AlarmFlagRange R/O (Switch 4) |
| faults.15 | ALARM | R/O | AlarmFlagRange R/O (Switch 5) |