This page describes the device driver and the device window for the CPI 350W CMPA amplifier. This type does not work with the standard CPI-TWTA device driver. Unlike the recent amplifier models from CPI, this type expects the attenuation as a (PIN) voltage parameter rather than as a attenuation expressed in dB.
Device window pages
The following table shows which device window pages are available with this individual device type. Tool-bar functions not mentioned here are described at the general description of device windows .
--- The operational parameters (BEAM-ON/STANDBY, RF ON/OFF)
--- Displays meter readings like output power and TWT specific measurements.
--- 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 Amplifier.
| parameter | description |
|---|---|
| address | The device address (decimal). The factory default is 48 |
| checkLimits | Turns the amplifier's built in power limit check off or on. When turned on, the amplifier generates a fault if the output power is outside the limits set below. |
| lowLimit | The low output power limit. |
| highLimit | The high output power limit. |
| pinVoltage | The voltage to applied at the pin diode attenuator which is built into the CMPA |
| Serial | Remember to set the line parameters for the serial interface connected to the TWTA. The factory default of the HPA is 9600,E,7,1 . |
| helixAdvWarning | Sets the advanced helix current warning level. Not monitored if 0 |
| deviceComment | An optional text entered here appears as an addition to the tooltip which is shown while the mouse is placed over a device icon in the GUI. The "\n" character sequence is translated into a newline character, splitting the text into multiple lines. |
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 |
| info.revision | TEXT | R/O | StringRange R/O |
| info.signal.on | BOOLEAN | R/O | BooleanRange R/O (true false) |
| config.checkLimits | CHOICE | SAVE SETUP | EnumRange (OFF ON) |
| config.lowLimit | INTEGER | SAVE SETUP | IntegerRange (0 .. 1000) |
| config.highLimit | INTEGER | SAVE SETUP | IntegerRange (0 .. 1000) |
| config.pinVoltage | FLOAT | SAVE SETUP | DoubleRange (0.00 .. 20.00) |
| config.readBackDelay | INTEGER | SAVE SETUP | IntegerRange (100 .. 10000) |
| config.helixAdvWarning | INTEGER | SAVE SETUP | IntegerRange (0 .. 0) |
| config.deviceComment | TEXT | SAVE SETUP | StringRange |
| tx.on | CHOICE | EnumRange (OFF ON) | |
| tx.beam | CHOICE | EnumRange (STANDBY ON) | |
| reset | TEXT | NOPRESET | StringRange |
| state | TEXT | R/O | StringRange R/O |
| tx.measuredLevel | FLOAT | R/O | DoubleRange R/O (0.0 .. 60.0) |
| meas.fwdPwr | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| meas.refPwr | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| meas.iHelix | FLOAT | R/O | DoubleRange R/O (0.0 .. 0.0) |
| meas.uHelix | FLOAT | R/O | DoubleRange R/O (0.00 .. 0.00) |
| internal.dummy | FLOAT | R/O | DoubleRange R/O (0 .. 0) |
| internal.summ | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| internal.bsl | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| internal.lcl | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| internal.sta2 | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| internal.sec1 | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| internal.sec2 | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| internal.flt1 | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| internal.flt2 | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| internal.flt3 | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| internal.flt4 | INTEGER | R/O | IntegerRange R/O (0 .. 0) |
| faults.01 | ALARM | R/O | AlarmFlagRange R/O (Summary) |
| faults.02 | ALARM | R/O | AlarmFlagRange R/O (Remote access) |
| faults.05 | ALARM | R/O | AlarmFlagRange R/O (High RF (alarm)) |
| faults.06 | ALARM | R/O | AlarmFlagRange R/O (Low RF (alarm)) |
| faults.07 | ALARM | R/O | AlarmFlagRange R/O (Power fail timeout) |
| faults.08 | ALARM | R/O | AlarmFlagRange R/O (Helix over voltage) |
| faults.09 | ALARM | R/O | AlarmFlagRange R/O (Helix under voltage) |
| faults.10 | ALARM | R/O | AlarmFlagRange R/O (Helix avg. over current) |
| faults.11 | ALARM | R/O | AlarmFlagRange R/O (Power supply arc trip) |
| faults.12 | ALARM | R/O | AlarmFlagRange R/O (DC buss under voltage) |
| faults.13 | ALARM | R/O | AlarmFlagRange R/O (Helix voltage in standby) |
| faults.14 | ALARM | R/O | AlarmFlagRange R/O (Reflected RF) |
| faults.15 | ALARM | R/O | AlarmFlagRange R/O (Cover interlock) |
| faults.16 | ALARM | R/O | AlarmFlagRange R/O (TWT thermal interlock) |
| faults.17 | ALARM | R/O | AlarmFlagRange R/O (High RF) |
| faults.18 | ALARM | R/O | AlarmFlagRange R/O (Low RF) |
| faults.19 | ALARM | R/O | AlarmFlagRange R/O (External interlock) |
| faults.21 | ALARM | R/O | AlarmFlagRange R/O (SSIPA over current) |
| faults.22 | ALARM | R/O | AlarmFlagRange R/O (Helix advance warning) |
| faults.26 | ALARM | R/O | AlarmFlagRange R/O (Standby) |