AC Power Supply PCR-LE series

AC Power Supply PCR-LE2 series

AC Power Supply PCR-M series

Commnunication Interface Mannual


 

Tutorial

Status Monitoring

The PCR has two mandatory SCPI standard registers, STATus:OPERation and STATus:QUEStionable, in addition to the IEEE488.2 standard registers.

Register basics

All SCPI registers have standard event/filter architecture, employing CONDition, EVENt, ENABle, and optionally PTRansition and NTRansition. CONDition and EVENt are read-only registers working as status indicators, and ENABle, PTRansition and NTRansition are read-write registers working as event and summary filters.

STATus:OPERation

The STATus:OPERation register records events or signals that occur during normal operation.

For example, to check if the PCR is being regulated in CV state, check the CV bit (bit 8) on the STATus:OPERation register.

:STATus:OPERation?    'Check whether the CV bit is set

STATus:QUEStionable

The STATus:OPERation register records events or signals that occur during normal operation.

For example, to check if the PCR is being regulated in CV state, check the CV bit (bit 8) on the STATus:OPERation register.

:STATus:QUEStionable?    'Check whether the CV bit is set

Status Monitoring

STATus:OPERation

The OPERation Status register is used to record events and notifications that occur during normal operations.

To check whether CV output is being performed, check the CV bit (bit 8) of the OPERation:INSTrument:ISUMmary{1|2|3} subregister.

{1|2|3}の1はU相、2はV相、3はW相です。

:STAT:OPER:INST:ISUM2? 'Check whether the CV bit of V phase is set.

STATus:QUEStionable

The QUEStionable Status register is used to record events and notifications that occur during abnormal operations.

To check whether the overvoltage protection function has been activated, check the OV bit (bit 0) of the STATus:QUEStionable register.

:STAT:QUES? 'Check whether the OV bit is set.

Even if bit 0 is true, you can not tell on which phase the overvoltage protection function has been activated. To check which phase is operating abnormally, check the STATus:QUEStionable:INSTrument subregister.

:STAT:QUES:INST? 'Check which phase is operating abnormally.

All phases whose corresponding bits are true are operating abnormally. You can determine how the specified phase is operating abnormally by checking the STATus:QUEStionable:INStrument:ISUMmary{1|2|3} subregister of the phase.

{1|2|3}の1はU相、2はV相、3はW相です。

:STAT:OPER:INST:ISUM2? 'Check whether the OV bit of V phase is set.

PON (Power ON ) bit

The PON bit (bit 7) in the event status register is set whenever the PCR is turned on. The most common use for the PON bit is to generate an SRQ at power-on to keep track of unexpected loss of power or power line failure. To do this, follow the steps shown below.

1.   Set *PSC (Power-on Status Clear) to 0 (or OFF).

Enable the backup function of the event status enable register and service request enable register (*PSC 0).

2.   Set the PON bit (bit 7) of the event status enable register.

Permit the transmission of a power-on event to the upper layer (*ESE 128).

3.   Set the ESB bit (bit 5) of the status byte enable register.

Permit the generation of an SRQ caused by a standard event (*SRE 32).

 

*PSC 0;*ESE 128;*SRE 32

When using the RS232C interface, the PON bit cannot be assigned to the service request, because SRQs are not generated.

Though the SRQ feature itself is provided by communication protocol on the USB interface or LAN (VXI-11/ HiSLIP) interface, a Connection Lost error in the VISA I/O session occurs immediately before the power-on event. It may be difficult to handle PON events when using the USB interface.

>top

Command (function search)

Command (ABC search)

Command (Sub-system search)

Register

Appendix

Tutorial

AC power supply  PCR-M seriesAC Power Supply PCR-LE series
Communication Interface Manual

AC power supply  PCR-M seriesAC Power Supply PCR-LE2 series
Communication Interface Manual

AC power supply  PCR-M seriesAC Power Supply PCR-M series
Communication Interface Manual