Xantrex Technology XDC SYSTemchannelPOSClear ONOFF01 SYSTemchannelPOSClear?, Command *OPC, *OPC?

Remote Operation

SCPI Commands for Digital Interfaces

Status Byte

The status byte query will return the contents of the status byte register and the MSS (Master Summary Status) message. The response is in the format of a weighted decimal value representing the status byte register and the MSS message (bit 6). Thus, the response to *STB? is identical to the response to a serial poll except that the MSS message appears in bit 5 in place of the RQS message. (See “Status Byte” on page 155 for details.)

Command: *STB?

SCPI equivalent:

STATus:SBYTe[:EVENt]?

Power-on Status Clear

The Power-On Status Clear command controls the automatic power-on clearing of the Service Request Enable Register, the Standard Event Status Enable Register, the Parallel Poll Enable Register and the Error/Event Queue.

Command: *PSC {01}, *PSC?

SCPI equivalent for multichannel use:

SYSTem[<channel>]:POSClear {ONOFF01}

SYSTem[<channel>]:POSClear?

Individual Status Query

The individual status query allows the programmer to read the state of the IEEE

488.1ist (individual status) message without performing a parallel poll. The query returns a "1" or "0."

The ist message is formed by ANDing the bits in the Parallel Poll Enable Register (*PRE) with the Status Byte and then ORing the result. In other words, the ist is TRUE if any of bits of the Parallel Poll Enable Register AND'ed with the Status Byte are TRUE.

Command: *IST?

Operation Complete

The Operation Complete command causes the power supply to generate the operation complete message in the Standard Event Status Register when all pending operations have been finished.

Command: *OPC, *OPC?

160 Operating Manual for XDC Series Power Supply