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Programming Manual Lx \ Ls Series II

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8.7 MIL-STD 704 Rev A - F (-704F)

The following are the remote commands available for the –704F test option. There are two

firmware options available for MIL-STD 704 testing,the –704 option and the -704F option:

Option –704 covers revisions D through F and matches the traditional implementation

used on other California Instruments AC power sources. This mode provides shorted test

times but does not follow the test protocols that were published with revision F in 2004.

This option uses SCPI command syntax prefix MIL704 and is covered in this chapter.

Option –704F covers revisions A thorugh F and does follow the new test protocol

guidelines published in 2004. The –704F option uses SCPI command syntax prefix

MS704 and is covered in chapter 8.7.

The MS704 commands may be used to access the –704F option standard implementation on the

Ls/Lx Series. All commands for this option have a “MS704” prefix instead of the “MIL704” prefix

used for the legacy –704 option. The –704F option implementation goes beyond the legacy

implementation used for revisions D and E of the MIL-STD 704 and incorporates all revisions from

A through F.

Note: The –704F was released with revision 1.00 of the Lx/Ls firmware. If your unit has a version

prior to this release, the MS704 commands will not be available. A firmware update will be

required to use this mode. Visit www.programmablepower.com for update information.

The advanced version not only covers test levels, it also implements the recommended test

sequences to use as outlined in the new revision F Mil-Std document. This implies that the test

times are considerably longer than was the case before. For abbreviated tests, use the MIL704

command set documents in section 8.6.

The ABORt command will terminate the test in progress at any time. See the Lx / Ls Series II

User Manual (P/N 7004-980) for more details about the implementation of each 704 test step.

The–704 option as implemented on the Lx/Ls Series only supports AC power applications. DC

mode is not available on the Lx/Ls Series so no DC tests are provided in the –704 option.

Note that most of the MS704 commands do accept parameters or have a query format except

where indicated in the table.

Command

Parameters

MS704:VERSion

A, B, C, D, E or F

MS704:GROup

SAC, SVF, SXF, TAC, TVF

MS704:FREQuency

MS704:STEP

SINGle or CONTinous

MS704:TEST:CONDition

A letter form A to Z or AA to ZZ function of test.

Programming Considerations

Several of the MIL-STD 704 test steps take considerable time to execute. (Refer to Lx/Ls User

Manual P/N 7004-980 for approximate test times. The *OPC command may be used to set the

OPC bit in the Event Status Register upon command completion. The Event Status Register OPC

bit can be enabled through the appropriate enable register to generate an SRQ if GPIB is used.

Alternatively, the *OPC? query commend can be used to poll for completion of the MIL704

command.

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