RPM4™ OPERATION AND MAINTENANCE MANUAL

MSGFMT

Purpose

Read or set the type of program command format to use (enhanced or classic).

Command

“MSGFMT mode

 

Query

“MSGFMT?”

 

 

Classic

“MSGFMT= mode

 

 

“MSGFMT”

 

 

Arguments

mode:

 

‘1’ to use the enhanced command format.

 

 

 

‘0’ to use the classic command format.

Defaults

“MSGFMT 0”

 

Remarks

The user can select the type of remote command format to use. This format must agree with the

 

format sent to the RPM4

 

The enhanced query form of this command (“MSGFMT? n”) should always be used to set the

 

desired format, as it will be accepted regardless of the current format (classic or enhanced).

 

It is recommended to use the “L2” and “L3” commands instead of this command for new designs.

Example

Cmd sent:

“MSGFMT 1”

(enhanced)

Query reply:

“1”

(No reply if IEEE-488)

Example

Cmd sent:

“MSGFMT? 1”

(enhanced)

Query reply:

“1”

 

Example

Sent:

 

“MSGFMT=1”

(classic)

Reply:

 

“MSGFMT=1”

Errors

ERR# 6:

Missing or improper program message argument(s).

See Also

“L2 / L3”

 

 

 

4.3, 3.5.2.3

 

 

 

 

 

 

 

NVENTn

 

 

 

 

Purpose

Read or set the status of low (negative) vent valve (Gxxx or BGxxx Q-RPT only)

Command

“NVENTn mode

 

Query

“NVENTn?”

 

 

Classic

“NVENTn= mode

 

 

“NVENTn

 

 

Default

“NVENTn AUTO”

 

Optional Suffix

“n”

The active Q-RPT is assumed if no suffix is given. The “Hi” Q-RPT is assumed if the

 

 

HL Q-RPT is active and no suffix is given.

 

 

‘1’

Specify the Hi Q-RPT

 

 

‘2’

Specify the Lo Q-RPT

Arguments

Mode:

 

’0’

to close the low vent valve.

 

 

 

’1’

to open the low vent valve.

 

 

 

‘AUTO’ for the RPM4 to automatically open and close the low vent valve.

Remarks

Gxxx or BGxxx Q-RPTs each have a low vent valve that is used to vent the TEST(-) port.

 

This valve is normally controlled automatically depending on current RPM4 operation but it can

 

be commanded to open or close using the “NVENT” command.

 

The reply includes two fields. The first indicates the low vent status. The second indicates

 

whether the low vent function is AUTO or MANUAL

Example

Cmd sent:

“NVENT? 0”

(enhanced)

Query reply:

“0, MANUAL

Example

Cmd sent:

“NVENT? AUTO”

(enhanced)

Query reply:

“1, AUTO

Example

Sent:

 

“NVENT=1”

(classic)

Query reply:

“0, MANUAL”

See Also

3.5.7.4

 

 

 

© 2004-2007 DH Instruments, a Fluke Company

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Fluke RPM4 manual NVENTn