Fluke 2620A, 2625A user manual Using the Computer Interface, Computer Interface Command Set

Using the Computer Interface	4
Computer Interface Command Set

Table 4-8. Command and Query Reference (cont)

For temperature functions, the "range" is a thermocouple type (J, K, E, T, N, R, S, B, C) or DIN/IEC 751 RTD (PT).

Use of any other value causes an Execution Error.

<terminals> = 2 (2-terminal) 4 (4-terminal)

FUNC?

IEE

Specification of terminals is necessary when the function type is OHMS or when an RTD temperature measurement is being defined. When this field is called for, a value must be supplied, or a Command Error is generated. Defining a 4-terminal channel (1 through 10) automatically sets the additional channel (11 through 20) to OFF.

If a value is supplied in this field when it is not necessary, a Command Error is generated. An Execution Error is generated if values other than 2 or 4 are used.

Channel Function Query

Return the function for the indicated channel.

FUNC? <channel> <channel> = (0 .. 20)

If the channel indicated is invalid, an Execution Error is generated. For valid channels, two or three comma-separated data fields are returned. One of the following function definitions is returned in the first data field:

TEMP, VAC, VDC, OHMS, FREQ, OFF

For a 4-terminal configuration, two channels are used. For the lower channel, the instrument responds to FUNC? with OHMS or TEMP in the first field. For the upper channel (lower channel +10), the instrument responds with OFF in the first field.

The second data field indicates the range when a function has been chosen. If the channel is set up to autorange, AUTO is returned. If the function is TEMP, the thermocouple/RTD_type is returned in this field. If the function is OFF, there is no range data returned.

If the type is OHMS or RTD-temperature, a third field is included to indicate the number of terminals used. See the Channel Function Definition (FUNC) command for a definition of the data returned for the range and number-of-terminals fields.

Instrument Event Enable

Sets the Instrument Event Enable Register to the given value.

IEE <value>

<value> = (0 .. 255)

This is a mask for the Instrument Event Register and is the first step in determining which conditions may issue an SRQ. The mask selects which conditions may set the Instrument Event Bit of the Status Byte. If the value is not in the range 0 to 255, an Execution Error is generated.

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