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

2620A, 2625A

Users Manual

Table 4-6. Instrument Event Register (IER)

Note

Whenever the Instrument Event Register is read, the condition bits are cleared.

This register is used in conjunction with the Instrument Event Enable Register to determine the conditions under which the Instrument Event Bit of the Status Byte is set.

Bit

0

1

Name

ALT

TOB

Description

Alarm Limit Transition. Set high (1) when any measurement value has transitioned into or out of alarm. Alarms are defined through the front panel or the computer interface (ALARM_LIMIT). This bit is cleared when alarms or review values are cleared.

Totalize Overflow. Set high (1) when the Totalizer overflows (>65,535). This bit is cleared when the Totalizer is zeroed from the front panel or set to some other non-overflow value (<65,535) with the computer interface TOTAL command.

2

3

OTC

CCB

Open Thermocouple. Set high (1) when open thermocouple checking is enabled and any thermocouple channel is measured with a source impedance greater than 1 to 4 kilohms.

Calibration Corrupted. Set high (1) when the instrument calibration data is corrupted. When a calibration data check shows a corruption of calibration data, the calibration alarm bit remains set in the Instrument Status Register until the instrument is recalibrated.

4

5,6

7

CNC

not used

SCB

Configuration Corrupted. The instrument configuration stored in NVRAM has been found to be corrupted. The RAM CRC is no longer valid.

Scan Complete. Set high (1) when a measurement scan has been completed.

Computer Interface Command Set

Generally, RS-232 and IEEE-488 commands are identical. A few exceptions apply only when the RS-232 interface is active.

See Table 4-7 for a summary of computer interface commands and queries. A detailed description of each command or query can be found in Table 4-8. (alphabetically arranged.)

Note

Computer interface command descriptions use angle brackets (< >) to denote a parameter that must be supplied by the user or a string that is returned by the instrument.

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