Instruction manual

9. Command : STAT? <EOS>

Description: Read Status Query.

Function: This command reads the status of various events occurred in the

system. The definition of events is given below

B0: Over voltage Trip

B1: Over Temperature Trip

B2: Power On event (Sets when unit is turn ON. The bit gets cleared after the

quarry.)

B3: Internal Failure

B4: Always 1 (THIS STATUS BIT MAY BE CHANGED IN FUTURE)

B5: Always 1 (THIS STATUS BIT MAY BE CHANGED IN FUTURE)

B6: Command Error (Sets if invalid command received by unit. The bit gets

cleared after the quarry.)

B7: Always 0

The response to the quarry is single character followed by EOS.

For example after power On condition the response to the quarry

STAT?

Will be

4<EOS>. If Over voltage trip condition occurs then the response will be

1<EOS>.

6.4

IEEE-488 OPERATION:

The IEEE-488 (GPIB) interface option allows the instrument to connect and

form part of an Automated Test System. The instruments are instructed over a

Parallel Data Bus, so that their facilities can be selected remotely. The ADDRESS

concept, Parallel Data Bus and Handshaking are the main advantages over the

RS23C interface, by which at a time more than one instrument (up to 31 instru-

ments) can be connected on the IEEE-488 bus and only the Addressed instrument

can be made to LISTEN or TALK without losing any data. The communication will

be faster because of parallel data transfer.

The IEEE-488 bus has standard 24 PIN flat cable, in which each line is

dedicated to a special BUS activity. The CONTROLLER can send messages or

receive responses from all or any one instrument by proper BUS activation and

handshaking.