Fluke Hydra Series II User Manual page 165

CheckResponse:
' CHECKRESPONSE Subroutine
' This subroutine checks the Hydra prompt after sending a command to
' Hydra, to see if an error occurred
' The possible responses are:
' "=>(CR)(LF)"
' "?>(CR)(LF)"
' "!>(CR)(LF)"
PROMPT$ = INPUT$(4, #1)
IF INSTR(1, PROMPT$, "=>") <> 0 THEN RETURN
IF INSTR(1, PROMPT$, "?>") <> 0 THEN
PRINT "Command Syntax Error!"
ELSEIF INSTR(1, PROMPT$, "!>") <> 0 THEN
PRINT "Command Execution Error!"
END IF
PRINT "Program execution halted due to communications errors"
END
(command successful)
(command syntax error)
(command execution error)
Figure 4-6. Sample Program (QBASIC) (3 of 3)
Computer Operations
Computer Interface Commands and Operation
' Get prompt
'Command successful
4
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