Fluke 5790A, Руководство оператора

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Remote Operation
The IEEE-488 Connector
5
5-27
2000 REM Wait for a 5790A command to complete, polling the ESR
2010 PRINT @A%, "*OPC"
2020 PRINT @A%, "*ESR?"
2030 INPUT @A%, ES%
2040 IF ((ES% AND 1%) = 0) GOTO 2020
2050 RET
5-55. The IEEE-488 Connector
The IEEE-488 connector on the rear panel mates with an IEEE-488 standard cable. The
pin assignments of the rear-panel IEEE-488 connector are shown in Figure 5-5.
Table 5-6. Functional Elements of Commands
Element Function
PROGRAM MESSAGE
A sequence of zero or more PROGRAM MESSAGE UNIT
elements separated by PROGRAM MESSAGE UNIT
SEPARATOR elements
PROGRAM MESSAGE UNIT
A single command, programming data, or query received by the
device.
COMMAND MESSAGE UNIT A single command or programming data received by the device.
QUERY MESSAGE UNIT A single query sent from the controller to the device.
PROGRAM DATA Any of the six program data types.
PROGRAM MESSAGE UNIT
SEPARATOR Separates PROGRAM MESSAGE UNIT elements from one
another in a PROGRAM MESSAGE.
PROGRAM HEADER SEPARATOR Separates the header from any associated PROGRAM DATA.
PROGRAM DATA SEPARATOR
Separates sequential PROGRAM DATA elements that are
related to the same header
PROGRAM MESSAGE TERMINATOR Terminates a PROGRAM MESSAGE.
COMMAND PROGRAM HEADER
Specifies a function or operation. Used with any associated
PROGRAM DATA elements.
QUERY PROGRAM HEADER
Similar to a COMMAND PROGRAM HEADER except a query
indicator (?) shows that a response is expected from the
device.
CHARACTER PROGRAM DATA
A data type suitable for sending short mnemonic data, generally
used where a numeric data type is not suitable. ("String" in this
manual.)
DECIMAL NUMERIC PROGRAM DATA
A data type suitable for sending decimal integers of decimal
fractions with or without exponents.