user manual
Table Of Contents
- 45 Dual Display Multimeter
- 1. Introduction
- 2. Getting Started
- 3. Operating the Meter From the Front Panel
- 4. Applications
- 5. Operating the Meter Using the Computer Interface
- Introduction
- Preparing the Meter for Operations via the RS-232 Interface
- Preparing the Meter to be Operated via IEEE-488 Interface
- Getting Started With An Installation Test
- How the Meter Processes Input
- How the Meter Processes Output
- Triggering Output
- Service Requests (IEEE-488 Only and Status Registers
- Computer Interface Command Set
- IEEE-488 Capabilities and Common Commands
- Function Commands and Queries
- Function Modifier Commands and Queries
- Range and Measurement Rate Commands and Queries
- Measurement Queries
- Compare Commands and Queries
- Trigger Configuration Commands
- Miscellaneous Commands and Queries
- RS-232 Remote/Local Configurations
- Sample Program Using the RS-232 Computer Interface
- Sample Programs Using the IEEE-488 Computer Interface
- 6. Maintenance
- Appendices
Operating the Meter Using the Computer Interface
How the Meter Processes Input
5
5-9
• RULE 2: READ QUERY RESPONSES BEFORE SENDING ANOTHER
COMMAND STRING.
Output data remains available in the output buffer until it is read by the host or until
the next command string is received by the meter. This means the meters output
buffer must be read by the host before, rather than after, the next command string is
sent to the meter.
• RULE 3: THE METER EXECUTES EACH COMMAND COMPLETELY, IN THE
ORDER RECEIVED, BEFORE MOVING ON TO THE NEXT
COMMAND.
If an input string contains a trigger, enter the commands in the following order, that
is, from left to right, as written:
1. Commands to configure the meter (if any).
2. The trigger command.
3. Commands to read the result of a triggered measurement (VAL?), or to recon-
figure the instrument (if any).
4. The terminator.