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Strain Gage Register-Based Programming
About This Appendix
Note
Appendix D
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The HP E1355A - HP E1358A Relay and FET Strain Gage Multiplexers are
register-based modules which do not support the VXIbus word serial
protocol. When an SCPI command is sent to the multiplexer (switchbox),
the HP E1300/E1301 Mainframe (Series B) or the HP E1405/E1406
Command Module (Series C) parses the command and programs the
multiplexer at the register level. When the strain gage multiplexers are used
with the HP E1326B/E1411B Multimeter (which is also register-based),
SCPI commands are parsed by the mainframe/command module and are
written to the multimeter registers.
Register-based programming is a series of reads and writes directly to the
multiplexer (or multimeter) registers. This increases throughput speed since
it eliminates command parsing and allows the use of an embedded
controller. Also, if slot 0, the resource manager, and the computer interface
(HP-IB) are provided by other devices, a C-size system can be downsized
by removing the command module.
This appendix contains the information you need for register-based
programming. The contents include:
•
Register Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 120
•
Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 123
•
Relay Multiplexer Registers . . . . . . . . . . . . . . . . . . . . . . . . . Page 123
•
FET Multiplexer Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . Page 126
•
Programming Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 133
This appendix covers relay and FET multiplexer register-based
programming from a multiplexer switchbox standpoint. Register-based
programming for scanning multimeter instruments (multimeters and
multiplexers in a single instrument) is covered in the HP E1326B/E1411B
Multimeter User's Manual.
Strain Gage Register-Based Programming
Appendix D
119
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