User`s manual

Chapter 1
Getting Started with the Agilent E1346A
Using This Chapter
This chapter describes the Agilent E1346A 48-Channel Single Ended Relay
Multiplexer Module, and shows how to program the module using SCPI
(Standard Commands for Programmable Instruments) commands. This
chapter contains the following sections:
• Multiplexer Module Description . . . . . . . . . . . . . . . . . . . . . . Page 11
• Programming the Multiplexer Module . . . . . . . . . . . . . . . . . Page 13
• Initial Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 16
Instrument Definition
Agilent plug-in modules installed in an Agilent mainframe are treated as
independent instruments each having a unique secondary GPIB address.
Each instrument is also assigned a dedicated error queue, input and output
buffers, status registers and, if applicable, dedicated mainframe memory
space for readings or data. An instrument may be composed of a single
plug-in module (such as a counter) or multiple plug-in modules (for a
Switchbox or Scanning Voltmeter Instrument).
Multiplexer Module Description
Refer to Figure 1-1 for the following explanations of the 48-Channel Single
Ended Relay Multiplexer Module.
General Description The multiplexer module provides switching (multiplexing) of up to 48
channels (i.e., channels 00 to 47). Each channel switches only a High (H)
connection. The Low (L) and Guard (G) connections are common for each
channel. The multiplexer module can only close one channel at a time.
The multiplexer module consists of a component assembly and a terminal
block. The channel relay switches are on the component assembly. The
field wiring from user sources connect to the terminal block. The terminal
block also provides connections for multimeters, voltmeters, counters, and
other measuring devices.
Chapter 1 Getting Started with the Agilent E1346A 11