Table of Contents
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Using This Chapter
Instrument Definition
Matrix Description
Chapter 1
This chapter includes an HP E1361A Relay Matrix description, addressing
guidelines, and an example program to check initial operation. Chapter
contents are:
•
Instrument Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
•
Matrix Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
•
Programming the Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 13
•
Initial Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 15
HP plug-in modules installed in an HP mainframe are treated as
independent instruments each having a unique secondary HP-IB 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).
The HP E1361A 4 X 4 Relay Matrix module is a B-Size VXIbus and
VMEbus register-based product which can be used for matrix switching or
scanning. The matrix can operate in a B-Size VXIbus or VMEbus
mainframe or (with an adapter) in a C-Size VXIbus mainframe.
The relay matrix consists of 16 latching relays (channels 00 through 15).
The module is factory-configured as a 4 X 4 matrix. By removing jumpers,
you can configure the module into a dual 4 X 2 matrix arrangement.
For the matrix, switching consists of closing a specified channel relay to
provide row and column connections. Scanning consists of closing a set of
relays, one relay at a time. You can open or close any combination of relays.
Chapter 1
Getting Started
Getting Started 11
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