Pamux User’s Guide 7
WELCOME
Opto 22’s Pamux system provides low-cost, high-speed distributed control of both digital and analog I/O.
A Pamux system can span up to 500 feet and can support up to 32 stations with a total of up to 512 I/O
points.
This manual provides all the information you will need to set up and use a Pamux system. It features
complete descriptions of all Pamux components, including the B4, B5, and B6 brain boards and the AC28
and AC36 adapter cards. It provides detailed instructions on setting up a Pamux system and
programming the system with or without Opto 22’s Pamux software driver. Several handy appendices at
the back of the manual feature troubleshooting procedures and general tips, hardware specifications,
frequently asked questions, a glossary of terms, and information on Opto 22 Product Support.
Note: Information in this manual relating to Pamux brain boards applies only to the revisions of the brain boards
indicated below:
• AC28: Revision C or later. For revision B or earlier, request Opto 22 form #218.
• B4: Revision L or later. For revision K or earlier, request Opto 22 form #127.
• B5: Revision J or later. For revision I or earlier, request Opto 22 form #145.
• B6: Revision G or later. For revision F or earlier, request Opto 22 form #154.
ABOUT THIS MANUAL
This manual is organized as follows:
• Chapter 1: Introduction — Overview of the Pamux system, with descriptions and
illustrations of all Pamux components: AC28, AC36, B4, B5, B6, TERM1, TERM2, and UCA4.
• Chapter 2: System Setup — Everything you need to know to design and construct a Pamux
system. Includes details on laying out a system, setting up Pamux stations, connecting field
wiring, connecting stations to the bus to form a system, powering the system, linking to an
adapter card, and connecting field wiring.
• Chapter 3: Programming with the Pamux Driver — Complete information on how to use
Opto 22’s Pamux software driver, designed for use on a PC with an AC28 or AC36 adapter card.
Covers installation of the driver under DOS or Windows, provides a complete command
reference for use under both platforms, and includes examples of programming code.
• Chapter 4: Programming without the Pamux Driver — Details on all issues that must be
addressed when communicating with Pamux without using the Pamux driver. Provides
descriptions of the Pamux bus layout and timing, plus detailed information on how to read
from and write to digital and analog Pamux stations. Includes extensive programming
examples.
WELCOME
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