Experimental Physics and
Industrial Control System

Bonnie Montjar <[email protected]> · Fri, 06 Oct 1995 17:05:40 EDT

Wondering if anyone else found this:

I am using the XYCOM 240 board configured for 32 inputs (ports 0,1,2,3) and
32 outputs (the rest).  I've loaded the card into test crate with an
ioc (162), and set up my database to have it read data bits on the first
two ports.  Well, when I checked it by poking the hardware, where I
thought it should drive the bit low, I got no response (ports 0&1), 
but when I tried the same thing on what, according to the XYCOM 240
manual, are ports 2&3, I got little red lights all over the screen!
Anybody else run into this? 

Here's the wierd part - my hardware addresses say the database is looking
at the data bits in ports 0 & 1, but....  Have I been sitting in front
of a radiation-producing terminal too long?  Am I missing something
really obvious?

--
Bonnie Madre 

ANALOG ADDRESS:
The Continuous Electron Beam Accelerator Facility (CEBAF)
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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System