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HP Forum Archive 19

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Newbie w/ Relay Actuator on HP-IL with 71B
Message #1 Posted by Miles Willmek on 13 June 2010, 12:07 p.m.

I have been trying trial and error to figure out commands to control an Air Therm ATC-0010 relay device connected by HP-IL to my 71B. I have searched the web but can't find any documentation. Does anybody have any experience with this device or something similar?

It is the only other device on the loop. RESTOREIO is successful and DEVID$(1) returns "HP82166A". I have tried sending some strings like OUTPUT:1,"A1" and the device seems to respond, but not as expected (channels 2 + 4 seem to come on whatever i send). ENTER:1,A$ always just times out.

I would appreciate some pointers to get me started.

      
Re: Newbie w/ Relay Actuator on HP-IL with 71B
Message #2 Posted by DavidShenk on 13 June 2010, 12:31 p.m.,
in response to message #1 by Miles Willmek

I've been curious about these myself. I hope someone has some info about them.

Dave

      
Re: Newbie w/ Relay Actuator on HP-IL with 71B
Message #3 Posted by Garth Wilson on 13 June 2010, 5:38 p.m.,
in response to message #1 by Miles Willmek

Quote:
I have tried sending some strings like OUTPUT:1,"A1" and the device seems to respond, but not as expected
I'm not familiar with the 82166, but I suspect you might need an actual string, like A1$, not A1. I've done a lot of equipment control with HPIL and never had any problems when I just followed the manuals. As I remember though, it always had to be an actual string.
            
Re: Newbie w/ Relay Actuator on HP-IL with 71B
Message #4 Posted by Garth Wilson on 13 June 2010, 11:06 p.m.,
in response to message #3 by Garth Wilson

Correction: my apologies-- I guess I was in too big of a hurry. I missed the quotes and thought you were sending numeric variable A1.

      
Re: Newbie w/ Relay Actuator on HP-IL with 71B
Message #5 Posted by Raymund Heuvel on 13 June 2010, 9:15 p.m.,
in response to message #1 by Miles Willmek

You could try:

Assuming HP82166A is #1 in the loop:

RESET HPIL                     // Optional 
RESTORE IO                     // 
SEND IFC UNL UNT LISTEN 1      // Resets devices on the loop, makes HP82166A a listener
OUTPUT 1;CHR$(161)             // THIS IS HEX A1 !

Br

Ray
            
Re: Newbie w/ Relay Actuator on HP-IL with 71B
Message #6 Posted by Miles Willmek on 15 June 2010, 9:18 a.m.,
in response to message #5 by Raymund Heuvel

Thanks, for the responses guys.

I still am not having any luck getting a consistent response.

I looked HP2166A and it is apparently an embedded HP-IL to HP-IB interface. So I think I need to put one side or the other on some kind of pass thru mode.

I know some information is going through to the relay, but how do I ensure I am talking to the device and not the interpreter?

                  
Re: Newbie w/ Relay Actuator on HP-IL with 71B
Message #7 Posted by Garth Wilson on 15 June 2010, 1:49 p.m.,
in response to message #6 by Miles Willmek

Quote:
I looked HP2166A and it is apparently an embedded HP-IL to HP-IB interface. So I think I need to put one side or the other on some kind of pass thru mode.
The HPIL-to-HPIB interface converter is the 82169A which I have used a lot. For most things, it is transparent, meaning the HPIB devices appear as though they were on the HPIL. It does have a mailbox mode, but it sounds like what you're looking for is better addressed in the next question:

Quote:
I know some information is going through to the relay, but how do I ensure I am talking to the device and not the interpreter?
Without being familiar with the '166A, I suspect REMOTE will make the device interpret the stuff you send as commands, and LOCAL will make it pass it on as data to whatever equipment is on the other side.

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