GPIB and Serial together

[ajleal@my-deja.com]

Is it possible to control GPIB and read off a serial
port at the same time ? I need to read off the serial
port before any GPIB function takes place


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[Greg_McKaskle2]

> Is it possible to control GPIB and read off a serial
> port at the same time ? I need to read off the serial
> port before any GPIB function takes place
>

It is possible to do both GPIB and serial without
blocking the execution of the other. Both support
an asynchronous interface; so things can progress
at the same time even though they really aren't
happening at the same time.

Short answer is: its done all of the time.
Greg McKaskle

[ajleal@my-deja.com]

In article <37E847FF.24A289FC@austin.rr.com>,
GMCKASKLE@austin.rr.com wrote:
> > Is it possible to control GPIB and read off a serial
> > port at the same time ? I need to read off the serial
> > port before any GPIB function takes place
> >
>
> It is possible to do both GPIB and serial without
> blocking the execution of the other. Both support
> an asynchronous interface; so things can progress
> at the same time even though they really aren't
> happening at the same time.
>
> Short answer is: its done all of the time.
> Greg McKaskle
thanks ...I am still new to this....
>


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[Laurent]

In article <7s8orv$t4p$1@nnrp1.deja.com>,
ajleal@my-deja.com wrote:
> Is it possible to control GPIB and read off a serial
> port at the same time ? I need to read off the serial
> port before any GPIB function takes place
>
> Sent via Deja.com http://www.deja.com/
> Share what you know. Learn what you don't.
>
Hi,
If the serial ports are not connected to the same instrument, it is
possible to.
If the serial port is connected to the instrument where GPIB is
connected, it is possible to ... but not with all gpib instruments: I
use one witch must be configured for serial communication 0R GPIB
communication but not both at the same time.

Laurent.



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[ablockcpii]

Greg perhaps you can help me then. I would like to connect a HP7550A plotter to both a HP network analyzer, and a PC (via serial cable). So far all attempts to print using either only the GPIB or only the serial cable work fine, but if both are connected, the system locks up and will not print. Any advice?

Thanks