AnsweredAssumed Answered

vrf Using control pins on I/O objects

Question asked by VRFuser on Jul 31, 2008
Yes, you are right.  Besides, the control pin for address is not available for TCPIP instruments using Direct I/O.  So, it is better to use the IO.address property and change the address than rely on control pins to Direct I/O boxes.
 
Regards,
Uday
 

  _____  

From: Schlieker, Reiner [mailto:reiner.schlieker@siemens.com]
Sent: Thursday, July 31, 2008 2:01 AM
To: VRF
Subject: [vrf] Using control pins on I/O objects


/soapbox
 
To Whom it May Concern,
 
I've noticed on the vrf that a lot of people still seem to be using the control input pins on I/O boxes to change the address dynamically.  I believe it was in VEE 6.0 (I can't confirm because I don't have it loaded, and my internet is currently down - arrrg) that VEE introduced the concept of using properties to set the address, and many other things that couldn't be set before.  At that time, they "warned" that using control pins was "old school", and any new code  should use the new method.
 
6 releases of VEE later, VEE 8.5 apparently only supports using control pins (for setting addresses) if you switch to legacy mode (again, I can't confirm this, because I only own VEE 8.0).  To me this indicates that in the next major release, it may no longer be supported.  For this reason, I would recommend that a control pin not be used for this purpose.  If you do, you may be in for a rude awakening if you upgrade to the latest greatest VEE and it no longer supports it!
 
Just my $0.02...
 
soapbox/
 
Reiner

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