Forums.MrPLC.com > Display ST file Data on PV600 from SLC5/04

Full Version: Display ST file Data on PV600 from SLC5/04

Forums.MrPLC.com > PLCs and Supporting Devices > Allen Bradley

Chavak

Oct 26 2005, 07:21 AM

Hi,

I'm trying to display ST file data, basically decimal digits extracted from a ASCII file read from a Prosoft MVI46-GSC module.

PLC is acquiring the data correctly in the ST file - ST19:1 ~ ST19:100.
The tag is created as ST19:1 - Character array [PV help file says it supports ST file data]. But it refuses to display anything. In the PV I do not find any objects to display a ST file directly. What I am doing is add a text + a character as an embedded variable with the tag pointing to ST19:1.

I'm trying to log the read outs from a linear gage(100 of them) on a PV page.

Thanks
Regards

__________________

jstolaruk

Oct 26 2005, 07:34 AM

QUOTE

What I am doing is add a text + a character as an embedded variable with the tag pointing to ST19:1.

You're saying that you are using a text object and then imbedding a variable in the text property? Thats the only way I know how to do it and it works on any object that has text.

TWControls

Oct 26 2005, 09:01 AM

Make sure the data type in the tag editer is Character Array and the Array Size is the number of characters

Chavak

Oct 27 2005, 12:10 AM

Thank you Guys,

Managed to solve the issue by adding an extra ".1" in the tag address. [ST19:1.1 instead of ST19:1]

The tip was given from a member at a different forum at

http://www.plctalk.net/qanda/showthread.ph...5558#post125558

Thank You

Spedley

Oct 27 2005, 10:10 AM

I presume then that ST19:1 (ST19:1.0) actually points to a word containing the string length and ST19:1.1 is the start of the string (or ST19:1.DATA[0]) ?

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