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vrf Poll RS-232
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on Dec 12, 2002
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Dec 11, 2002 5:18 PM
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"><HTML><HEAD><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"><META NAME="Generator" CONTENT="MS Exchange Server version 6.0.6336.0"><TITLE>Poll RS-232</TITLE></HEAD><BODY><!-- Converted from text/rtf format --><P><FONT SIZE=2 FACE="Arial">I'm trying to communicate with an old piece of test equipment, Solar Automated Module (SAM) box that has a Microprocessor 63B09P (old) by RS-232 port. Before, we were using HyperTerminal to collect data and save as a .txt file, then process it afterwards by excel. The test we do last between 2 to 5 hours.</FONT></P><P><FONT SIZE=2 FACE="Arial">I created a program in HP-vee to collect and process that data, but the communication is slow during sampling. I cam sends set-up commands, and receive feedback with hardly any problems.</FONT></P><P><FONT SIZE=2 FACE="Arial">Here is my problem. In sampling mode, the Sam box sends out message around every 15 to 25 seconds depending on the system that is hock up to. The program is in a wait status until data is received or a time-out has occurred before more processing can occur. Either, I have a long time-out set on the Direct I/O so that no time-out error is detected. Or have a short time-out on the Direct I/O and have an “End of Thread” connected to the error pin. I have a repeat the sampling thread on it to keep it active until the test is done.</FONT></P><P><FONT SIZE=2 FACE="Arial">Is there a way to poll the RS-232 port? Or is there other way of doing it? </FONT></P><P><FONT SIZE=2 FACE="Arial">Eric Vahlkamp</FONT></P>---<BR>You are currently subscribed to vrf as:
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