Internet PLC Forum

General => Technical support => Topic started by: CMP on November 14, 2005, 12:33:32 PM

Title: Polling
Post by: CMP on November 14, 2005, 12:33:32 PM

Is it possible to poll the T100MD using qbasic.

If so, how?

Title: Re:Polling
Post by: support on November 14, 2005, 01:18:41 PM

Do you mean polling the I/O and internal variables? Definitely. The PLC has a full set of communication protocols that allows you to poll any data within the PLC. In addition, because it supports MODBUS protocol it can also be used as an RTU and polled by a PC SCADA program or HMI. If you want to write your own BASIC program you can refer to an example written in Visual Basic 6 at the following web link:

http://www.tri-plc.com/applications/VBsample.htm

Isn't Qbasic a DOS program? If so, then there are already DOS sample communication program included in the TRiLOGI program CD ROM.