FieldPoint and Component Works...

[timsorenson]

I am looking for an example that shows how to read/write to a FieldPoint device. We are using RS-232 and I am unable to access this device and read the channel information on a the counter module.

[Aaron_G]

Tim,

Using ComponentWorks and FieldPoint, there are two options for communications. The first method is to use the CWSerial control to send and parse the Optomux command strings that the FP-1000/1001 modules use. These commands can be found in the FP-1000/1001 Programmers Reference Manual. The manual can be downloaded at:

If you want the flebility of using both serial and ethernet FieldPoint Network Interface Modules, then I recommend using the FieldPoint OPC Server (automatically installed with FieldPoint Explorer). There are examples of using Component Works DataSockets with the FieldPoint OPC Server at:
http://zone.ni.com/devzone/devzoneweb.nsf/Opendoc?openagent&EE7CE085E675448E8625696800652EF0
Also, I would recommend reading AppNote 139 (Developing an OPC Client Appli
cation Using Visual Basic) at:
http://www.ni.com/pdf/instrupd/appnotes/an139.pdf

Please note that the information contained in the AppNote is applicable and usable for any version of CWDataSockets, not just Visual Basic.

Regards,
Aaron