Afcon Over Opc Server

[power 0]

hi, i am dealing with the communication between twido and afcon pcim, is a scada software program, over opc server i have provided the communication and read the value which are in the plc on pc. i couldn not write anything to plc from pc and accordingly afcon. on the other hand in the opc client i have not any trouble like this . i think it is related with the afcon pcim but i could not found the solution yet. thank you for reading

[Spanner 0]

Most SCADA systems I've worked with have an option on the Tag configuration for selection between Read only and read/write. Seems simple enough but check this in the configuration of the Tag you want in Both the OPC server setup and the SCADA system Setup.

[Friday 0]

Hi, If you would like to control any outputs of PLC, you have to write ladder into that PLC first. For example. -----||------------(y0001) M0001 Create new OPC tag on OPC Server reffer to 'M0001' in PLC. Then you can use OPC Client to control 'M0001' cause 'y0001' to on or off. Edited 7 Feb 2006 by Friday