And the actual problem is that there is no commnication established at the first place. While testing use an analog tag not a digital one, Digital Tags only have 2 values (True and False), So you may think that it's not updating. It was a very long time since your last post (8 months), Is it a graduation project ?!Īnyway, I have no experience with ABB PLC, But the concepts are the same every where (Aren't they?!)ġ- The OPC server is not 'seeing' the PLC. I tried another plc and it works good with ifix i dont know why abb ac31 plc do this problem with i fix please help

I use modbus mb1 driver also i tried top server but noo good open all timeĪnd also i have problems of addressing of abb ac31 plc Now iam near of finish just one problem the ifix reads one value from plc and dosent change ex. Note that some of the names I used may differ from one vendor to the other, but you should be able to link this info given here with info that you should get from the manual.Īnd hope you complete you project successfully. Now what are groups that we defined in step 3?Īnswer: Think of it as 'Folders' that manage your huge number of tags.

You should create ' Tags' or ' Items' or ' Alias' different names for the same meaning, For each item you create must define the following:Ĥ.1 ' Name' for it (This name will be used later in your SCADA software)Ĥ.3 ' Address' which the memory address in your PLC that this tag will hold the value for.Ĥ.4 Other things may be defined depending on the vendor and your needs. You should now create ' Groups', I'll talk about it later. You should create a new ' Device', In this one you configure the communication protocol used by your PLC with exact model if there are many models support the same communication protocol. etc.ġ.2 If it was Ethernet, You select the PCI card, IP address. You should create new ' Channel', In this one you configure the communication interface that you'll use between the OPC server and the PLC.ġ.1 If you are using a serial connection (RS232-485-422), You configure here all related configurations such as Comport, Baud rate, Parity, stop bits. I'll assume that you have the proper OPC server that can 'talk' to your ABB PLC, Proper OPC server means that it can handle the communication protocol used by your ABB PLC.

My problem is in ifix 3.5 and opc i dont know where to start and what i first do in opc and ifix to make tags works correct

Abb Ac31 Software Download