Hello Burton,
Soon NI will be making available a KnowledgeBase article on this topic.
For now, here's what you need to do:
Make sure you have the OEM or Full version of RSLinx V2.1. In RSLinx, once
you've setup your PLC, right-click on your PLC icon and select 'Configure
New DDE/OPC Topic'.
This will add a new access path for your server. For example, the access
path is say, THERE so when you define the access path in Lookout you have
to use the following syntax: [Access Path]Item. In this case it would be
[THERE]N7:0 to access the register N7:0.
Once this is defined you should be able to access all the available registers
on you PLC from any OPC Client.
For Lookout 3.8, you will have to define the Access Path in the 'Description'
field of the Database. You will
have to manually type the access path. The
format for this is: ~~[Topic name] item. For the example above, use ~~[THERE]N7:0.
Also, make sure you change the Cache Update Rate to at least 2ms to avoid
hogging the CPU.
If you're having troubling configuring this, call NI's Support at 512.683.0100.
Regards,
Khalid Ansari
__________________
"Burton Millet" wrote:
>>I am using Lookout ver 3.8.16 and need to communicate to the Allen-Bradley
Logix 5550 PLC using OPC client object talking to RSLinx. You can call me
at 504-8967800 ext.243
