SIL3 PROJECT-ACCESS ENABLE PROBLEM
Hello,
As you have answered recently some question about Access Enable .
Using AC800HI , SafetyPLC with SM811.
Software: Control Builder Safe.
Ahead I will like to ask some things:
1) Is it mandatory to have Reauthenticate download as FALSE.
It is showung True in my system. As far as I know, we made it True only when we are working on SoftController.
Should I make it to FALSE
2) I have prepared a simple logic creating a Non-SIL application : A Digital Output Channel IO gets High(true), when it satisfies two or three Required Inputs.
My problem is that even when All necessary inputs are OK, the Output dont gets High.
Rather if i make that DO high, by just using a MOVE block,then it gets High.
3) We have installed a Compact HMI FP4 system on a separate system,and we have made OPC connection OK between these two PC's. But when I tried to operate any Faceplate /Toggle button to Make any IO to True/False, it dont gets operated.
4) I tried proceediing with making connection through another OPC tool, it gets connected to OPC server, but when i attempted to browse in the Variables of program, it shows a Error: "Äccess Enable error".
Kindly support !!
Answers
1) Is it mandatory to have Reauthenticate download as FALSE.
It is showung True in my system. As far as I know, we made it True only when we are working on SoftController.
Should I make it to FALSE
Ans: This has nothing to do with Soft or real controller. The flag value true, restricts your download with authenticated 800xA user (and valid password). In real time, as access management this property in user if your authentication is valid for download. Otherwise, you cant download to controller and you get authetication fail message (which can be a candidate in your audit trial to introspect an invalid download approach).
2) I have prepared a simple logic creating a Non-SIL application : A Digital Output Channel IO gets High(true), when it satisfies two or three Required Inputs.
My problem is that even when All necessary inputs are OK, the Output dont gets High.
Rather if i make that DO high, by just using a MOVE block,then it gets High.
Ans: I am not sure about your logic, you can provide me screenshot of your problem. I can check in lab system. As far as I know, if your output parameter (which is set after some logic) is connected to DO channel, then the channel will be active once the parameter turns to true.
3) We have installed a Compact HMI FP4 system on a separate system,and we have made OPC connection OK between these two PC's. But when I tried to operate any Faceplate /Toggle button to Make any IO to True/False, it dont gets operated.
Ans: I hope the OPC subscription is OK. I doubt, you are missing some safe operation principle here:
a) Check whether you have safety operator role; This is mandatory if you are going to play in SIL applications.
b) Check the parameter/variable is having access level either 'Confirm' or 'Confirm and Access Enable', which means this parameters can be changed in online from facplate even the application is in SIL.
For example: "Object Type Structure >> SignalLib >> control Module >> SIL Access >> In" having access level Confirm
c) You need 'confirmed write support' aspect on the object level.
4) I tried proceediing with making connection through another OPC tool, it gets connected to OPC server, but when i attempted to browse in the Variables of program, it shows a Error: "Äccess Enable error".
Ans: Do as mentioned in Answer in Q3. And check your Aceess Enable LED is lit on SM811 (I2 getting 24V)
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