Not able to configure Pepperl+Fuchs Profibus Power Hub in AC800F
I am trying to configure the power hub in Freelance AC800F but when I set the address to, I get an error. Please see the image attached.
Service 'Set address' finished with error: 'RS'
Please Let me know what this error is and how can I fix this.
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Attached screenshot reflects ‘slave not existent’ and you can set address of connected device only. Even after getting connected with device if you are not able to change address then may be Profibus device does not support modification of address. Check details below
I recommend to get connected with device first i.e it should not show slave not existent then perform scan bus and check your device get scanned ? If yes check device current address and try to change current device address to new available address. Also note that the new bus address to be changed should be defined in configuration of Profibus slave device.
From screenshot: when slave does not exist, how you know your PnF device is allocated at address 64 ?
You can do the following:
when you scan the devices at profibus master level, you will find the devices on the network and you can also see whether those devices are locked or not locked.
Here locked means they are in cyclic communication with the controller.
When you are changing the device address of the PROFIBUS device, make sure that the device is not in cyclic communication. Then you try to change the address to whatever you want. This will happen without any issue.
How to disturb cyclic communication:
Eg: created instance with address 25 & device address is also 25 now the device in cyclic mod, to disturb cyclic communication change the address of the instance and download config to the controller. now at master level scan devices now you will see the profibus device with address & no cyclic communication exists. Try to change the address now this should happen without any error, some times change of address reflects only after power reset.