ABB PFEA101 weighing sensor

The block STRT.PSFR contains a list of bus/device numbers from which parameter write jobs are accepted. The bus/device numbers are contiguously arranged in the parameter field XXXX of the ID type from index 0 to max. index 15. “–1” is the default value for field elements. The entry in the first field element (index 0) specifies whether or not the parameter write jobs are checked.Parameter write jobs transmitted from bus devices which are not entered in the enable list through the check function is switched on, are rejected and an error code is set in the return message. Parameter read jobs and other message frames are not affected by the check using STRT.PSFR.

The entry in the STRT.PSFR block takes place

 by parameterization of the input no.5 with the following index signification: “P,5:i,x;”. If the check function is switched on, index i can accept values from 0 to 15 for up to 16 permissible transmitters of parameter write jobs. The bus/ device number x is entered as decimal number which contains the bus number in hex representation in the left–hand byte and the device number in the right–hand byte. The input value x is thus the sum of the bus number multiplied by 256 plus the device number:The STRT.PSFR block is retained after filing and loading, even if the configuration has been loaded in the meantime in an AS system without the function “Checking of write jobs”. The check function via the STRT.PSFR block is contained in the system software from release F03 onwards.

DI/CD Message Frames

 DI/CD message frames contain data of the AKS, BKS, MKS or ZKS linking blocks. Up to 28 analog values (AKS) or 128 binary values (BKS) or 64 characters (ZKS) or 32 messages (MKS) can be transferred in each message frame.Incoming message frames are directly processed on the bus processing level (PU7), i.e. the message frames are immediately interpreted and entered in a buffer of the corresponding receiver blocks (MKE (AS 231 only), AKE, BKE, or ZKE).

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