Siemens CU240S DP Instrucciones de operaciones descargar pdf (Pagina 160)

Communication

6.4 Communication via PROFIBUS

Control Units CU240S

160 Operating Instructions, 10/2007, A5E00766042B AC

Information about the parameter request:

● Request_reference:

The value is selected at random from the valid value range. The request reference

establishes the relationship between request and response.

● Request_ID:

0x01 --> This identifier is required for a read request.

● Drive_object_ID:

0x00 -> Device-Representative.

● No_of_parameters:

0x02 --> Two parameters are read.

● Attribute_parameter_01:

0x10 --> The parameter values are read.

● No_of_elements_01:

0x08 --> The current fault incident with 8 faults is to be read.

● Parameter_number_01:

03B3 --> P0947 (last fault code) is read.

● Subindex_01:

0x00 --> Read access starts at index 0

● Attribute_parameter_02:

0x10 --> The parameter values are read.

● No_of_elements_02:

0x08 --> The current fault incident with 8 faults is to be read.

● Parameter_number_02:

03B5 --> P0949 (last fault code) is read.

● Subindex_02:

0x00 --> Read access starts at index 0.

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Siemens CU240S DP Instrucciones de operaciones Pagina 160