Technical data

Manual – MOVI-PLC® advanced DH.41B Controller

Return codes for parameter setting

Operating Characteristics on PROFIBUS-DP

Parameter data

format

When parameters are set via the fieldbus interface, the same parameter coding is used

as with the serial RS485 interface or the system bus.

5.4 Return codes for parameter setting

Elements If parameters are set incorrectly, the MOVI-PLC

advanced DHF41B control card

returns various return codes to the parameter setting master, providing detailed informa-

tion on the cause of the error. Generally, these return codes are structured. SEW

distinguishes between the elements

• Error class

• Error code

• Additional code

These return codes are described in detail in the Fieldbus Communications Profile

manual and are not included in this documentation. However, the following special

cases can occur in connection with PROFIBUS:

Error class The error class element provides a more exact classification of the error type. The

MOVI-PLC

advanced DHF41B control card supports the following error classes in

accordance with EN 50170(V2):

Error code The error code element provides a means of identifying the cause of the error within the

error class. It is generated by the communication software of the fieldbus card in the

event of an error in communication. For Error class 8 = Other error, only Error code = 0

(Other error code) is defined. In this case, detailed identification is made using the

additional code.

Class (hex) Designation Meaning

1 vfd state Status error of the virtual field device

2 application reference Error in application program

3 definition Definition error

4 resource Resource error

5 service Error during execution of service

6 access Access error

7 ov Error in the object list

8 other Other error (→ additional code)