COM_ERR DPM_COM_ERR_TYPE

Communication errors can be located more detailed using COM_ERR. COM_ERR outputs a structure of the type DPM_COM_ERR_TYPE. This data type is declared as follows within the PROFIBUS DP library:

TYPE DPM_COM_ERR_TYPE:
STRUCT
    ADDRESS:  BYTE;
    EVENT:    BYTE;
END_STRUCT
END_TYPE

Note

COM ERR is not supported by Communication Module CM592-DP. ADDRESS and EVENT are always set to 0.

ADDRESS

Data type: BYTE

If an error occurs, ADDRESS contains the bus address of the faulty device (0 to 125). If ADDRESS has the value 255, the error is located in the Communication Module itself.

EVENT

Data type; BYTE

EVENT displays the cause of an error.

The following tables show the encoding of the various errors.

ADDRESS = 255 / Communication Module error

Event	Meaning	Error source	Remedy
50	USR_INTF task not found	Communication Module	Contact ABB
51	No global data field	Communication Module	Contact ABB
52	FDL task not found	Communication Module	Contact ABB
53	PLC task not found	Communication Module	Contact ABB
54	No master parameter record	Configuration	Generate configuration in the project and reload program to controller
55	Faulty value in master parameter record	Configuration	Check configuration data for Communication Module in the project and/or reload program to controller
56	No slave parameter records	Configuration	Add DP slaves to configuration data and reload program to controller
57	Faulty value in a slave parameter record	Configuration	Check configuration data of subordinate DP slaves in the project and/or reload program to controller
58	Doubled slave address	Configuration	Check configuration data of subordinate DP slaves in the project for doubled bus addresses and/or reload program to controller
59	Invalid offset address output data	Configuration	Check configuration data of subordinate DP slaves in the project for invalid IEC addresses and/or reload program to controller
60	Invalid offset address input data	Configuration	Check configuration data of subordinate DP slaves in the project for invalid IEC addresses and/or reload program to controller
61	Range overlapping in output data	Configuration	Check configuration data of subordinate DP slaves in the project for overlapping IEC address ranges and/or reload program to controller
62	Range overlapping in input data	Configuration	Check configuration data of subordinate DP slaves in the project for overlapping IEC address ranges and/or reload program to controller
63	Unknown process data handshake	Controller	Supply voltage OFF/ON, otherwise contact ABB
64	Insufficient memory	Communication Module	Contact ABB
65	Faulty slave parameter record	Configuration	Check configuration data of subordinate DP slaves in the project and/or reload program to controller
202	No segment available	Communication Module	Contact ABB
212	Error while reading database	Configuration/ Communication Module	Reload program with configuration data to controller
213	Faulty transfer structure operating system	Communication Module	Contact ABB

ADDRESS = 0..125 / Error at subscriber with bus address ADDRESS

Event	Meaning	Error source	Remedy
2	Subscriber reports overflow	DP master telegram	Check configuration data of subordinate DP slave in the project and/or reload program to controller
3	Subscriber does not support requested function	DP master telegram	Check DP slave for conformity according to PROFIBUS DP standard
9	No data in response telegram	DP slave	Compare configuration data of subordinate DP slave in the project with actual configuration and reload program to controller if necessary
17	Subscriber does not response	DP slave	Check bus line and DP slave bus address
18	DP master not in logical token ring	DP master	Check the configured DP master bus address, the highest station address (HSA) in the other system DP masters and/or bus line for short circuits
21	Faulty parameter in request telegram	DP master telegram	Contact ABB