User`s manual

5-22 Series 90™-30 CPU with Embedded PROFIBUS Interface – November 2004 GFK-2334A

DP-V1 Write Request Reply Data Format –

Response written to location specified by Words 8 & 9

Word Name Description

1 Command

Code

Echo of the Command Code = 8.

2 Slave

Address

Echo of Slave address from command.

3 Slot Number Echo of Slot number from command.

4 Index Echo of Index from command.

5 Length Actual length of received data.

6 WriteReqStat The DPV1 status of the read request. This status word indicates success

or failure of the DPV1 request. See status table below.

If ReadReqStat = CON_AD (54)

7L Data Low Indicates Error Code 1.

7H Data High Indicates Error Code 2.

8—12 Reserved NA

DPV1 Return Status and Error Codes

The tables below shows possible return messages contained in the ReadReqStat /

WriteReqStat fields of the DPV1 requests discussed above. Also included are the Error

Code 1 and 2 fields.

Code Name Indication

0 CON_OK Service executed without error.

2 CON_RR Resource unavailable.

3 CON_RS Requested function not supported by the slave.

9 CON_NR No answer data however, slave did respond.

17 CON_NA No response from slave.

18 CON_DS Master not in logical bus.

25 CON_NP Unrecognizable reply from slave.

54 CON_AD Negative response, Access denied.

129 REJ_SE Master is about to stop DPV1 communication or DPV1 is not in Open state.

130 REJ_ABORT Master has stopped DPV1 communication automatically.

131 REJ_PS A previous service is still in process.

132 REJ_LE The length indicator oversteps maximum configured size.

133 REJ_IV Wrong parameter in request

154 REJ_COM Unknown command.