ProSoft Technology ProLinx S3964R Manual de usuario descargar pdf (Pagina 47)

Functional Overview S3964R ♦ ProLinx Gateway

Driver Manual Siemens 3964R Protocol

ProSoft Technology, Inc. Page 47 of 64

April 14, 2009

Word Value Description:

3 0

Error Code. This error code should be monitored continuously because

sometimes it might take awhile for a communication error to occur

depending on timeout values and the type of error.

4 16

Number of data words in this message block. Modbus TCP/IP multi-

block Block Number (1 word) plus RK512 Header (10 words) plus the 5

words of fetched data.

5 0 Multi-block number should always be 0.

6 0x1141

Job Code ID. 0x1141 = DB-SEND initiated by 3964R communication

partner.

7 0 Data Block number. This is the block number to write the data to.

8 0

Data Word number. This is the index into the selected block number to

write the data to.

9 5

Number of data words Total. This is the number of data words that are

being sent in this message.

10 5

Number of data words Block. Always equal to Number of data words

Total.

11 0 Reserved.

12 0 Reserved.

13 0 Reserved.

14 0 Reserved.

15 0 Reserved.

16 11 1

data word value.

17 22 2

data word value.

18 33 3

data word value.

19 44 4

data word value.

20 55 5

data word value.

Port 0 Transmit Database (After Reading DB-Send Data)

After the DB-SEND data has been read, the transmit database must be updated

as follows:

Word Value Description:

300 X No change.

301 4

Last Received Sequence number. After DB-SEND data has been read,

copy value from Port 0 receive database Receive Sequence number

(word[0000]) to this location to tell 3964R driver that it is OK to write

new data into the Receive database. In our example, we copy the new

Receive Sequence value of 4 to this location.

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 63 64

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ProSoft Technology ProLinx S3964R Manual de usuario Pagina 47

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