ProSoft Technology ProLinx S3964R Manual de usuario descargar pdf (Pagina 64)

MVI69-S3964R ♦ CompactLogix or MicroLogix Platform Reference

Siemens 3964R Protocol

Page 64 of 80 ProSoft Technology, Inc.

October 31, 2008

Receive Jobs

To receive jobs from a CP only, no additional parameterization is necessary. The

user data received is stored in a file in the CompactLogix or MicroLogix

processor.

The following table shows an example of the data stored in HeaderCom1 in case

of a DB-Send from a CP. The CP is connected to port 1.

Word: High Byte: Low Byte:

0 1141hex

1 00 Data Block (DB)

2 00 Data Word (DW)

3 Number of data words (total number)

4 Number of data words (actual block)

5 00 00

6 00 00

7 00 00

8 00 00

9 00 00

= This is the total number of data words for the whole job.

= This is the number of data words stored in RecvDataCom1.

The user data is copied to RecvDataCom1. This is the file you should operate

with.

For port 2, which is similar to port 1, the file for storing the user data received is

called RecvDataCom2.

Send Jobs

To send a job to a CP, Next, define the appropriate header for the job. The

following table shows an example of the header data for a DB-Send job to a CP

with the following parameters:

DB = 10, DW = 0, 128 words, coordination byte 9 = FFhex, coordination byte 10

= FFhex, Data Type = 44hex.

Word: High Byte: Low Byte:

0 0041hex

1 00 10

2 00 0

3 80hex (= 128dec)

4 FFhex FFhex

5 00 44hex

6 00 00

7 00 00

8 00 00

9 00 00

A DB-Fetch job will be parameterized similar to the example above.

To send with 3964R without RK512 to a CP (identifier 00FFhex), the values for

DB, DW and the coordination bytes will be ignored and can be set to "0".

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 79 80

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ProSoft Technology ProLinx S3964R Manual de usuario Pagina 64

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