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CP 523 Communications Mode

Example: Transferring the parameter setting data for parameter block 7

Start address 128 is set on the CP 523. The module is to be operated in Transparent mode. The

message frames to be transferred have a length of 6 bytes. An end-of-text character is not

required. The character delay time may be 3 s (3 s=001E

* 5.2

** The program in FB 99 waits until the CP 523 can accept job requests ( 4.1)

STL FB 111STL OB 22 Explanation

:JU FB 99

NAME :SYNC **

:JU FB 111

NAME :BLOCK7

:BE

Load no end-of-text characters into

ACCUM 1 and transfer to the CP in bytes

6 and 7.

Load frame length into ACCUM 1 and

transfer to the CP in bytes 4+5.

Load character delay time into ACCUM 1

and transfer to the CP in bytes 2+3.

Load job number (90

), parameter block

number (7

) and mode code (1

) into

ACCUM 1 and transfer to the CP

NAME :BLOCK7

:L KH O0O0

:T PW 134

:L KH 0006

:T PW 132

:L KH 001E

:T PW 130

:L KH 9071

:T PW 128 *

:BE

The status byte can be scanned approx. 30 ms after the request was issued in order to check

whether correct parameter values were forwarded (X4 is returned if values are false ( 7.4.1)).

Note:

EWA 4NEB 811 6044-02a

7-31

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Siemens KS7 Series Spezifikationen Seite 136