Siemens KS7 Series Specifikace stáhnout pdf (Strana 151)

Communications Mode CP 523

Example: Evaluating the status of the peripheral device

Start address 128 is set on the module.

If the peripheral device is not ready for operation, output 4.1 is set.

* 5.2

STL FB 118 Explanation

NAME :ERROR3

:L KH 0000

:T PW 128*

:L KH 0010

:L PY 129

:AW

:><F

:BEC

:S Q 4.1

:BE

Transfer nonrelevant data to the CP. The CP then updates the

transfer memory with the current data.

”Status of the peripheral device” evaluation

Set bits 0 to 3 to ”0”

Compare ACCUM 1 and ACCUM 2: If not equal,

Block End

Otherwise, set output 4.1

Block End

Example: Reading the current clock data

Start address 128 is set on the module.

The clock data is to be output to digital output modules beginning address 8.

* 5.2

STL FB 102 Explanation

NAME :CLOCKDAT

:L KH 0000

:T PW 128*

:L PY 129

:L KH 000F

:AW

:T QB 8

:L PW 130

:T QW 10

:L PW 132

:T QW 12

:L PW 134

:T QW 14

:BE

Load ACCUM 1 with nonrelevant data and transfer to the CP in

word 0 so that the CP will transfer the current data to the transfer

memory.

Read the current clock data and transfer to the digital output

modules.

When using the integral clock, you can evaluate the following additional flags in the status

byte:

• Default time of day set (2X

)

This evaluation is only of use if you operate the programmable controller without a backup

battery.

• Time of day or date error (3X

)

This error evaluation is only meaningful after you have set the clock.

• Clock defective (1X

)

This error evaluation is only meaningful after a restart.

Note:

7-46

EWA 4NEB 811 6044-02a

1 2 ... 146 147 148 149 150 151 152 153 154 155 156 ... 256 257

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