Siemens v1.0 Servisní příručka stáhnout pdf (Strana 105)

Extended example

3.2 Expanding the program

STEP 7 Basic V10.5

Getting Started, 12/2009, A5E02651459-01

105

5. Insert a normally closed contact at the end of the second rung and interconnect it with the

tag "milk_pasteurized".

By interconnecting the tags "LS_2" and "milk_pasteurized" you define the condition that

the conveyor will be stopped when a bottle has reached the heating chamber and the

milk has not been pasteurized yet.

6. Insert a normally open contact into the third new rung and interconnect it with the tag

"LS_3".

By interconnecting the tag "LS_3" you define the condition that the conveyor will stop

when a bottle has reached the end of the conveyor.

7. Interconnect the inserted normally open contacts in a parallel connection.

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Siemens v1.0 Servisní příručka Strana 105