Siemens S7-300 plc dial switch setting Heating time programming examples

here is plc program examples about siemens s7-300 plc , You can learn about Timer instruction。

(1)Control requirements.

the operator can set the heating time with a dial switch, and the operator set the value to be displayed in a second unit in a BCD format.

(2) Defining the programming element symbol address

  System components
    address
Start button
I0.7
Single digit dial switch
I1.0~I1,3
Tens digit dial switch
I1.4~I1.7
Hundreds digit dial switch
I0.0~I0.3
Start heating
Q4.0

(3) Ladder diagram

plc ladder diagram


http://www.plchelpcenter.com/2016/07/19/siemens-s7-300-plc-dial-switch-setting-heating-time-programming-examples.html

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