Getting started
2.3 Programming
S7-1200 Functional Safety Manual
Manual, 02/2015, A5E03470344-AA
55
4. Insert a third input to the "AND logic operation" instruction and initialize the inputs of the
instruction with parameters as described in the table below.
5. Insert the "ESTOP1" instruction from the "Safety functions" subfolder of the "Instructions"
task card.
6. Click "OK" to confirm the "Call options" dialog.
7. Initialize the inputs and outputs of the instruction with parameters as described in the
table below.
8. Connect the output of the "AND logic operation" instruction to the "ESTOP" input of the
"ESTOP1" instruction.
The programming of the emergency stop function is now complete.
Parameter assignment of the "AND logic operation" instruction
#EN_Safety_Door Input 2 Bool Enable safety door FALSE
Parameter assignment of the "ESTOP1" instruction
TRUE ACK_NEC Bool TRUE = Acknowledgment required TRUE
"Acknowledge" (I0.0) ACK Bool User acknowledgement (using a pushbut-
FALSE
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