Network 3: Resetting The Timer - Siemens SIMATIC S7 System Manual

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Getting started

2.2 Creating the sample program

To enter the instruction for turning on output M10.0:

1. Double-click the Bit Logic icon to display the bit logic instructions and select the output

2. Hold down the left mouse button and drag the coil onto the second network.

3. Click "???" above the coil and enter the following address: M10.0

4. Press the Return key to enter the address for the coil.

Network 3: Resetting the timer

To enter the contact for the timer bit of T33:

1. Select the "Normally Open" contact from the bit logic instructions.

2. Hold down the left mouse button and drag the contact onto the third network.

3. Click "???" above the contact and enter the address of the timer bit: T33

4. Press the Return key to enter the address for the contact.

To enter the coil for turning on M0.0:

1. Select the output coil from the bit logic instructions.

2. Hold down the left mouse button and drag the output coil onto the third network.

3. Click "???" above the coil and enter the following address: M0.0

4. Press the Return key to enter the address for the coil.

When the timer reaches the preset

value (100) and turns the timer bit on,

the contact for T33 turns on. Power

flow from this contact turns on the

M0.0 memory location. Because the

timer is enabled by a Normally Closed

contact for M0.0, changing the state of

M0.0 from off (0) to on (1) resets the

System Manual, V2.3, 07/2017, A5E03822230-AF

S7-200 SMART

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Simatic s7-200 smart