Safety Integrated - Industry - Siemens

Ex. No.
1
Basic Performance Data
Load and main memory (without program code)
Total S7 standard
blocks
F blocks (failsafe)
Load memory approx.
37,5
approx. 0,2 k approx. 37,3 k
Main memory approx.
28,2
approx. 0,08 k approx. 28,1 k
Load and main memory (with program code)
Total S7 standard
blocks
F blocks (failsafe)
Load memory approx.
42,9 k
approx. 1,1 k approx. 41,8 k
Main memory approx.
31,1 k
approx. 0,4 k approx. 30,6 k
Cycle time
Total cycle time
(typical value)
Max. runtime of the
safety program
approx. Standard and safety program
5 ms
10 ms Calculation with the Cotia table.
Page 180 specifies where
to find it.
176 Functional Example No. AS-FE-I-001-V10-EN
Sample Code
Preliminary Remarks
Enclosed, we offer you the STEP 7 project as sample code with
which you can reset the described emergency stop functionality.
The sample code is always assigned to the components used
in the functional example and implements the required functionality.
Problems not dealt with in this document are to be
implemented by the user; the sample code may serve as basis.
Password
In all cases, the passwords used for the safety-relevant part is
„siemens“.
Use of the STEP 7 Project
An indicator light (simulates a machine) is switched on via a
push-button (START). The emergency stop button is used for
switching off. Restarting requires an acknowledge signal (ACK
button).
Operation related switching off is not implemented in this example,
however, on the following pages it will be illustrated
how to include this signal.
Download
The download is available via the following link:
http://support.automation.siemens.com/WW/view/en/
21064024
To call the corresponding project file, open the
"as_fe_i_001_v10_code_estop.zip " file offered as a separate
download and extract it into a user defined directory.
■ First load the hardware configuration into the S7-CPU
■ Switch to the SIMATIC Manager
■ Select the "Blocks" container
■ Menu "Options" -> Edit safety program
■ Click the "Download" button
■ Finally, set the mode switch of the F-CPU from STOP to RUN