Safety Integrated - Industry - Siemens

Sample Code
Preliminary Remarks
Enclosed, we offer you the STEP 7 project as sample code with
which you can reset the functionality described here.
The sample code is always assigned to the components used
in the functional examples 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 a basis.
Password
In all cases, the passwords used for the safety-relevant part is
„siemens“.
Use of the STEP 7 Project
The STEP 7 project indicates the possibility of operating light
curtain of safety category 4 according to EN 954-1 by means
of a failsafe S7-CPU. In this example, the hazardous machine
is simulated by an indicator light. The conditions necessary for
the actuators to reach safety category 4 (e.g. read back of actuator
signals) are not considered in this example.
After setting up and commissioning the functionality introduced
here, the indicator lights used provide the following information:
Illuminated
Explanation
indicator lights
Yellow Hazardous "machine" running (simulates
the actuator).
White Muting mode
Download
The download is available via the following link:
http://support.automation.siemens.com/WW/view/en/
21331201
To call the corresponding project file, open the
"as_fe_i_005_v10_code_lcurtain.zip " file offered as a separate
download (on the HTML page) and extract it into a user
defined directory.
For downloading the project into the F-CPU please proceed as
follows:
■ 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
The sample code with the given configurations enables the
following:
■ Connection of a SIGUARD light curtain 3RG7844 to the failsafe
I/O modules of a failsafe SIMATIC S7-CPU for danger
spot protection.
■ Muting mode
Functional Example No. AS-FE-I-005-V10-EN 229
Ex. No.
5