Siemens SIMATIC ET 200S Operating Instructions Manual page 235

Configuring with STEP 7 using HW Config
You must first adapt the hardware configuration of your existing ET 200S station.
1. Open the relevant project in SIMATIC Manager.
2. Open the HW Config configuration table in your project.
3. From the hardware catalog, select the 1SSI entry with the number 6ES7 138-4DB03-
4. Double-click this number to open the "Properties - DP Slave" dialog box.
5. Save and compile your configuration, and download the configuration in STOP mode of
Creating a Block and Integrating It into the Controller Program
Create block FC 101 and integrate it in your control program (in OB 1, for example). This
block requires the DB1 data block with a length of 16 bytes. The start address of the module
in the following example is 256.
STL
Block: FC101
Network 1: Presettings
L 0
T DB1.DBD0
T DB1.DBD4
Network 2: Write to the control interface
L DB1.DBD0
T PAD 256
L DB1.DBD4
T PAD 260
Network 3: Read from the feedback interface
L PED 256
T DB1.DBD8
L PED 260
T DB1.DBD12
Technological Functions
Operating Instructions, 06/2010, A5E00124867-07
0AB0 in the infotext. Drag the entry to the slot at which you have installed your 1SSI.
On the "Addresses" tab, you will find the addresses of the slot to which you have dragged
the 1SSI. Make a note of these addresses for subsequent programming.
On the "Parameters" tab, you will find the default settings for the 1SSI. Select the encoder
type in accordance with the connected SSI encoder and enter all the required data. You
will find the encoder data on the type label and in the technical specifications of the
encoder.
the CPU by choosing "PLC > Download to Module".
Description
//Delete control bits
//Write 8 bytes to the 1SSI
//Configured start address of the outputs
//Read 8 bytes from the 1SSI
//Configured start address of the inputs
1SSI
4.3 Example: Starting 1SSI
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