Setting The Address Of An As-I Slave; Variable Configuration; Option Handling - Siemens SIMATIC ET 200SP Manual

5.4.3

Setting the address of an AS-i slave

In the "Online" > "Diagnostics" window, you can assign a new address to an AS-i slave using
a selection menu and the "Execute addressing" button. Only free AS-i addresses are
available here.
5.5

Variable configuration

Option handling and proxy slaves can be combined.
5.5.1

Option handling

A machine consists of a basic configuration and several expansion stages. The overall
configuration is configured in the
stage are configured as optional slaves. When the system is commissioned, the user
program (PLC) defines which expansion stages are installed. The configuration in
remains unchanged.
You can use option handling to activate and deactivate AS-i slaves that you have defined in
HW Config in the user program during operation.
You configure the AS-i slaves in the AS-i master as described in Section "Configuration of
the AS-i slaves in STEP 7 (Page 31)":
1. Activate option handling.
STEP 7
– Select "Options > Option handling" in the slave properties dialog.
– Select the "Option handling" check box.
STEP 7
– Select the "Slave configuration" tab in the "Properties..." dialog of the CM AS-i Master
– Double-click the desired AS-i address (1A, B, 2A, B, etc.) to open the "Configuration"
– Select the "Option handling" check box.
This activates the option handling for this slave.
2. Activate the slave using the user program (PLC).
You can also deactivate the slave in the user program.
The AS-i master treats an optional slave that is not activated like a slave that is not
configured. The AS-i master treats an activated optional slave like a slave that is configured
without option handling.
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004
(TIA Portal):
V5.5:
ST.
of the AS-i slave.
STEP 7
project. The slaves that belong to an expansion
Configuring
5.5 Variable configuration
STEP 7
39