Assigning As-I Addresses To The Cm 1243-2 As-I Master Module And As-I Slave - Siemens SIMATIC S7-1200 Manual

Easy to communicate between devices
7.7 AS-i
Use the hardware catalog to add AS-i slaves as well. For example, to add an "I/O module,
compact, digital, input" slave, in the Hardware Catalog, expand the following containers:
● Field devices
● AS-Interface slaves
Next, select "3RG9 001-0AA00" (AS-i SM-U, 4DI) from the list of part numbers, and add the
"I/O module, compact, digital, input" slave as shown in the figure below.
Table 7- 12 Adding an AS-i slave to the device configuration
Insert the AS-i slave
7.7.2

Assigning AS-i addresses to the CM 1243-2 AS-i Master module and AS-i slave

Configuring the AS-i interface
To configure parameters for the AS-i interfaces, click the yellow AS-i box on the
CM 1243-2 AS-i Master module, and the "Properties" tab in the inspector window displays
the AS-i interface. The AS-i slave interface is configured in the same manner.
Table 7- 13
1
①
Assigning the AS-i address
In an AS-i network, each device is assigned an AS-i address. This address can range from 0
through 31; however, address 0 is reserved only for new slave devices.
The slave addresses are 1(A or B) to 31(A or B) for a total of up to 62 slave devices. Any
address in the range of 1 - 31 can be assigned to an AS-i slave device; in other words, it
does not matter whether the slaves begin with address 21 or whether the first slave is
actually given the address 1.
146
Configuring the CM 1243-2 AS-i Master module and AS-i I/O module, compact, digital,
input slave interface
CM 1243-2 AS-i Master module
AS-i port
Result
AS-i I/O module, compact, digital, input slave
1
Manual, 11/2011, A5E02486774-04
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