Siemens SIMATIC NET CP 343-2 Manual page 36

3 Configuration with STEP 7
Slaves Complying with AS-i Specification V3
AS-i slaves complying with AS-i Specification V3 (combined transaction type (CTT)
2−5) are supported by the CP as of firmware version V3.0. You can access the
analog values of these slaves using data records 140 to 147.
Notice
In the corresponding digital values, STEP 7 does not indicate the correct number
of bits. Access to the user data by the user program is nevertheless always possi-
ble.
The following screenshot shows an example of the "Slave Configuration" tab in the
Properties dialog of a module with configured CTT slaves:
"Slave Configuration" tab in the Properties dialog of a CP 343–2 P (example): Not
all bits of the I/O addresses of the CTT slaves are relevant!
36
CP 343−2 / CP 343−2 P AS−Interface Master
Release 08/2008
C79000−G8976−C149−04