1.3
Technical Specifications of the Module
The CP 343-2 / CP 343-2 P module has the following characteristics:
Table 1-1
Technical Specifications
Feature
Bus cycle time
Configuration
Supported AS-i master profiles
Connection of the AS-i cable
Address area
Current consumption from SIMATIC
backplane bus
Power supply SIMATIC backplane bus
Current consumption from the AS-i cable
Power supply from the AS-i cable
Ambient conditions
S
Operating temperature
S
Transportation and storage temperature
S
Relative humidity
Construction
S
Module format
S
Dimensions (W x H x D) in mm
S
Weight
CP 343−2 / CP 343−2 P AS−Interface Master
Release 08/2008
C79000−G8976−C149−04
1 Technical Description
Explanation/Values
5 ms with 31 slaves
10 ms for 62 slaves with the extended
addressing mode
Depending on the slave profile, analog values
have longer update times.
Using buttons on the front panel or with
STEP 7
(download of the configuration with
FC "ASI_3422", see section 5.1)
M4
Via S7-300 front connector with screw
contacts (20-pin)
Current load between contact 17 and 19 and
between 18 and 20 maximum 4 A
16 I bytes and 16 Q bytes in the analog area
of the S7-300
max. 200 mA
5 V DC
max. 100 mA
DC 29.5 to 31.6 V, according to the AS–i
specification
S
0..60_C (horizontal installation of the S7
standard rail)
S
0..40_C (vertical installation of the S7
standard rail)
−40_C to +70_C
max. 95% at +25_C
Compact module S7-300, single width
40 x 125 x 115
approx. 200 g
15