Technical data

The AS-i Masters
2-6
SIMATIC NET AS-Interface – Introduction and Basic Information
C79000-G8976-C089/03
2.3 AS-i Master for SIMATIC S5 PLCs in the Higher
Performance Range
CP 2430 (Standard AS-i Master)
The CP 2430 is available as a master module (AS-i standard master) for
programmable controllers of the S5-115U, S5-135U, S5-155U series.
The CP 2430 is a double master that can operate two independent AS-i networks
each with a maximum of 31 slaves.
If required, the AS-i master can be used like an I/O module in the PLC to address
the input and output data of the AS-i slaves. In the address area of the PLC, it
occupies 16 input and 16 output bytes per AS-i chain, in other words a total of 32
input bytes and 32 output bytes. In terms of programming the PLC, there is no
difference between an AS-i master and standard I/O modules. The software only
needs a minimum of adaptation.
If handling blocks are used, the full range of functions according to the AS-i master
specification is available. As an option, the I/O data can also be transferred to the
CP 2430 using handling blocks. In this case, the CP 2430 does not occupy any
space in the I/O address area of the controller.
(4 x slave)
= slave ASIC
AS-i power
supply unit
Segment B
Segment A
CP 2430
AS-i cable
Active AS-Interface
application module
(with slave ASIC)
Passive AS-Interface application module
Binary sensors and actuators
Binary sensors and actuators
Active or passive
AS-Interface user module
Actuator or sensor
with direct
connection
Branch of the
AS-i cable
SIMATIC NET Industrial Ethernet
or
SIMATIC NET PROFIBUS
AS-i cable
(with integrated
AS-i connection)
(without integrated AS-i connection)
(without integrated
AS-i connection)
Figure 2-4 Example of a SIMATIC S5 System Configuration with the CP 2430