Siemens SIMATIC NET CP 142-2, Руководство пользователя, Страница: 13 / 84

B8976111/02 AS-i Master Module CP 142-2
2-2
2.1 Overview of the Module
2.1.1 Introduction
The CP 142-2 module can be operated in the ET 200X distributed I/O system. It allows the
connection of an AS-i chain to the I/O device. The special feature of the ET 200X distributed I/O
system is its rugged construction complying with safety classes IP 65, IP 66 and IP 67.
AS-i cab le
(4 x slaves)
B ina ry se n sors an d a ctu a to rs
w ith o ut slave ASIC
A c tive o r pa ssive
A S -In terfa ce applica tio n m o du le
B in a ry sen sors a nd a ctu ators
w ith slave A SIC
Ac tive
AS -i a p p l. m o d ule
(w ith slave A S IC )
P R O F I B U S - D P m a s t e r
P R O F I B U S
P R O F I B U S
E T 2 0 0 X
C P 1 4 2 - 2
Round cable
Passive AS-i application module
(w ith o ut sla ve A S IC )
Ac tu a tor or se n so r
w ith direc t co n ne c tion
AS-i cable
adapter
= S lave A S IC
A S -i pow e r
s up p ly u nit
Figure 2-1 Use of the Master Module CP 142-2 in the ET 200X
Components Supplied
The product CP 142-2 consists of the following:
1. CP 142-2 module
2. Product Information bulletin
The STEP 7 block FC “ASI_3422” required for extended operation of the CP 142-2 is shipped with
this manual.