Table of Contents
Advertisement
B8976111/02
AS-i Master Module CP 142-2
3 Standard Operation of the CP 142-2
Standard operation with the CP 142-2 in the ET 200X distributed I/O station is the most common and
simplest application of the CP 142-2. It allows access to the input and output data of the AS-i slaves.
This type of operation corresponds to the M0 profile of the AS-i master specification and is available
immediately after plugging in the module. No extra FC is required.
3.1 Addressing the CP 142-2
From the point of view of the user program, how the CP 142-2 is addressed depends mainly on the
basic module you are using.
3.1.1 Addressing using the BM141/BM142
From the point of view of the PROFIBUS DP master, the CP 142-2 occupies 16 input bytes and 16
output bytes. How these bytes are addressed depends on the PROFIBUS-DP master you are using
and the configuration tool.
For more detailed information, refer to /4/ and the manuals for your PROFIBUS-DP master.
3.1.2 Addressing when using the BM147
The CP 142-2 occupies 16 input bytes and 16 output bytes in the area of the analog I/Os of the
BM147.
The start address of this address area is decided by the slot of the CP 142-2.
Module
Basic module
CP
CP
CP
CP
CP
CP
CP
Slot number
1
2
3
4
5
6
7
8
9
10
Start addresses
-
256
272
288
304
320
336
352
3-1
Advertisement
Table of Contents
