Siemens CP 243-2 User Manual
Interface to the User Program in the S7-200 CPU
2-2
SIMATIC NET CP 243-2 AS-i Master
C79000-G8976-C142/02
2.1
Overview
CP 243-2 as Expansion Module in the S7-200
The CP 243-2 occupies 2 consecutive expansion module slots in the S7-200:
Digital module 8DI/8DO
Analog module 8AI/8AO
CP 243-2
User program
Digital module (8DI/8DO)
Analog module (8AI/8AO)
Binary input/output data of the AS-i slaves
Analog input/output data of the
AS-i slaves
AS-i slaves
AS-i diagnostic information (delta list)
AS-i commands and response data
Status/error information
Control of the CP
Bank selection
S7-200 CPU
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AS-i master
AS-i cable
Figure 2-1
Digital Module
The digital module occupies 8 input and 8 output bits in the address area of the
digital inputs and outputs. The S7-200 CPU and the CP 243-2 are coordinated via
the digital module.
digital inputs and outputs. The S7-200 CPU and the CP 243-2 are coordinated via
the digital module.
The data to be addressed in the analog module by the user program is selected
using bank select bits.
using bank select bits.