
Interface to the User Program in the S7-200 CPU
2-7
SIMATIC NET CP 243-2 AS-i Master
C79000-G8976-C142/02
2.3
Meaning of the Data in the Digital Module
Overview
The digital module of the CP 243-2 consists of four registers:
Identification register, 8 bits (I/O module identifier)
Error register, 8 bits
Input register 8DI (status byte of the CP 243-2)
Output register 8DO (control byte of the CP 243-2)
Essentially, the functions shown in the following diagram are handled via these
registers:
CP 243-2
User program
Digital module (8DI/8DO)
Analog module (8AI/8AO)
S7-200 CPU
ÍÍ
ÍÍ
ÍÍ
ÍÍ
ÍÍ
ÍÍ
ÎÎ
ÎÎ
ÎÎ
ÎÎ
ÎÎ
ÎÎ
AS-i master
AS-i cable
Status/error information
Control of the CP
Bank selection
Figure 2-2
Содержание SIMATIC NET CP 243-2
Страница 4: ...Preface ii SIMATIC NET CP 243 2 AS i Master C79000 G8976 C142 02 ...
Страница 8: ...Contents vi SIMATIC NET CP 243 2 AS i Master C79000 G8976 C142 02 ...
Страница 26: ...Technical Description and Installation Instructions 1 18 SIMATIC NET CP 243 2 AS i Master C79000 G8976 C142 02 ...
Страница 64: ...Access to the Data of the AS i Slaves 3 16 SIMATIC NET CP 243 2 AS i Master C79000 G8976 C142 02 ...
Страница 68: ...Signaling Errors and Diagnostics in the User Program 4 4 SIMATIC NET CP 243 2 AS i Master C79000 G8976 C142 02 ...
Страница 128: ...Command Interface 5 60 SIMATIC NET CP 243 2 AS i Master C79000 G8976 C142 02 ...
Страница 134: ...Dealing with Problems Error Displays 6 6 SIMATIC NET CP 243 2 AS i Master C79000 G8976 C142 02 ...
Страница 142: ...Notes on the CE Mark C 2 SIMATIC NET CP 243 2 AS i Master C79000 G8976 C142 02 ...
Страница 148: ...Glossary Glossary 4 SIMATIC NET CP 243 2 AS i Master C79000 G8976 C142 02 ...