Siemens SIMATIC S7 - Basic Functions for Data Transfer S7-200

SIEMENS AG PRODAVE S7
Toolbox for Data Link PGs/PCs to SIMATIC S7
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4.1.2 Basic Functions for Data Transfer S7-200
The following data can be read and/or written :
Data Type CPU 212 CPU214 CPU215 CPU216
Input Bytes EB 0 - 7 0 - 7 0 - 7 0 - 7
Output Bytes AB 0 - 7 0 - 7 0 - 7 0 - 7
Flag Bytes MB 0 - 15 0 - 31 0 - 31 0 - 31
Special Flag Bytes SM 0 - 45 0 - 85 0 - 199 0 - 199
Variable Memory VS 0 - 1023 0 - 4095 0 - 5119 0 - 5119
Timers T 0 - 63 0 - 127 0 - 255 0 - 255
Counters Z 0 - 63 0 -127 0 - 255 0 -255
For further information on data types and ranges please refer to the Manual
STEP 7 - Micro / Programming S7-200.