Siemens SIMATIC NET Specifiche Pagina 152

  • Scaricare
  • Aggiungi ai miei manuali
  • Stampa
Vedere la pagina 151
142 Siemens Simatic S7 Driver Online Help
These values are used by multiplying the time resolution to the Binary Coded
Decimal (BCD) value in bits 0-11. For example, if the BCD value is 345 and the time
resolution is 0.1, the value in timer memory is 34.5 seconds.
To read and write timer values correctly, use TBCD signal conditioning.
Counter Memory
Counter memory is structured as follows:
To read and write counter values correctly, use 3BCD signal conditioning. If you
receive data in S5 Counter format, use S5CO signal conditioning instead.
Understanding Data Types
The SI7 driver uses the data type specified in the Data Type field for the datablock, if
you do not specify a database block hardware option. When a hardware option is
specified, it overrides the data type.
NOTE: You can override only BYTE and CHAR data types.
Bit
Value
15
Not
Used
14
Not
Used
13
Not
Used
12
Not
Used
11
3BCD
value
0
3BCD
value
1
3BCD
value
2
3BCD
value
3
3BCD
value
4
3BCD
value
5
3BCD
value
6
3BCD
value
7
3BCD
value
8
3BCD
value
9
3BCD
value
10
3BCD
value
0-9 0-9 0-9
Vedere la pagina 151
1 2 ... 147 148 149 150 151 152 153 154 155 156 157 ... 267 268

Commenti su questo manuale

Nessun commento