Inputcircuitry; Digital Representation Ofmeasuring Values - Siemens SIMATIC S5 1P 243 Equipment Manual

Function Description
3.3.3 Input Circuitry
At the pins AR1 to AR8 of the analog signal jumping block, the analog input AIO to A17 can be not
only active, but they can also be switched to the inputs of the analog–value conditioning circuit or
to the outputs of the difference amplifiers.
Input circuitry of the multiplexer input (per input)
Front connector
100
Multiplexer
+15 v –15 v
3.3.4 Digital Representation of Measuring Values
For representation of the analog values in digital form, two bytes (per word) are required.
LOW byte
HIGH byte
I
Module address +6 Module address +7
I
3 – 5