Representation Of Analog Values - Siemens SIMATIC ET 200SP Manual

Representation of analog values

This appendix shows the analog values for all measuring ranges that you can use with
the analog module.
Measured value resolution
The resolution of the analog values differs depending on the analog module and its
assigned parameters.
The table below shows the representation of binary analog values and of the associated
decimal and hexadecimal units of the analog values.
Each analog value is written left aligned to the tags. The bits marked with "x" are set to "0".
Note
The digitalized temperature values are the result of a conversion in the analog module.
The following resolution therefore does not apply to temperature values.
Table B- 1 Resolution of the analog values
Resolution in bits
including sign
14
15
16
Analog Input Module AI 4xI 2-/4-wire ST (6ES7134-6GD00-0BA1)
Manual, 07/2014, A5E03551866-AC
Values
Decimal Hexadecimal
4 4
H
2 2
H
1 1
H
Analog value
High byte
Sign 0 0 0 0 0 0 0
Sign 0 0 0 0 0 0 0
Sign 0 0 0 0 0 0 0
B
Low byte
0 0 0 0 0 1 x x
0 0 0 0 0 0 1 x
0 0 0 0 0 0 0 1
31