Address Space - Siemens SIMATIC ET 200SP Manual

4.4

Address space

Configuration options
The following configurations are possible:
● Configuration 1: Without value status
● Configuration 2: With value status
Evaluating the value status
If you enable the value status for the analog module, an additional byte is occupied in the
input address space. Bits 0 to 3 in this byte are assigned to a channel. They provide
information about the validity of the analog value.
Bit = 1: There are no faults/errors on the module.
Bit = 0: Channel is disabled or there is a fault/error on the module.
If a fault/error occurs on a channel with this module, the value status for all channels is 0.
Address space
The following figure shows the assignment of the address space for the AI 4×I 2-/4-wire ST
with value status (Quality Information (QI)). The addresses for the value status are only
available if the value status is enabled.
Figure 4-2
Analog Input Module AI 4xI 2-/4-wire ST (6ES7134-6GD00-0BA1)
Manual, 07/2014, A5E03551866-AC
Address space of the AI 4×I 2-/4-wire ST with value status
Parameters/address space
4.4 Address space
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