Siemens Simatic ET 200SP User Manual page 31

Parameters/address space
4.6 Address space
Value status (Quality Information, QI)
The value status is always activated for the following module versions:
● AI 4xTC HS V1.0, QI
● AI 4xTC HS V1.0, MSI
● AI 4xTC HS V1.0, REAL, QI
● AI 4xTC HS V1.0, REAL, MSI
Evaluating the value status
An additional byte is occupied in the input address space if you enable the value status for
the analog module. Bits 0 to 3 in this byte are assigned to a channel. They provide
information about the validity of the analog value.
Bit =1: No fault is present on the channel.
Bit = 0: The channel is disabled or the wiring, the value created on the channel, etc. is
incorrect.
Address space for configuration as 1 x 4-channel AI 4xTC HS V1.0, QI
The following figure shows the assignment of the address space with value status (Quality
Information (QI)). The addresses for the value status are only available if the value status is
enabled.
Figure 4-7
30
Address space for configuration as 1 x 4-channel AI 4xTC HS V1.0, QI with value status
Analog input module AI 4xTC HS (6ES7134-6JD00-0DA1)
Manual, 03/2019, A5E42405270-AB