Siemens SIMATIC ET 200AL, System Manual

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Parameters/address space
4.3 Address space
DI 8x24VDC 8xM8 (6ES7141-5BF00-0BA0)
Equipment Manual, 08/2021, A5E32349579-AD
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4.3 Address space
The figure below shows the assignment of the address space for the digital input module
DI 8x24VDC 8xM8 with value status (Quality Information, QI). If you are using PROFINET and
the value status was enabled, the addresses for the value status are available. The value
status is not available for PROFIBUS.
Figure 4-1 Address space
Configuration options of the DI 8x24VDC 8xM8 digital input module
You have the following configuration options:
•
Configuration 1: without value status
• Configuration 2: with value status
Evaluating the value status
An additional byte is occupied in the input address space if you enable the value status for
the digital input module. Bits 0 to 7 in this byte are assigned to a channel and provide
information on the validity of the digital input value.
Bit = 1: No error on channel.
Bit = 0: Error on channel.