Siemens SIMATIC ET 200AL Equipment Manual - Page 19

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Siemens SIMATIC ET 200AL Equipment Manual
Parameters/address space

4.3 Address space

4.3
Address space
The figure below shows the assignment of the address space for the digital output module
DQ 8x24VDC/2A 8xM12 with value status (Quality Information, QI).
The address space for the value status is allocated by the module, if the value status is
configured using the PROFINET interface module.
Figure 4-1
Configuration options of the digital output module DQ 8x24VDC/2A 8xM12
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 output module. The value status of the outputs is assigned to bits 0 to 7 in input
byte x. This additional information provides information regarding the validity of the digital
values or channel status.
Bit = 1: No error on channel.
Bit = 0: Error on channel.
This means:
• Short-circuit of output to ground or
• Parameter error or
• For channels 4 ... 7: Missing load voltage 2L+
18
Address space
Digital output module DQ 8x24VDC/2A 8xM12 (6ES7142-5AF00-0BA0)
Equipment Manual, 08/2021, A5E36683723-AB