Siemens SIMATIC ET 200eco PN M12-L Equipment Manual page 45

Modbus TCP
6.1 Functions/parameters/address space
Address space for configuration as 1 x 8-channel DQ 8x24VDC
The following figure shows the address space allocation for the configuration as 8-channel
I/O device digital outputs without value status.
Figure 6-1
Value status (Quality Information, QI)
The value status is always returned with the following configuration options:
• DQ 8x24VDC QI,
• DQ 8x24VDC MSO
Evaluating the value status
An additional byte is occupied in the input address space if you enable the value status for
the I/O device. Bits 0 to 7 are assigned to a channel and provide information about the
validity of the digital output value.
Bit = 1: No error on channel.
Bit = 0: Error on channel.
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Address space for configuration as 1 x 8-channel DQ 8x24VDC without value status
I/O device digital outputs DQ 8x24VDC/2A M12-L 8xM12 (6ES7142-6BR00-0BB0)
Equipment Manual, 02/2022, A5E46575328-AC