Siemens SIMATIC ET 200eco PN M12-L Equipment Manual page 48

Modbus TCP
6.1 Functions/parameters/address space
Address space for configuration as 1 x 16-channel DI 16x24VDC
The following figure shows the address space allocation for the configuration as 16-channel
I/O device digital inputs without value status.
Figure 6-1 Address space for configuration as 1 x 16-channel DI 16x24VDC without value status
Value status (Quality Information, QI)
The value status is always returned with the following configuration options:
• DI 16x24VDC QI
• DI 16x24VDC MSI
Evaluating the value status
An additional two bytes are 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 input value.
Bit = 1: No error on channel.
Bit = 0: Error on channel.
NOTE
Value status with diagnostics
With pending diagnostics, the value status of the affected channel is always 0.
Exception: If you disable the wire break detection and message parameter, the value status is
not affected by a wire break.
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I/O device digital inputs DI 16x24VDC M12-L 8xM12 (6ES7141-6BH00-0BB0)
Equipment Manual, 03/2023, A5E46570510-AD