Configuration modes for digital inputs/outputs
3.3 Parameters/address space
Digital input/Digital output module DIQ 16x24VDC/0.5A 8xM12 (6ES7143-5AH00-0BA0)
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Equipment Manual, 08/2021, A5E38688112-AD
Configuration mode DI8/DQ8
In DI8/DQ8 configuration mode, the address space is reduced by the fixed parameter
assignment of the channels.
Figure 3-5
Address space in DI8/DQ8 configuration mode
Configuration mode DIQ MIX
In DIQ MIX configuration mode, the address space is reduced by the fixed parameter
assignment of the channels.
Figure 3-6
Address space in DIQ MIX configuration mode
Evaluating the value status
An additional four bytes are occupied in the input address space if you enable the value
status for the digital input/digital output module. The value status of the inputs is assigned to
the input bytes x + 2 and x + 3. The value status of the outputs is assigned to the input bytes
x + 4 and x + 5. 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.
If the channel is configured as input, this means:
•
Short-circuit of an encoder supply to ground, or
•
Parameter error, or
•
For channels 8 ... 15: Missing load voltage 2L+
If the channel is configured as output, this means:
•
Short-circuit of the output to ground, or
•
Parameter error, or
•
For channels 8 ... 15: Missing load voltage 2L+
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