X20 system modules • Digital input modules • X20DI4760
998
X20 system User's Manual 3.10
4.13.10.10.3 Digital inputs
Unfiltered
The input state is collected with a fixed offset to the network cycle and transferred in the same cycle.
Filtered
The filtered status is collected with a fixed offset to the network cycle and transferred in the same cycle. Filtering
takes place asynchronously to the network in multiples of 200 µs with a network-related jitter of up to 50 µs.
4.13.10.10.3.1 Digital input filter
Name:
ConfigOutput03
This register can be used to specify the filter value for all digital inputs.
The filter value can be configured in steps of 100 μs. It makes sense to enter values in steps of 2, however, since
the input signals are sampled every 200 μs.
Data type
Value
Filters
0
No software filter
2
0.2 ms
...
...
USINT
250
25 ms - Higher values are limited to this value
4.13.10.10.3.2 Input status of digital inputs 1 to 4
Name:
DigitalInput or
DigitalInput01 to DigitalInput04
PowerSupply
The input status of digital inputs 1 to 4 is mapped in this register.
Function model 0 - Standard only:
The "packed inputs" setting in the AS I/O configuration is used to determine whether all of this register's bits
should be set up individually as data points in the AS I/O mapping ("DigitalInput01" through "DigitalInput02" and
"PowerSupply") or whether this register should be displayed as an individual USINT data point ("DigitalInput").
Data type
Value
Information
0 to 15
Packed inputs = on
USINT
See bit structure
Packed inputs = off or function model <> 0 - Standard
Bit structure:
Bit
Name
Value
Information
0
DigitalInput01
0 or 1
Input status - Digital input 1
...
...
3
DigitalInput04
0 or 1
Input status - Digital input 4
4 - 6
Reserved
0
0
Supply voltage too low
7
PowerSupply
1
Supply voltage >80 VAC
4.13.10.10.4 Positive edge counter on digital inputs
Name:
Counter01 to Counter04
These registers cyclically count the positive edges on the individual channels.
Data type
Value
USINT
Positive edge counter on channel, cyclic
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