X20 system modules • Digital mixed modules • X20DM9324
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X20 system User's Manual 3.10
4.14.2.10.5 Monitoring status of the digital outputs
On the module, the output states of the outputs are compared to the setpoint states. The control of the output
driver is used for the setpoint states.
A change in the output state resets monitoring for that output. The status of each individual channel can be read.
A change in the monitoring status generates an error message.
4.14.2.10.5.1 Status of digital outputs 1 to 4
Name:
StatusInput01
StatusDigitalOutput01 to StatusDigitalOutput04
The status of digital outputs 1 to 4 is mapped in this register.
Function model 0 - Standard only:
The "packed outputs" setting in the AS I/O configuration is used to determine whether all of this registers'
bits should be set up individually as data points in the AS I/O mapping ("StatusDigitalOutput01" through
"StatusDigitalOutput0x") or whether this register should be displayed as an individual USINT data point
("StatusInput01").
Data type
Value
Information
0 to 15
Packed outputs = on
USINT
See bit structure
Packed outputs = off or function model <> 0 - Standard
Bit structure:
Bit
Value
Information
0
Channel 01: No error
0
StatusDigitalOutput01
1
Channel 01: Short circuit or overload
...
...
0
Channel 04: No error
3
StatusDigitalOutput04
1
Channel 04: Short circuit or overload
4.14.2.10.6 Minimum cycle time
The minimum cycle time defines how far the bus cycle can be reduced without communication errors occurring.
It should be noted that very fast cycles decrease the idle time available for handling monitoring, diagnostics and
acyclic commands.
Minimum cycle time
Without filtering
100 μs
With filtering
150 μs
4.14.2.10.7 Minimum I/O update time
The minimum I/O update time defines how far the bus cycle can be reduced while still allowing an I/O update to
take place in each cycle.
Minimum I/O update time
Without filtering
100 μs
With filtering
200 μs
