X20 system modules • Analog output modules • X20AO2622
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X20 system User's Manual 3.10
4.4.4.8 Register description
4.4.4.8.1 Function model 0 - Standard
and function model 1 - I/O with fast reaction
Read
Write
Register
Name
Data type
Cyclic
Non-cyclic
Cyclic
Non-cyclic
Configuration
18
USINT
●
Communication
0
INT
●
2
INT
●
4.4.4.8.2 Function model 254 - Bus controller
Read
Write
Register
Offset
1)
Name
Data type
Cyclic
Non-cyclic
Cyclic
Non-cyclic
Configuration
18
-
USINT
●
Communication
0
0
INT
●
2
2
INT
●
1)
The offset specifies the position of the register within the CAN object.
4.4.4.8.3 Function model comparison
Function model 0: I/O without jitter (standard)
Corrected values are output in the next cycle if the minimum cycle is ≥300 μs in order to reduce jitter to a minimum.
Function model 1: I/O with fast reaction
Corrected values are output in the same cycle if the minimum cycle is ≥300 μs (optimized reactions).
Comparison of the two function models
X2X
0
1
2
3
4
5
Value transfer
I/O
0
1
2
3
4
5
X2X
0
1
2
3
4
5
Value transfer
I/O
0
1
2
3
4
5
Function model 0: I/O without jitter
Function model 1: I/O with fast reaction
Values output in the next cycle
Values output in the same cycle
Internal processing time of the I/O module
Summary of Contents for X20 System
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