HMS Networks Anybus CompactCom 40 Network Manual page 113

Sync Object (EEh)
11.5.7. Instance Attributes (Instance #1)
# Name Access Corresponding term
for PROFINET
1 Cycle time Get/Set T_DC
2 Output valid Get/Set T_IO_Output
3 Input capture Get/Set T_DC - T_IO_Input
4 Output Get T_IO_OutputMin
processing
5 Input Get T_IO_InputMin - 12
processing μs
6 Min cycle time Get T_DC_Min
7 Sync mode Get/Set -
8 Supported sync Get -
modes
9 Control Task Get/Set CACF (Controller
cycle factor Application Cycle
Factor)
The figure below shows an example of Control Task cycle and Cycle time, with Control Task cycle factor = 3.
Control task cycle n
Cycle time
MI0/SYNC signal
Figure 7.
SCM-1202-021 Version 2.6
®
Anybus CompactCom
Data Value
Type
UINT32 Application cycle time in nanoseconds
UINT32 Output valid point relative to SYNC events, in nanoseconds
Default value: 0
UINT32 Input capture point relative to SYNC events, in nanoseconds
Default value: 0
UINT32 Minimum required time, in nanoseconds, between RDPDI interrupt and
"Output valid"
UINT32 Maximum required time, in nanoseconds, from "Input capture" until
write process data has been completely written to the Anybus
CompactCom module
UINT32 Minimum cycle time supported by the application, in nanoseconds
UINT16 This attribute is used to select synchronization mode. It enumerates the
bits in attribute 8
0: Nonsynchronous mode. (Default value if nonsynchronous mode is
supported)
1: Synchronous mode
2 - 65535: Reserved. Any attempt to set sync mode to an unsupported
value shall generate an error response
UINT16 A list of the synchronization modes the application supports.
Each bit corresponds to a mode in attribute 7
Bit 0: 1 = Nonsynchronous mode supported
Bit 1: 1 = Synchronous mode supported (Required for synchronous
application)
Bit 2 - 15: Reserved (0)
UINT16 If the synchronous control task operates at a cycle that is longer than
the data cycle (see attribute #1, Cycle time) then this attribute provides a
scaling factor for the cycle time such that:
Control task duration = Control task cycle factor x Cycle time.
The information may be used e.g. to interpolate output values, if
required by the process. Note that synchronization to the Control Task
cycle must be done by the host application.
Default: 1
Control task cycle n+1
™
40 - PROFINET IRT Transparent
Ethernet
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