HMS Networks Anybus CompactCom 40 Network Manual page 112

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Anybus CompactCom 40 - PROFINET IRT Transparent
Ethernet
T_IO_InputMin
T_IO_InputMin consists of two delays:
• The delay added by the Anybus CompactCom. This is the time from when the message is available in the
device until it is available on the network. This delay is 12 μs in the current implementation.
• The delay added by the application. This is the time it takes for the application from when inputs are
captured, to when the input data is available to the Anybus CompactCom. This delay must be measured by the
application designer. The measured value shall be written to Attribute #5 (Input Processing).
The value of T_IO_InputMin must be entered in the GSD file for every submodule supporting synchronous
operation. See example GSD entries below.
T_IO_Output
T_IO_Output is equivalent to attribute #2 (Output Valid). The value is configured from the IO controller.
T_IO_Input
T_IO_Input is the configured Cycle Time (T_DC) minus the Input Capture time (Attribute #3). The value is
configured from the IO controller.
T_DC
T_DC = Cycle Time (Attribute #1)
11.5.6. GSDML Entries
The following must be added to the GSDML file for modules supporting isochronous operation:
IsochroneModeInRT_Classes="RT_CLASS_3" in the <InterfacesubmoduleItem>
<IsochroneMode T_DC_Base="8" T_DC_Min="1" T_DC_Max="16"
T_IO_Base="1000"
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T_IO_OutputMin="X" T_IO_InputMin="Y"/>
Sync Object (EEh)
SCM-1202-021 Version 2.6