HMS Networks Anybus CompactCom 40 Network Manual page 20

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Anybus CompactCom 40 - PROFINET IRT Transparent
Ethernet
4. PROFINET Implementation Details
4.1. General Information
This chapter covers PROFINET specific details in the Anybus implementation. Note that the use of such
functionality may require in-depth knowledge in PROFINET networking internals and/or information from the
official PROFINET specification. In such cases, the people responsible for the implementation of this product are
expected either to obtain these specifications to gain sufficient knowledge or limit their implementation in such a
way that this is not necessary. The GSD file must be changed to reflect all changes.
Implementation overview:
Conformance Class
Performance Characteristics
Device Model
Slots & Subslots
IO Data
See also...
• Electronic Data Sheet (GSD) (page 6)
4.2. Application Process Instances (API)
As mentioned previously, acyclic requests towards API 0 are forwarded to the Application Data Object.
Cyclic data exchange is by default carried out through API 0 (i.e. the Anybus associates modules and submodules
with API 0).
See also...
• Application Data Instances (ADIs) (page 10)
Page 12 of 177
The Anybus module complies to conformance class C
• 100 Mbps, full duplex with autonegotiation enabled as default
• Real Time (RT) communication, 250 μs cycle time
• Isochronous Real Time (IRT) communication, 250 μs cycle time
• One IO Device instance
• The IO Device instance includes an Application Process referenced by its identifier (API). API 0 (zero)
is implemented by default
• The API implements one or more slots
• Each Slot implements one or more subslots
• Each subslot may implement one or more Channels
Up to 128 subslots in total
1440 bytes of IO data in each direction, including status bytes (4 bytes for DAP submodules + 1 byte
per additional submodule)
PROFINET Implementation Details
SCM-1202-021 Version 2.6