Technical Data
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PC Cards cifX PC/104 | Installation, Operation and Hardware Description
DOC120206UM42EN | Revision 42 | English | 2014-12 | Released | Public
© Hilscher, 2008-2014
10.2.9 PROFINET IO-Device (V3.5)
Parameter
Description
Maximum number of cyclic input data
1440 bytes
Maximum number of cyclic output data
1440 bytes
Maximum number of submodules
255 submodules per Application Relation at the same time,
1000 submodules can be configured
Multiple Application Relations (AR)
The Stack can handle up to 2 IO-ARs, one Supervisor AR and one
Supervisor-DA AR at the same time
Acyclic communication
Read/Write Record, max. 1024 bytes per telegram
Alarm Types
Process Alarm, Diagnostic Alarm, Return of SubModule Alarm,
Plug Alarm (implicit), Pull Alarm (implicit)
Supported protocols
RTC – Real Time Cyclic Protocol,
class 1 (unsynchronized), class 3 (synchronized)
RTA – Real Time Acyclic Protocol
DCP – Discovery and configuration Protocol
CL-RPC – Connectionless Remote Procedure Call
LLDP – Link Layer Discovery Protocol
SNMP – Simple Network Management Protocol
MRP – MRP Client
Topology recognition
LLDP, SNMP V1, MIB2, physical device
Identification & Maintenance
Read and write of I&M1-4
Minimum cycle time
1 ms for RT_CLASS_1
250 µs for RT_CLASS_3
IRT Support
RT_CLASS_3
Media Redundancy
MRP client is supported
Additional features
DCP, VLAN- and priority tagging, Shared Device
Baud rate
100 MBit/s
Data transport layer
Ethernet II, IEEE 802.3
PROFINET IO specification
V2.2 (legacy startup) and
V2.3 (but advanced startup only for RT) are supported
Limitations
RT over UDP not supported
Multicast communication not supported
Only one device instance is supported
DHCP is not supported
FastStartUp is not supported
The amount of configured IO-data influences the minimum cycle time
that can be reached.
Only 1 Input-CR and 1 Output-CR are supported
Using little endian (LSB-MSB) byte order for cyclic process data instead
of default big endian (MSB-LSB) byte order may have an negative impact
on minimum reachable cycle time
System Redundancy (SR-AR) and Configuration-in-Run (CiR) are not
supported
Max. 255 submodules can be used simultaneously within one specific
Application Relation
Advanced Startup according Profinet specification V2.3 is NOT yet
supported for IRT
As there is no official certification available for Profinet IO specification
V2.3 at the time of release of the stack there is no guarantee that this
implementation will pass such a certification once it is available
Reference to firmware/stack version
V3.5.26.x
Table 107: Technical Data PROFINET IO RT IRT Device Protocol
