Siemens SIDOOR ATD401W System Manual page 138

Controllers
4.5 Relay and fieldbus interfaces
MAC addresses
The ATD430W IO device uses a total of three MAC addresses. The IO device itself has one
MAC address and the two ports (Port 1, Port 2) each have an incremented MAC address.
See the following example:
IO device:
Port 1:
Port 2:
Supported PROFINET functionality
The ATD430W IO device supports the following functionality of conformance classes A, B
and C (CC-A, CC-B, CC-C).
● Cyclic data exchange (RT)
● Acyclic parameter data (Read/Write Record)
● Device diagnostics, alarms (alarm handling)
● Device identification (I&M 0)
● Extended device identification (I&M 1 to 4)
● Topology information (LLDP)
● Network diagnostics (SNMP)
● Port-related statistics (PDEV)
● Automatic addressing (DCP)
● Media redundancy (MRP)
● Isochronous data exchange (IRT)
Cyclic data exchange
Cyclic data communication contains the data that the central processing unit sends to the IO
devices so that it can be output to the outputs as well as the data that an IO device reads in
at its inputs and sends to the central processing unit for processing. Non-isochronous data
exchange is called RT. RT telegrams are transferred directly via Ethernet.
Acyclic parameter data
Acyclic data communication consists of sending parameterization and configuration data to
the IO device on starting or sending a diagnostic message from the IO device to the central
processing unit during ongoing operation. Acyclic data uses UDP/IP.
Device diagnostics, alarms
Alarms are special acyclic messages that are sent from the IO device to the controller
whenever required. They are time-critical and therefore sent directly via Ethernet just like
cyclic data. Contrary to cyclic data, however, they must be confirmed by the recipient.
Besides generating standard alarms, the ATD430W generates a diagnostic alarm, based on
the GSD definition, in the event of disruptions on the internal SIDOOR bus.
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ATD4xxW Door Controller for Industrial Applications
System Manual, 01/2017, A5E38080677-AB