Profinet Io; General; I/O Configuration; Gsdml File - HMS Anybus Communicator User Manual

2.4 PROFINET IO

2.4.1 General

The PROFINET IO interface provides PROFINET IO Soft Real-Time Communication. PROFINET
is the open Industrial Ethernet standard for Automation from PROFIBUS International.
Supported Features
• Soft Real-Time (RT) communication
• Cyclic data exchange (10 ms cycle time)
• Acyclic Data exchange (Record Data Requests)
• Up to 64 slots / 1 subslot
• Up to 512 bytes of I/O in each direction
• TCP/IP Configuration via DCP (Discovery and Configuration Protocol)

2.4.2 I/O Configuration

PROFINET makes a distinction between fast cyclical data, a.k.a. "IO data", and acyclical data, called
"Record Data". By default, all data in the input and output data areas are exchanged as IO data. It is
however possible to specify how much data to exchange as IO data, and how much data to exchange
using acyclic Record Data read/write requests.
On PROFINET, the IO data is built up by I/O modules. In the case of the ABC, the actual I/O module
configuration is adopted from the I/O controller/supervisor, provided that the total I/O sizes specified
by the IO controller does not exceed the sizes specified in the Anybus Configuration Manager.
For information about how the IO and Record Data relates to the input and output data areas, see "Da-
ta Representation (IO Data & Record Data)" on page 22.

2.4.3 GSDML File

On PROFINET, all devices are associated with a GSDML file. The GSDML file is the equivalent of the
PROFIBUS GSD file, and is based on the EXtensible Markup Language (XML).
This file holds information about the device (in this case the Anybus Communicator), its features, and
possible I/O configurations. The latest version of the GSDML file for the Anybus Communicator can
be downloaded from the HMS website, "www.anybus.com".
Anybus Communicator PROFINET User Manual
Basic Operation 21
Doc: HMSI-27-309, Rev. 3.11