15.1.15
echolink one2PROFINET V. 1.0
16
Softing Industrial Automation GmbH
Mode of operation of the system
7
Mode of operation of the system
7.1 General explanation
Communication can be split into seven layers, Layer 1 to Layer 7, in accordance with the
ISO/OSI model.
The Softing AG Gateways convert Layers 1 and 2 of the customized bus system (RS485 /
RS232 / RS422) to the corresponding Fieldbus system. Layers 3 and 4 are being covered by the
UDP/IP-protocol, TCP/IP-protocol. The Layers 5 and 6 are blank. Layer 7 is converted in accor-
dance with chapter 7.3.
The Gateway can be configured via the software WINGATE.
7.2 Interfaces
The Gateway features the RS232-, RS422- and RS485-interfaces. The switching of the inter-
faces is done via the configuration (Parameter 232 Interface).
7.3 Data exchange
All data is transferred by the Gateway in dependence of the configuration.
7.4 Possible data lengths
The table below shows the maximum transferable data:
Input data
max. 1440 bytes
variable: here maximum value
Output data
max. 1440 bytes
variable: here maximum value
7.5 Startup phase
The Gateway is parameterized and configured by the PROFINET-IO-controller during the startup
phase. Only after a correct termination of the startup phase the data exchange with external
devices will take place.
