General Specifications – 104S

Operating in server mode (only), the 104S protocol implementation accepts commands

from an IEC-60870-5-104 Client to read data stored in or write data into the gateway’s

internal database memory registers. The 104S implementation is also capable of generating

unsolicited messages. Unsolicited messages can be either spontaneous (event-driven) or

cyclic (timing-driven) communication.

The remote Client device uses the fully-configurable gateway memory database to control

outputs and monitor inputs to devices on the

IEC 104 network.  Changes to the gateway database can also be used to transfer monitoring

and control data to devices connected to

the gateway using another installed network protocol. The 104S gateway thus provides a data

transfer solution between an IEC 60870

5-104 Ethernet network and other serial and Ethernet network protocols, as well as proprietary interfaces.