The IEC 60870-5-103 implementation supports two parallel

serial bus connections to two different masters. Besides basic

standard functionality, the relay supports changing of the active

setting group and uploading of disturbance recordings in IEC

60870-5-103 format. Further, IEC 60870-5-103 can be used at

the same time with the IEC 61850 protocol.

DNP3 supports both serial and TCP modes for the connection

of up to five masters. Changing the active setting and reading

fault records are supported. DNP serial and DNP TCP can be

used in parallel. If required, both IEC 61850 and DNP can be run

simultaneously.

The relay supports Profibus DPV1 with support of SPA-ZC 302

Profibus adapter. If Profibus is required, the relay must be

ordered with Modbus serial options. Modbus implementation

includes SPA protocol emulation functionality. This functionality

enables connection to SPA-ZC 302.

When the relay uses the RS-485 bus for the serial

communication, both two- and four-wire connections are

supported. Termination and pull-up/down resistors can be

configured with DIP switch on the communication card so that

external resistors are not needed.