88FT05 ABB GJR2393100R1200 Coupling Modulefor Remote Bus

Description:

This module can be used, together with the 88TK05 stationbus coupling module,in any PROCONTROL cabinet.
The module is equipped with
a standard interfacefor the PROCONTROL remote bus branch linean RS485 interfacefor the 88TK05 station bus coupling modulea module data interface
for the 88TK05 station bus coupling module
The module transfers station bus data to and from the remoteDUS.
The 88FT05 module does not use any module address in thePROCONTROL station.
Via the RS485 interface, it is supplied with its operating voltageUS(+24 V). The external terminating resistors of the RS485interface are fed by the 88FT05 module.
The telegrams received from the remote bus are monitored fordistorted characters. This guarantees fault-free transfer.
The telegram transmitters are monitored for excessively longtelegram sending, and the noise transmitters are monitored folexcessively long noise signals.
The transmission levels of telegram transmitters and of noisetransmitters are measured and are transferred through theRS485 interface to the 88TK05 station bus coupling module.The 88TK05 monitors these transmission levels.
The module generates the baseband (within 0.1 ... 2 MHz) required for telegram transmission on both remote bus chan.nels, as well as the noise signal (within 5 ... 7 MHz) required foracknowledgement and event detection.lt converts thebi-phase signals of the remote bus into the series-mode sig.nals (TTL level) of the RS485 interface and vice versa.
The 24 V supply of the transmitter output stages can be dis.connected by an ESP signal of the RS485 interface using a relay.