Version
Document
Preliminary 003
Access V4.X Configuration manual
5 (33)
2019-05-13
The communication ports in the Access controller Port 1 (Ext-link), Port 2 (BMS) and Port 3 (Int-link 1|2)
can be configured for particular function.
Port function
These ports can operate as follows:
EXOline slave
–
Connection to EXO SCADA system and application tool;
EXOline master
–
Connection to expansion units and Pressigo pressure transmitters;
Modbus slave
–
Connection to BMS via Modbus RTU;
Modbus master
–
Bus communication to components inside AHU;
BACnet MSTP slave - Connection to BMS via BACnet MSTP;
External display
–
Connection to touch display;
EFX master
–
communication to expansion units via EFX protocol.
Message format
For proper communication, the right message format needs to be configured. Available formats and
description
Baud rate
Description
9k6 bps
9600bps
14k4 bps
14400bps
19k2 bps
19200bps