Frick QUANTUM Series - CONNECTIONS; Generic DCS;PLC Setup; Typical MODBUS (ASCII) Setup

S90-010 CS (APR 08) FRICK
®
QUANTUM™ COMPRESSOR CONTROL PANEL
Page 78 COMMUNICATIONS SETUP
CONNECTIONS
Quantum™
Quantum™
RS-422 / RS-485
RS-422 / RS-485
Modicon PLC with a
MODBUS
communications port
Typical MODBUS (ASCII) Setup
DCS (Distributed
Control System) OR
PLC
With serial interface
adapter card that
supports our
MODBUS and/or our
AB SLC 500 DF1
protocol (SEE
ABOVE)
Generic DCS/PLC Setup
RS-232 RS-422 RS-485
Direct to one
Quantum™
RS-422 / RS-485
RS-232 to 422/485
Converter
RS-232
RS-232 to 422/485
Converter
Quantum™
RS-232
Direct to one
RS-232
Quantum™
Quantum™
Quantum™
Quantum™
Quantum™
Quantum™ Quantum™