CAL Controls CALCOMMS 9300 User Manual

Installation/Cabling
Installation/Cabling
2
Tx Rx (+)
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
To
additional
units
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
3300/9300
unit 2
Tx Rx (-)
3300/9300
unit 1
Gnd
Tx Rx (+)
Tx Rx (-)
Gnd
Daisy chained connections
Connections if PC 485 card used
To RS 485 Interface
Either plug in board or
separate converter
Note:
Where separate RS 485
interface is used, refer to
manufacturers instructions for
connection details
To
RS 485
interface
CAL 3300 CAL 3300 CAL 3300 CAL 3300
COM port
RS485 Connections
RS-485 Is a half duplex serial communications link and is the
standard most commonly used for industrial applications due
to it's high noise immunity and multi-drop capability. It
enables a PC to communicate with up to 32 instruments
over distances up to 1200 metres, and requires the addition
of an RS-485 interface card, or a separate RS-232/485
converter.

CAL Controls CALCOMMS 9300 Specifications

General

Brand	CAL Controls
Model	CALCOMMS 9300
Category	Temperature Controller
Language	English