Caron 6342 - Manual (Page 20)

6320 & 6340 Series Operations Manual Rev G 9/16/2013 Page 20 of 61
Connecting Communications or Analog Outputs (DLUX301 & DLUX302)
With the purchase of DLUX301 or DLUX302, the controllers are upgraded with
additional features such as RS485 communications, and analog outputs. A set of
terminals are provided to connect to RS485 communications and analog outputs.
Analog Outputs
DLUX301 & DLUX302 provide analog outputs as either milliamps (0-20mA, 4-20mA) or
voltage (0-5V, 1-5V, 0-10V, 0-20V) signal output that represents each of the displayed
temperature (and humidity) values. These options can be used for connection to in-
house data acquisition, recorder, or alarm system.
Factory default settings are as follows:
Parameter Analog Output Corresponding Value
Temperature 0 – 5 V 0 – 100 °C
Humidity 0 – 5 V 0 – 100 %rh
Connect shielded wires to the appropriate signal terminals: I(+) for current (mA) or V(+)
for voltage (DC). For both current and voltage outputs, COM(-) is common terminal.
The controller itself must be programmed for the voltage or current signal and
corresponding scale (see Operations Section)
Communications
RS-485 communications are intended to communicate with a PC using ModBus RTU
or Standard Bus. The maximum number of chambers connected to a single PC is
limited to 247 controllers (Modbus) or 16 controllers (Standard Bus). Chambers 6021,