Connecting A Smart Sensor Via Rs-485 - Kipp & Zonen LOGBOX SE Instruction Manual

8.9 Connecting a SMART sensor via RS-485

Up to 8 Modbus® SMART sensors can be addressed by the LOGBOX SE. Each one needs a unique address. Instructions for
setting the address are in section 10.9
All Kipp & Zonen SMP- SGR- SUV - SHP sensors have the following connections:
The sensors need constant power to stabilise and to be able to provide fast response to irradiation level changes.
blue and black wire(s)  GND
white wire(s)  BATTOUT or parallel to POWER input
yellow Modbus® B/B'/+ wire(s)
grey Modbus® A/A'/- wire(s)
The Kipp & Zonen RT1 rooftop sensor with black data cable uses:
The blue and green wire(s)  GND
The red wire  BATTOUT or parallel to POWER input
The grey Modbus® Data + wire(s)
The yellow Modbus® Data - wire(s)
All remaining wires need to be isolated properly.
Typical power consumption SMP-V for maximum output (1 V)
5 VDC 50 mW
12 VDC 55 mW
24 VDC 60 mW
Typical power consumption SMP-A for maximum output (20mA)
5 VDC 77 mW
12 VDC 83 mW
24 VDC 100 mW
 RS-485B+ on LOGBOX SE board
 RS-485A- ""
 RS-485B+ on LOGBOX SE board
 RS-485A- ""
approx. 10.0 mA
approx. 4.5 mA
approx. 2.5 mA
approx. 28 mA with 100Ω load resistor
approx. 24 mA with 100Ω load resistor
approx. 6 mA with 100 Ω load resistor
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