Communication Protocols; Modbus Rtu - Calypso Instruments ULTRA-LOW-POWER ULTRASONIC SUMMIT HEATED User Manual

3 Communication Protocols

3.1 MODBUS RTU

3.1.1 Modbus Wiring
MODBUS Output:
White
GND (Power -)
Brown
VCC (Power +)
3.1.2 Modbus Configuration
The ULP SUMMIT HEATED can be set up by using a special configuration app made by
Calypso Instruments.
In order to use the app, you should download the configurator from our website at
www.calypsoinstruments.com.
The following can be changed with the configurator:
Data Protocol: RS485 to Modbus (or viceversa)
Baudrate: The number of signal units per second that the wind sensor sends. A baud can
contain several bits.
Data rate: The number of bits that are transmitted per unit time through a digital transmis-
sion system or between two digital devices.
Wind Filter: You can choose between the sensibility of the wind filter.
baudrate:
1200 to 115200 (8n1) bauds
output rate:
0.1 to 10 Hertz (Depends on the filter you select)
output units:
m/s, knots or km/h
Power consumption:
Ultra-Low-Power (MODBUS) : 0.25 mA @5V, 1 Hz. (NO HEATING)
Power Consumption will vary depending on the baudrate & output rate chosen
ULP SUMMIT HEATED User Manual
Yellow
DATA RX / SDA
Green
DATA TX/ SCL
2A, @12V, 1Hz (HEATING)
3