Communication Protocols - Calypso ULP STD User Manual

6. Communication Protocols

6.1 MODBUS Wiring, Configuration and
Registers
6.1.1 Modbus Wiring
MODBUS RTU Output:
White
GND (Power -)
Brown
VCC (Power +)
6.1.2 Modbus Configuration
The ULP STD 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 configu-
rator:
Change the unit from RS485 to Modbus (or vice-
versa)
Baudrate: Is the number of signal units per
second. A baud can contain several bits.
Data rate: The number of bits that are transmit-
ted per unit time through a digital transmission
system or between two digital devices.
Wind Filter: You can choose between the sensibi-
lity of the wind filter
baudrate:
2400 to 115200 (8n1) bauds
output rate:
0.1 to 20 Hertz
output units:
m/sec., knots or km/h
Power consumption:
Ultra-Low-Power (MODBUS) : 1 mA @5V,1 Hz.
Yellow
DATA (B-)
Green
DATA (A+)
(Depends on the filter you select)
ULP STD
User manual
6.1.3 Modbus Registers
DIR_BASE_LA1 30001
SYSTEM_STATUS DIR_BASE_LA1 + 200
WIND_SPEED DIR_BASE_LA1 + 201
WIND_DIRECTION DIR_BASE_LA1 + 202
TWO_MIN_AVG_WS DIR_BASE_LA1 + 203
TWO_MIN_AVG_WD DIR_BASE_LA1 + 204
TEN_MIN_AVG_WS DIR_BASE_LA1 + 205
TEN_MIN_AVG_WD DIR_BASE_LA1 + 206
WIND_GUST_SPEED DIR_BASE_LA1 + 207
WIND_GUST_DIR DIR_BASE_LA1 + 208
FIVE_MIN_AVG_WS DIR_BASE_LA1 + 210
FIVE_MIN_AVG_WD DIR_BASE_LA1 + 211
FIVE_WIND_GUST_SPEED DIR_BASE_LA1 + 212
FIVE_WIND_GUST_DIR DIR_BASE_LA1 + 213
6.2 RS485 Wiring, Configuration and Re-
gisters
6.2.1. RS485 Wiring
RS485 (NMEA 0183) Output:
White
GND (Power -)
Brown
VCC (Power +)
Yellow
DATA (B-)
Green
DATA (A+)
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