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Safety and operating instructions
Weather Stations P03/3-Modbus(-GPS)
• Version: 07.06.2022 • Errors excepted. Subject to technical changes.
1.
Safety and operating instructions
Installation, testing, operational start-up and troubleshooting should
only be performed by an authorised electrician.
CAUTION!
Live voltage!
There are unprotected live components inside the device.
• Inspect the device for damage before installation. Only put undamaged
devices into operation.
• Comply with the locally applicable directives, regulations and provisions for
electrical installation.
• Immediately take the device or system out of service and secure it against
unintentional switch-on if risk-free operation is no longer guaranteed.
Use the device exclusively for building automation and observe the operating instruc-
tions. Improper use, modifications to the device or failure to observe the operating in-
structions will invalidate any warranty or guarantee claims.
Operate the device only as a fixed-site installation, i.e. only in assembled condition and
after conclusion of all installation and operational start-up tasks, and only in the sur-
roundings designated for it.
Elsner Elektronik is not liable for any changes in norms and standards which may occur
after publication of these operating instructions.
For information on installation, maintenance, disposal, scope of
delivery and technical data, please refer to the installation
instructions.
2.
Description
The
P03/3-Modbus and P03/3-Modbus-GPS Weather Stations
measure temper-
ature, wind speed and brightness (eastern, southern and western sun) and recognize
precipitation.
The
P03/3-Modbus-GPS
additionally receives the UTC signals (Universal Time Coor-
dinated) as well as the site coordinates via an integrated GPS receiver. The direction of
the sun (azimuth) as well as its height (elevation) are calculated and indicated, too.
The devices are Modbus slaves with a RS485 interface and a RTU protocol. The Mod-
bus master, such as PC, SPS or MC can read the
P03/3-Modbus(-GPS) Weather Sta-
tions
measurement values with “Function 04h (Read Input Register)”.
Functions:
•
Brightness measurement
with three separate sensors for east, south and
west. Recognition of twilight/dawn
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