Converter is used for attaching few measurement devices to a standard PC computer. It is a low cost solution where a standard PC computer can be used to create a local climate monitoring station (i.e. in a laboratory) or an internet meteorological station.
When using an additional module 7188E1 there is a possibility of connecting the converter LB-486 through Ethernet network to a supervisory computer working in a network.
In a basic version of the converter LB-486 it is possible to connect simultaneously to one of the RS-232 ports (COM) in a PC computer:
It is possible to connect simultaneously up to 30 converters LB-486
with one another using the interface RS-485 (one twisted pair).
It allows on creating big, scattered measurement systems of data
collection. A device, which reads data from such a system has to be
equipped with the port RS-485. In case of using a PC computer a
converter LB-485 can be used to change the standard of the computer
interface from RS-232 to RS-485.
The converter LB-486 fulfills the following functions:
The converter has the following interfaces:
The converter is equipped with a memory and a real time clock, what allows on buffering in the converter (in the actual version) a set of measurement results from all of the devices (records) and collecting them at a time convenient to a user. The number of the results that can possibly be stored in the device's memory, depends on a number and type of the attached devices and i.e. for 4 hytherographs LB-710 (or hytherographs LB-701 with a panel LB-705), without a rain gauge, amounts to 472 records.
The converter does not have a built-in display and the measurement results are available only through the port RS-232 (or RS-485). The actual work status of the converter (i.e. attaching the devices to CPP inputs) is signaled using the LED diodes.
Standard equipment of LB-486 includes software for a PC computer working in the systems: DOS and Widows 95/98/NT that allow on reading current and registered measurement results as well as setting a clock and a converter registry interval (in the scope 1...65000 seconds). The persons that would like to individually prepare a program communicating with the converter LB-486, can use the attached communication protocol.
A program "Meteorology station panel" working with the system
Windows 95/98, serves as an additional equipment of the converter
LB-486. The program allows on graphic visualization of the current
measurement results on a computer screen and its registry to HDD. The
program is prepared for a certain set of the measurement devices
attached to the converter according to the detailed user specifications
|Number of inputs type S300 for LAB-EL sensors:
|Rain gauge input:
|Measurement result memory:
||472 records (from 4 hytherographs -710)|
||1 second ... 18 hours (second with each step)
||230 V / 6 VA / 50 Hz|
|Overall dimensions (width, depth, height):
||180 x 160 x 90 mm|