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1 – Graphic display OLED is designed for indicating the state of the unit, connections, communication interface
loading and showing the alarm messages.
2 – Indicator «K1» is lit on when relay K1 is activated.
3 – Indicator «K2» is lit on when relay K2 is activated.
4 – Indicator «K3» is lit on when relay K3 is activated.
5 – Indicator «Memory SD» is lit on when there is a memory card in a special slot, is blinking while transmitting
the data to the SD-card.
6 – Indicator «Server» is lit on when there is a connection with a server for data accumulating, is blinking while
data exchange with a server.
7 – Indicator «RS-485» is lit on when waiting a respond from a device in Modbus network; is blinking while data
exchange via Modbus net work.
8 – Indicator «GSM» is blinking every 3 sec. when there is a connection via GSM network, is blinking 3 times
per second while data exchange via GPRS.
9 – Indicator «Ethernet» is lit on when there is a connection via Ethernet network; it is blinking while data
exchange via network.
10 – Reset button «R» (is located under the casing and is available for pressing with a help of thin object such
as a paper clip) is designed to restart the unit or make factory reset.
11 – Alarm indicator «Alarm» warns about an error registration by the analysis of received data.
1.4 COMPLETE SUPPLY SET OF EM-486
EM-486 is supplied with:
- EM-486 .................................................................................................................................... 1 pc.
- GSM antenna ( SMA M connector, 50 Оhm)* ........................................................................... 1 pc.
- Cable for Ethernet connection ............................................ ............................................ 1 pc.
- Operating manual ................................................................................................................... 1 pc.
- Shipping box .......................................................................................................................... 1 pc.
* other types of antennas are delivered in coordination with the buyer
1.5 DESIGN AND OPERATION
EM-486 is designed as automatic micro processing digital unit.
32-bit digital RISC-processor with ARM system architecture makes a scanning of devices in RS-485
network via Modbus protocol according to the set program. The accumulated data and readings from
connected digital or analogue sensors are being saved to SD memory card. The processor supports
connection to the accumulating data cloud server via Ethernet network with a help of micro chip of physical
interface of Ethernet (or via GSM with a help of inbuilt GSM-modem, if connection via Ethernet is not
available). The accumulated data is regularly sent to the server.
The processor check out the set values in the accumulated data and in case of offsetting it registers this
event as an alarm. EM-486 sends the information about the events to the server, and it can be programmed for
switching on the inbuilt relays, for recording the set values in the RS-485 devices in network, for sending SMS to
the set telephone numbers.
The device can be connected via network by FTP protocol for reading the accumulated data from the SD
memory card.
EM-486
~ 6 ~
Figure 2 – Front panel of EM-486
NOVATEK-ELECTRO
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