Device Description; The Intended Use; Preparation For Operation; Preparation For Connection - Novatek-electro RS-485 Operating Manual

4. DEVICE DESCRIPTION

The device provides control for MODBUS devices in RS-485 network via Ethernet interfaces or GPRS, or via
SMS. The device also allows reading data of devices by MODBUS. The processor supports connection to cloud-
based data collection server via Ethernet network with a help of microchip of physical interface of Ethernet (or via
GPRS /HSPA with a help of in-built modem, if connection via Ethernet is not available).
In addition, the device can be connected via MODBUS TCP Protocol to exchange data with MODBUS devices, or
with EM-481. The controller receives and processes SMS with a password and command read/write for Modbus devices.
When inserting a memory card the device reads the internal memory for operational logic - program for data
collection and tracking of events. The program runs in the background mode.
The device stores the network settings, safety parameters, the logic of action, the collected data log in the built-in
memory.

5. THE INTENDED USE

5.1. Preparation for operation

5.1.1. Preparation for connection:

 Unpack the device (we recommend to keep the original packing for the entire warranty period of the device
operation);
 Check the device for damage after transportation; in case of such damages detection, contact the supplier or
the manufacturer;
 Carefully study the Operating Manual (pay special attention to the connection diagram to power the device);
 If you have any questions regarding the installation of the device, please contact the manufacturer by
telephone number indicated at the end of this Operating Manual.

5.1.2. General

If the temperature of the device after transportation or storage differs from the ambient temperature at which it is
supposed to be operated, then before connecting to the mains keep the device under the operating conditions
within two hours (because of condensation may be on the device elements).
ATTENTION! ALL CONNECTIONS MUST BE PERFORMED WHEN THE DEVICE IS DE-ENERGIZED.
Error when performing the installation works may damage the device and connected devices.
To ensure the reliability of electrical connections you should use flexible (stranded) wires, the ends of which it is
necessary to be striped of insulation for 5±0.5 mm and tightened with bootlaces. It is recommended to use the wire
with cross-section of at least 1 mm
NOVATEK-ELECTRO
7
-
2
.
-
F1 – fuse (fuse element) for current of 2.5 A;
Contact "A" is designed for transmission of non-
inverted signal;
Contact "B" is designed for transmission of inverted
signal.
Figure 5.1 – Connection Diagram of the device
EM-481