Novatek Electro India Private Limited
Novatek Electro India Private Limited
Patparganj Industrial Area, Delhi
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Smart Input Output Modules

Smart I/O modules are an extension of smart relays allows data exchanging with external devices via the serial interface of RS (EIA/TIA)-485 via ModBus protocol with the limited set of commands. When constructing a network, the principle of the master-slave organization is used where smart I/O modules acts as the slave. There can be only one master node and several slave nodes in the network. As the master node is a smart relay or personal computer or programmable logic controller. With this organization, the initiator of the exchange cycles can only be the master node. The queries of the master node are individual (addressed to a particular device). Smart I/O modules performs transmission, responding to individual queries of the master node. If errors are found in receiving queries, or if the received command cannot be executed, smart I/O modules as the respond generates an error message.

Smart Digital Input Output Module OB-215

Smart Digital Input Output Module OB-215
  • Smart Digital Input Output Module OB-215
  • Smart Digital Input Output Module OB-215
  • Smart Digital Input Output Module OB-215
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Product Details:

No. Of ChannelsOne Configurable Input, One Relay Output & Built-in RS485 Communication
BrandNOVATEK ELECTRO
Power12 - 24V DC
ModelOB-215

OB-215 can be used as the following:

− remote DC voltage trasducer input (0 – 10 V);

− remote DC current transducer input (0 – 20 mA);

− remote temperature meter with the ability to connect sensors NTC (10 KV), PTC 1000, PT 1000 or digital temperature sensor D18B20;

− temperature regulator for cooling and heating plants;

− pulse counter with saving the result in memory;

− pulse relay with switching current up to 8 A;

− interface converter for RS-485 – UART (TTL).

OB-215 provides:

− equipment control using relay output with switching capacity up to 1.84 kVA (8A);

− tracking the state (closed/open) of the contact at the dry contact input.


RS-485 interface provides control of the connected devices and reading of the sensors readings via the ModBus protocol.

Parameter setting is set by the user from the Control Panel using the ModBus RTU/ASCII protocol or any other program that allows working with the ModBus RTU / ASCII protocol.

The status of the relay output, the presence of the power supply and the data exchange are displayed using indicators located on the front panel

ОВ-215 allows data exchanging with external devices via the serial interface of RS (EIA/TIA)-485 via ModBus protocol with the limited set of commands (see Table 5 for a list of supported functions).


When constructing a network, the principle of the master-slave organization is used where OB-215 acts as the slave. There can be only one master node and several slave nodes in the network. As the master node is a personal computer or a programmable logic controller. With this organization, the initiator of the exchange cycles can only be the master node.


The queries of the master node are individual (addressed to a particular device). OB-215 performs transmission, responding to individual queries of the master node.


If errors are found in receiving queries, or if the received command cannot be executed, OB-215 as the respond generates an error message.

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Additional Information:

  • Item Code: OB-215
  • Port of Dispatch: New Delhi
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Debashish Ghosh (Director)
C - 30, Patparganj Industrial Area F.I.E.
Delhi -110092,India



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