Gateway, Remote I/O

R3 Series - Multi-channel, Mixed Signal Remote I/O

R3 Series

Wide selection of I/O modules and network modules.

  • Great flexibilities in number and type of I/O signals: DC current/voltage, temperature, strain gauge, AC current/voltage, AC power, etc.
  • Economical DC input module can handle fully-isolated 4 points up to non-isolated 16 points.
  • Hot-swappable I/O modules
  • Dual redundant communication networks

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M3 screw terminal block is used for I/O modules. The removable terminal block is convenient for maintenance. Network Module and Power Supply Module in one housing. One I/O module plus one Network Module with power supply is the minimum unit: Space-saving and economical solution.
Dual network communication modules are optional for mission critical applications.
If you choose two different network protocols for the network modules, the remote I/Os can be directly monitored by two different manufacturers’ PLC systems.

R3 front 1
R3 front 2
R3 front 3
R3 front 4

The Power Supply Module is located at the right end, with Network Module inserted at its left. Network Module with incorporated power supply is available for small systems.
Multiple I/O modules can be mounted; No.1 at the extreme left end, No.2 and following modules to its right.

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R3 Series - 900 MHz Band Wireless Remote I/O (for use in the US)

Wireless Remote I/O R3-NMW1F

Licence-free 900 MHz ISM band
FCC Part 15 compliant wireless module*

Modbus Interface Module (model: R3-NMW1F)

  • Converting Modbus-RTU protocol into the 900 MHz band radio protocol and vice versa.
  • Wide selection of R3 Series I/O modules can be freely combined.
900 MHz ISM Band FCC Part 15 compliant
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* This device is approved for use only in the US.
* Signal strength site survey is required before introducing wireless modules.



With PC as Modbus/Master, communicates with slave devices via wireless module using Modbus/TCP and RTU protocol.
Also, Gateway function allows to communicate with slave devices connected in multi-drop configuration with wired network, using Modbus and RTU protocol.


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Wireless Tower Light (FCC Part 15 compliant wireless module)   » MORE

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