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NA-4020/4021

RS-232/485 (Modbus/RTU) network adaptors

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Features

Introduction



Easy Maintenance

The NA-4020/4021 series network adapter can be expanded by adding up to 32 I/O modules. It can provide spring type, removable terminal blocks (RTBs) that allow you to preserve field wiring before replacing an I/O expansion module. Each I/O expansion module can be replaced quickly and easily. 

Dimensions (unit = mm)

• Serial Communication Parameters
Parity None, Even, Odd
Data Bits 7, 8
Stop Bits 1, 2
Baudrate 1200 to 115200 bps
Signals • NA-4020: Data+, Data-, Gnd, DIR
• NA-4021: TxD, RxD, Gnd
• Software Features
Protocols Modbus/RTU, Modbus/ASCII
Modbus Address 00 to 99 (set by rotary switches)
Programming Library MXIO DLL library for Windows; Supports Visual Basic, Visual C++, Borland C++ Builder, .net, VB/VC.NET
Number of I/O Modules Supported Max. of 32
• Power Requirements
Power Input 11 to 28.8 VDC, 24 VDC typical
Power Consumption 70 mA typical @ 24 VDC
Current for I/O Modules Max. 1.5 A @ 5 VDC

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Available Models

  Model No. Description
NA-4020 RS-485 network adaptor (Modbus/RTU)
NA-4021 RS-232 network adaptor (Modbus/RTU)

Compatible Modules

M-1600
  Model No. Description
M-1600 16 digital inputs, sink, 24 VDC
M-7001
  Model No. Description
M-7001 System power module
M-4410
  Model No. Description
M-4410 4 analog outputs, 0 to 10 V, 12 bits
M-4402
  Model No. Description
M-4402 4 analog outputs, 4 to 20 mA, 12 bits
M-1800
  Model No. Description
M-1800 8 digital inputs, sink, 24 VDC
M-1601
  Model No. Description
M-1601 16 digital inputs, source, 24 VDC
M-1801
  Model No. Description
M-1801 8 digital inputs, source, 24 VDC
M-1451
  Model No. Description
M-1451 4 digital inputs, 220 VAC
M-1450
  Model No. Description
M-1450 4 digital inputs, 110 VAC
M-2801
  Model No. Description
M-2801 8 digital outputs, source, 24 VDC, 0.5A
M-3810
  Model No. Description
M-3810 8 analog inputs, 0 to 10 V, 12 bits
M-3802
  Model No. Description
M-3802 8 analog inputs, 4 to 20 mA, 12 bits
M-6200
  Model No. Description
M-6200 2 analog inputs, RTD: PT100, JPT100
M-6201
  Model No. Description
M-6201 2 analog inputs, thermocouple
M-7805
  Model No. Description
M-7805 Potential distributor module, 8-ch, 24 VDC
M-7002
  Model No. Description
M-7002 Field power module
M-2600
  Model No. Description
M-2600 16 digital outputs, sink, 24 VDC, 0.3A
M-2601
  Model No. Description
M-2601 16 digital outputs, source, 24 VDC, 0.3A
M-2800
  Model No. Description
M-2800 8 digital outputs, sink, 24 VDC, 0.5A
M-7804
  Model No. Description
M-7804 Potential distributor module, 8-ch, 0 VDC
M-2450
  Model No. Description
M-2450 4 relay outputs, 24-VDC/230-VAC, 2 A

     
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