Moxa M-1451 Guida Specifiche

 www.moxa.com     email: info@moxa.com     

 www.moxa.com     email: info@moxa.com     

Remote Monitoring Solutions

NA-4020/4021

Baudrate: 1200 to 115200 bps
Data Bits: 7, 8
Parity Bits: None, Even, Odd
Stop Bits: 1, 2
Signals:

NA-4020: Data+, Data-, Gnd, DIR

NA-4021: TxD, RxD, Gnd

Protocols: Modbus/RTU, Modbus/ASCII
Modbus Address: 00 to 99 by rotary switches
Utility: ioAdmin
Programming Library: MXIO DLL library for Windows supporting 

Visual Basic, Visual C++, Borland C++ Builder
Number of I/O Modules: Max. of 32 I/O expansion modules

0    1

2    3

4    5

6    7

CH0

CH0

CH0 CH0

ioLogik 4000

Modbus RS-485
NA-4020

SYS

TxD

RxD

I/O

Field
Power

0    1

2    3

4    5

6    7

SG

Field Power (0 VDC)
Field Power (24 VDC)

SG

24V 0V

0V

0V

24V 24V

System Power (0 VDC)

System Power (24 VDC)

Field Power (0 VDC)

Field Power (24 VDC)

Shielding Ground

System Power (5 VDC)
System Power (GND)

System Bus

Non-isolation
Switching
Power

Step 1: Select a Network Adaptor Module

Step 2: Select I/O Modules

Step 3: Select Power Modules (optional)

NA-4020: RS-485 Network Adaptor (Modbus)

NA-4021: RS-232 Network Adaptor (Modbus)

*The NA-4020/4021 RS-485/RS-232 Adaptors are expandable with up to 32 I/O modules. Please refer to pages 5-31 to 5-34 to select the M-series modules that you need 

for your own application.  

Power Input: 11 to 28.8 VDC, 24 VDC typical
Power Consumption: 70 mA typical @ 24 VDC
Current for I/O Modules: Max. 1.5A @ 5 VDC

Rated Voltage: 11 to 28.8 VDC, 24 VDC typical
Current in Field Power Contact: Max. 10A

System Power to I/O Driver: Optical isolation

Operating Temperature: -20 to 60°C, 5 to 90%RH
Storage Temperature: -45 to 85°C
Vibration: IEC-68-2-6, 2G in operation

EMC: CE EN-55082, EN-55081
Safety: UL 508

Net Weight: 150 g

The certifi cation logos shown here apply to some or all of the products in this 

section. Please see the Specifi cations section or Moxa’s website for details.