overview

　LAN/USB to 4-20mA converter LNX-202 is a converter that can control 4-20mA signals from a computer via LAN or USB.
The LAN/USB side and the 4-20mA output circuit are insulated. It also has a built-in loop power supply for testing. When using a computer for instrumentation control, it can be used as a 4-20mA test signal generator.
In addition, since dedicated control commands are available, you can also control 4-20mA from your own application. Since it comes standard with PoE functionality, it can be operated by supplying power from a LAN cable. (PoE-compatible HUB, etc. is required) It can also be operated with the included AC adapter.

*The second and subsequent images are CG.

* Installation reference diagram (mounting fixture sold separately)

Features

• Control from a virtual COM port via LAN or USB
• Control by simple commands
• Insulated
• High accuracy
• Built-in loop power supply for testing (switchable)
• Easy device setup with setting memory card (microSD)
  • When replacing equipment, you can easily migrate by replacing the setting memory card.
  • Setting data can be sent to remote locations via email attachments, etc.
  • There are no restrictions on the IP address that can be set (can be set outside the segment)
  • Easily back up and record settings by saving the settings file
• Device settings can also be configured via network (LAN) using the original setting tool.
• PoE compatible, so power can be supplied via LAN cable
• Power can be supplied via PoE, AC adapter, or USB bus power
• Noise-resistant design
• Virtual COM port support
• Free of 10 substances restricted by the RoHS Directive

Functionality Overview

• Connect to a PC via LAN and easily control via a virtual COM port or network.
• Connect to PC via USB and easily control via virtual COM port
• Output current can be set
• Output can be turned on/off

Application Overview

　The application included with the LNX-202 allows you to use your PC as a high-performance 4-20mA signal generator (calibrator). It also allows you to display and input scaling (unit conversion). (Supported OS: Windows 10/8.1/8/7/Vista/XP)

  LAN/USB to 4-20mA Generator download page

Dedicated commands are available, so you can output current from Tera Term or your own application.

specification

item	Contents	remarks
Model number	LNX-202
Power supply voltage	DC5V Supplied from the LAN connector using the included AC adapter or PoE function When using USB, it can be supplied from the USB bus power	PoE supports both pattern A and pattern B
Current consumption	・When using LAN: 800mA or less ・When using USB: 500mA or less
Host I/F	LAN (RJ45 connector) 　IEEE802.3 (10Base-T), IEEE802.3u (100Base-TX) 　half-duplex/full-duplex (auto-detect) USB (USB B connector)   USB2.0 compliant (Full Speed ​​compatible)	Can also be used with USB 1.1
Output Connector	3-pole terminal block	Phoenix Contact Model 1759020
Output Range	0 to 24mA
resolution	16-bit D/A Converter (DAC)
accuracy	0.05% FS or less (@25℃)	When the output range is 4-20mA
External Loop Power	DC20-52V	The capacity of the input load resistor changes depending on the supplied voltage.
Input load resistance	When using the built-in loop power supply: 1200Ω When using the external loop power supply: 500Ω (@DC24V)
Insulation method	Independent Bus Isolation
Dielectric strength	DC2500V	Design value
Installed LSI	General-purpose microcomputer 0-24mA dedicated DAC
display	8x2 line LCD display (with backlight) 4 status LEDs Power indicator LED
Memory card for settings	microSD card	For setting up this product
Control Method	Communication control by TCP/UDP/Telnet/virtual COM port
Operating Temperature Range	-20 to 50°C	No condensation, etc.
Operating Humidity Range	30～85% RH	No condensation, etc.
Storage Temperature Range	-20 to 50°C	No condensation, etc.
Storage Humidity Range	30～85% RH	No condensation, etc.
mass	About 270 [g]
External dimensions	165 x 80.5 x 39 [mm]	Protrusions not included

*Parts may be changed to compatible ones.
*Power saving functions such as suspend, standby, and hibernation are not supported.
*We recommend using the microSD card included with the product. SDHC/SDXC cards are not supported.

Pin assignment

LNX series setting tool

　This application creates setting data for the LNX series.

　The created setting data is inserted into a setting memory card (microSD) and the power is turned on to set the product.
At this time, a backup file of the setting data is created on the setting memory card.
It will work even if the setting memory card is not inserted after the power is turned on.
When replacing the LNX series main unit, you can easily set it to the same settings by using the setting memory card.
If the PC and product are connected in the same segment, it can also be set via the network (LAN).
(Note) The content of the setting data varies depending on the model.

Product Configuration

• Main unit
• microSD card (with USB adapter)
• AC adapter (DC5V)
• USB cable 1.8m long
• Driver & Application CD　Supported OS List (CDC)
• Product Manual

support

	Manuals, outline drawings, etc.
	We will send you the latest revision 3D data.
	We will lend you a demo machine for evaluation. If you are interested, please download the loan request form here.