DT4227 RS … Process indicator RS485 Modbus RTU input

Product features

  • RS485 interface
  • Modbus RTU slave protocol
  • large, 5-digit LED display, 57 mm character height
  • adjustable brightness
  • easy setting via front-panel pushbuttons or via USB interface
  • dual relay output
  • 24 VDC ± 10% or 230 V AC/DC ± 10% powered versions
  • 288 × 96 mm panel instrument, <80 mm installation depth
  • IP52 front IP20 back

Type designation

DT4227-RS Process indicator RS485 Modbus RTU input-type-designation

Product description

The DT4227 RS4.. Process Indicator is designed to display signed numerical values and limited-character messages transmitted via communication lines. The device features a 5-digit LED display with a character height of 57 mm, ensuring excellent readability even from a long distance.

DT4227 process indicator distance of visibility

In numerical display mode, any number within the range of -9999 to 99999 can be displayed; leading zeros can be blanked, and the entire display can be set to flash.
In message display mode, the device can display text (such as Start, Stop, End, Error, etc.) using the character set supported by the 7-segment display. In this mode, characters can be flashed either individually or simultaneously.
Several displays can be operated on the RS485 communication bus.
The communication protocol is Modbus RTU slave.
The device has dual relay outputs (SPST), which are freely programmable, and several limit modes can be selected.
The communication parameters can be set, the maximum communication speed is 9600 Baud.
The operating parameters can be set via a simple menu system using front-panel pushbuttons or via a USB interface with a single-screen (free) configuration program: display brightness, leading zero suppression, Modbus parameters, etc. The settings are protected by a two-level password against unauthorized access.
The device is available with two power supply options:

  • DT4227 RS4 type 24 VDC ± 10% or
  • DT4227 RS4 PS type 230 V AC/DC ± 10%.

Technical specifications

Safety data:
The input, output connection terminals and the power supply connection terminal of the device are separated from each other, the separation complies with the requirements of MSZ EN 61010-1, taking into account the following.
Pollution degree:2
Measurement category:II
Input characteristics:
Communication interface:
Interface type:RS485
Communication protocol:Modbus RTU slave
Communication speed:300 / 600 / 1200 / 2400 / 4800 / 9600 Baud
Parity:even / odd / none
Number of stop bits:1
Relay outputs:
Outputs:2 x SPST NO relay contacts
Contact rating:30 VDC, 3 ADC / 240 VAC, 3 AAC
Display:
Display range:5 digit (+ values), 4 digit (- values), sign,
decimal point
Display:7 segment LED, 57 mm character height
Color:red
Indicator LED’s:2 pc. relay status 1 pc. communication status
Color:yellow
Manual controls:
Manual controls:3 pcs. front panel push button
Configuration port:
Connector:USB-mini
Standard:USB 3.0 (recommended)
Power supply:
Supply voltage:24 VDC ± 10% (DT4227 RS)
230 V AC/DC ± 10% (DT4227 RS PS)
Consumption:3.5 W / 3 VA
Ambient conditions:
Operating temperature range:0-+60 °C (on request: -20-+60 °C)
Storage temperature range:-25-+70 °C
Relative humidity:90% (max., non-condensing)
Place of installation:cabinet
Electromagnetic compatibility (EMC)
accordance with the standard EN 61326-1:
Immunity:industrial area
Noise emission:Group 1, Class B
General data:
Housing:panel instrument
Connection:plug-in screw terminal
Connection cable:2.5 mm2 (max.)
Dimensions:288 × 96 × 78 mm (width × height × depth)
Weight:0.7 kg
Protection:IP52 front, IP20 back
Detailed information is in operating instructions. The Manufacturer maintains the right to change the technical data!

Downloads

Leaflet of productOperating Instruction

Type selection and ordering

Login to see prices