DL28

Communications processor

Features

  • Data communication connections between measuring and control devices in a heating substation
  • Integration of substations into remote monitoring and control systems
  • Data logging
  • 32-Bit CPU @ 454MHz
  • Linux operating system
  • 256MB DDR2 SDRAM
  • microSD card, push-push connector
  • Ethernet interface
  • USB Host, Device, On-The-Go ports
  • RS-232 and RS-485 DCE serial interfaces
  • M-Bus Master and Slave ports
  • Galvanically isolated ports
  • DC power supply (18-36V)
  • 35mm DIN mounting rail

Description

DL28 is a communications processor that handles data communication connections between measuring and control devices in a heating substation and their integration into remote monitoring and control systems (SCADA) by using diverse transfer routes. DL28 can be connected to SCADA programs in several ways: via local area networks (LAN), wireless computer networks (WLAN), CATV modems, GSM/GPRS/3G routers, as well as via other standard and wireless modems. An established communication link allows for real-time remote monitoring and read-outs of process variables at the heating substation, as well as of alarm conditions.

The DL28 has a plastic enclosure for mounting with a 35mm DIN mounting rail. The front panel features power supply connectors, connectors for USB peripherals, memory cards, Ethernet and serial communication, as well as LED indicators. The communications processor supports microSD memory cards via a push-push connector.

Wiring Diagram

PinSignal nameSignal Description
1+Positive terminal
2GNDGround terminal
3-Negative terminal

TECHNICAL SPECIFICATION

PROCESSOR BOARD
Central processor32-Bit MCU Core ARM926EJ, 454MHz
Operating systemLinux 2.6.35
Memory256MB DDR2 SDRAM
Disc4GB Flash
Ethernet1 x USB2.0 Hi-Speed Host, 1 x OTG
Memory cardmicroSD, push-push connector
Real Time Clock (RTC)Implemented (powered by a CR1220 battery)
COMMUNICATION BOARD
USB1 x USB2.0 device, galvanically isolated, FT232R
Serial portsGalvanically isolated with send and receive LED indicatorsn
S1 – RS-232C (TD, RD, DTR, RTS, CTS, RI, DCD signals)
S2 – RS-232C (TD, RD, RTS, CTS signals) or RS-485 (A+ & B-)
S3 – RS-232C (TD, RD, RTS, CTS signals) or RS-485 (A+ & B-)
M-Bus BOARD
Serial ports
Galvanically isolated with send and receive LED indicators
S4 – M-Bus Master, up to 3 Slave devices
S5 – M-Bus Slave
S6 – RS-232C (TD, RD, RTS, CTS signals) or RS-485 (A+& B-)
COMMON CHARACTERISTICS
Power supply8~30V DC
Power consumption 5W
Enclosure protectionIP40
Temperature rangefrom -20°C to +55°C and from 0 to 95% RH (without condensation)
Dimensions70 x 85 (91) x 73mm
MountingDIN rail 35 mm

ORDERING INFORMATION

ModelSKUDescriptionPrice 
DL2810216

Communications processor

€550

*Minimum functionality kit needs to include the device and an appropriate power supply. Please note that all accessories are sold separately.

ACCESSORIES

ModelSKUDescription Price 
PS-2415-DIN

23601

Power supply, DIN rail mount, DC24V 15W, AC85-264V 50/60Hz
€11

11.00

11.00
Add To Cart
SKU# 23601
CB-DL28-K1

23128

Serial Cable Assembly 0.3m, RJ45 Male - DB9 Male, for connecting S1 to GSM Terminal GT900
€4

4.00

4.00
Add To Cart
SKU# 23128
CB-USBAB-2M21745USB Cable Type A/B 1.8~2m, for connecting to PC for debugging€4

4.00

4.00
Add To Cart
SKU# 21745
CB-ETH-0.5M 22133Ethernet patch cable, RJ45 Male – RJ45 Male€1

1.00

1.00
Add To Cart
SKU# 22133

Product Documents