datlink technologies products datalink technologies whats new datalink technologies downloads datalink technologies faq datalink site map datalink technologies links links about datalink technologies contact datalink technologies
 
dl3500 dh+ ascii (Data Highway Plus)

DL3500 ASCII DH+
ASCII Serial Interface

The newest DataLink DL3500-DH+/ASCII (ASCII DH+) is an amalgamation of two existing products: the DL3000-ASM and the DL3000-ASC. The improved compact freestanding ASCII serial interface gives customers the ability to send as well as receive ASCII messages via A-B Data Highway Plus (DH+).

ASCII DH+ dl3500 The DL3000-ASM facilitates ASCII data transfer to any PLC including models without an ASCII port, such as A-B’s ControlLogix.

A block of data is temporarily stored in the ASM’s 240-byte buffer until the buffer is filled or an ASCII carriage return is detected in the data. Once the data is terminated, the bytes are transmitted to the PLC's integer files in DH+ protocol format.  All bytes are retransmitted in the order they were received minus the carriage return.

dl3500 dh+ ascii

The DL3000-ASM now has the added functionality of the DL3000-ASC, enabling ASCII messages stored in PLC-5 data tables to be transferred over DH+ (Data Highway Plus) to a serial printer or message display.

The -ASM is specifically designed to buffer DH+ (Data Highway Plus) message commands sent to its station address from any PLC-5. The transmitted ASCII bytes are then flipped to produce messages on the printer in the same order as the ASCII data is entered and displayed in the PLC.

Features:

Flexible System Layout: scanners, printers, and message displays located anywhere on a DH+ network can send and receive ASCII messages to and from PLCs in other locations

Compact and Lightweight: Small footprint for installation convenience

Easy Configuration: All parameters are menu-driven

High Speed: Serial speeds from 300 baud to 19.2 Kbaud and also 57.6 Kbaud

Specifications:
Interfaces 
Channel A: Synchronous; SDLC Transformer-coupled
Channel B: Asynchronous; RS232C/RS422/RS485

Physical Dimensions 
Size: 7.5" D x 5.5" W x 1.5" H
(190mm x 140mmx 38mm)
Weight: 2.2lbs (1kg.)

Power
AC: 110/220 VAC (+/- 25%); 50/60 Hz; 5 Watts
DC: 10 - 35 VDC; 5 Watts

Installation
Freestanding; Metal enclosure

Environment
Operating: +32°F to 122°F (0°C to +50°C)
Storage: -40°F to +185°F (-40°C to +85°C)
Humidity: 5% to 95% non-condensing

Protocols
Channel A: Allen-Bradley Data Highway Plus
Channel B: Allen-Bradley DF1 (ANSI X 3.28); Custom

Configuration
PC program software menu for communications parameters		 Selection
Jumpers select supply voltage and  
serial interface type

Indicators
1 LED for power-on; 5 LEDs for communications activity

Switches
Reset and Configure/Diagnostics mode pushbuttons

Error Detection
Channel A: CRC
Channel B: BCC or CRC

Communications
Channel A: Synchronous, DH+ at
57.6 Kbaud
Channel B: Asynchronous; 300 baud to
19.2 Kbaud;
High-speed 57.6 Kbaud selection

Hardware
Z180 Processor; 32 Kbyte Flash-PROM;
8 Kbyte RAM; 32 byte EEPROM;
1 DH+ and 2 serial interface connectors