• Address

    C-188, Sector 31-D, P&T Society,

    Korangi Industrial Area,

    Karachi-74900,

    Pakistan

     

  • Call us on

     +92-21-35070751

     +92-300-5776703

  • Mail us @

    info@pakplc.com

     

PCL-746+

4-port RS-232/422/485 Communication Card


Main Features

  • Two independent RS-422/485 serial ports
  • Provides 3000 VDC isolation
  • Provides 2500 VDC surge protection
  • 16C550 UARTs with on-chip 16-byte FIFO
  • Transmission speeds up to 921.6 kbps
  • I/O address and interrupt selectable
  • Wide IRQ selection: 3, 4, 5, 6, 7, 9, 10, 11, 12 or 15
  • Supports 2 wire or 4 wire operation
  • Supports Tx, Rx, RTS, and CTS signals
  • Automatic RS-485 data flow control or RTS control
  • Termination resistors jumper enable/disable
  • Supports standard DOS COM1, COM2, COM3, and COM4
  • Supports Windows® 98/2000/XP, Linux®
  • Powerful and easy-to-use utility (ICOM Tools)
 
Introduction

The PCL-745 series card provides two RS-422/485 serial ports.Each port utilizes a 16C550 UART with an on-chip 16-byte FIFO buffer for reliable, high-speed serial I/O. The UART buffer divides data into 16-byte packets before sending them onto the bus. This drastically reduces the CPU load and avoids data loss due to failure to respond to the interrupt request in time. The UART is especially useful for high speed serial I/O under Windows. The PCL-745S card differs from the PCL-743S card in that the former uses on-board optical isolators to protect your PC and equipment against damages from ground loops, increasing system reliability in harsh environments. To further increase reliability, the PCL-745S offers surge protection technology, protecting your system from abrupt high voltage surges (up to 2500 V) such as those caused by lightning. 
Specifications
Part Number PCL-745S-BE PCL-746+-BE
Communication<br>Interfaces CAN - -
Current Loop - -
RS-232 V V
RS-422 V V
RS-485 V V
Display Ports 4 4
Network Cable Connector Type DB9 Male DB25 Male
Protection Isolation - -
Surge - -

 

 

  • Allen Bradley

Programmable Controllers

Allen Bradley control solutions set the standard — from the original programmable logic controller (PLC) invented in the 1970s to the technology embodied in the scalable, multi-disciplined and information-enabled programmable automation controller (PAC). Allen Bradley safety-certified controllers support your SIL 2 and SIL 3 application needs. Allen Bradley offer multiple controller types and sizes to fit your specific needs.

largecontrollerfamily front1 smprod
Large Control Systems

Allen Bradley Large Control Systems fit your most demanding application needs. They offer modular architectures and a range of I/O and network options. These powerful control solutions deliver world-class capabilities for all disciplines, from process to safety to motion. Designed for distributed or supervisory control applications, Allen Bradley large programmable automation controllers (PACs) and programmable logic controllers (PLC) provide exceptional reliability and performance.

smallcontrollerfamily front1 smprod

Small Control Systems 

The perfect solution for your mid-range applications, Allen Bradley small controllers offer the features and flexibility you need without the overhead of larger systems. Choose from standard and safety-certified controllers in chassis-based, packaged and modular designs. Typical applications include complex machine control, batch processing and building automation.

micronanocontrollerfamily front1 smprod

Micro & Nano Control Systems

Allen Bradley micro nano PLCs provide economical solutions to basic control needs for your simple machines ranging from relay replacement to simple control timing and logic. Compact packaging, integrated I/O and communication, and ease of use make these controllers an ideal choice for applications such as conveyor automation, security systems, and building and parking lot lighting.