# Connecting notebook to PLC

A

#### Anonymous

I have a notebook which do not have com port (db9) but ps/2. How can I connect to PLC?

B

All notebook/laptop computers have a PCMCIA port and most notebooks since 1999 have at least one USB port.

There are numerous USB to serial adapters on the market, some seem to work, others don't. I have a no-name USB-to-serial adapter that works fine, but I have spent several hours trying a couple others that didn't work.

PCMCIA to serial adapters made by Socket, (http://www.socketcom.com) seem to work almost all the time. These cost more than USB-serial adapters, but others I have talked to seem to agree that the PCMCIA-serial adpaters are more rugged.

Bud

R

#### Robert Scott

Get a USB-to-COM port adapter. Now your PC has a COM port.

Robert Scott
Real-Time Specialties
Embedded Systems Consulting

J

#### Jeff Smeker

I use a USB to serial port converter (Belkin). Somewhat inexpensive and works well. Not sure about PS/2, I doubt that would work, but you probably have USB.

Z

G

#### Gimin

You can use USB port with converter USB to Serial

A

#### Aquilino

Hi:

You can get an USB/RS232 converter.
There are two types:

- without external power supply (not recommended)
- with external supply (a bit more expensive)

Hope useful.

Aquilino Rodriguez

B

Does it have a USB port ? Use a serial - USB converter

B

#### Brian Harbison

Go to http://www.cablestogo.com/

Product # 26886

after installing, check in device manager which Com port it has been assigned then set that in your programming software. If it sets a number above Com 5 reassign it, most programming software packages only use 1-4.

This is a big issue with most new laptops since they no longer come with COM ports

A

#### Alan Hartwell

I doubt you can make a mouse port work. If you have a USB port, try a USB-to-serial converter.

http://www.byterunner.com/ is just one of many suppliers. Try their CBL-USB-CS1B.

S

#### Steve

You will have to get a USB to serialconverter. Check with the PLC vendor which one they recomend, as not all types will always work. (there may be some timing issues)

Ragards
Steve

C

#### Cesar

There are several adapters for this needs USB to serial Cables or especial (and expensive) Ethernet to serial (or modbus, Rtu Ascii and other adapters ) From Exemys or other vendors. hope it helps

Q

#### Quantumcity

If your notebook has an USB port, get a USB -> Serial port converter will do.

P

#### PLC programmer

U need a PS2 <-----> Com Converter easily availble in the markets!!!!!!! round about 5 $to 10$

A

#### ANA

If your notebook doesn't have serial port, I'm assuming it has at least a USB port. Most PLC's now have cables that can connect via USP port.

ANA

B

#### BG

Get a USB to Serial converter and use it. They are inexpensive

K

#### Ken E.

You need a USB-serial converter, a serial PCMCIA card, or somethign like that. PS/2 is pretty dedicated to mouse and keyboard.

~Ken

A

Leon

A

#### Anonymous

Buy a USB/RS232 cable. Good luck!!! They sometimes work and sometimes do not. I have found the Omron one works very well but it is not cheap.