RS232/DB9 Tricks and Tips Please

[BigDollaBill1234]

I have so many different machines here at my plant that have different RS232/DB9 cables ( straight thru, null, crossover, special cable ) that I have to make/remake and or buy. I was curious if maybe there is something out there that I can buy that will automatically ( or flip a switch)

Mostly its allen Bradley, servo drives and hmi... but I also have seimens too and omoron , emerson, proface, Yamaha, yaskawa, fanuc, Mitsubishi, ormec.....

Just seeing if someone knows something easier....thank you.

 

[bernie_carlton]

I don't know of any but if you invent one you'll make a million. Be sure to make it automatically change gender also.

 

[jawolthuis]

I have a little breakout board that is mounted in a little plastic case. It has a DB25 male on one side, and a DB25 female on the other. Then there are 2 rows of female headers that are all numbered, and a little slot in the side of the case to store jumper wires. You can then just use standard jumper wires to wire any input pin to any output pin. A guy could easily build one for DB9 cables.

 

[mk42]

This is one of the reasons I'm a big fan of Ethernet enabled devices.

Any time I'm working with a new serial device for the first time, I lose at least half a day trying to connect to it. Usually a full day, if I do something so stupid as use a cable someone gives me that they swear they've already tested and it works fine.

 

[rdrast]

I keep one straight through serial cable, and a bag full of gender changers and a null modem.

Works for everything except absolute custom cables.

 

[Dravik]

In addt. to Rdrast's list, I keep an in line LED tester for db9 and db25.

 

[KalleOlsen]

This is one of the reasons I'm a big fan of Ethernet enabled devices.

Any time I'm working with a new serial device for the first time, I lose at least half a day trying to connect to it. Usually a full day, if I do something so stupid as use a cable someone gives me that they swear they've already tested and it works fine.

The truth, the whole truth and noting but...
...character frame....stop bits....parity....speed....dtr...dsr...cts...xoff...dle...etx...bcc...
...NAK

30 years with serial connections is why I have so little hair left, and such a long nose.

Kalle

 

[rootboy]

I used to have a set of RJ45 to DB9 & DB25 connectors with each connector having its pins swapped about to configure it for that particular connection.

Now I have an Beckman "Easy BOB" Breakout Box.

 

[BigDollaBill1234]

Which model of easy bob do you have?

 

[rootboy]

Which model of easy bob do you have?

It's a Model 775. It had been sitting on the shelf at Randolph Williams for as long as anyone could remember. So I offered Mike $20 for it, and now it's mine. Heck of a deal.

Sorry about the delay, I kept forgetting to go into the garage and look it up.

Oldtimers...

 

[Doug-P]

Perhaps you can find something at http://smart-cable.com/