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#Communicate with rockwell plc from pc how to
#Communicate with rockwell plc from pc serial
#Communicate with rockwell plc from pc driver

#Communicate with rockwell plc from pc serial

This might be a serial cable or USB or Ethernet. Step 1: choose and connect to cable between your computer and the PLC. So remember from part one, the four steps we need to follow to get connected to a PLC are as follows. But you still may need to connect to an older PLC using a serial connection. Thankfully we don't need serial cable connections as much anymore since we have Ethernet and USB on most new controllers.

#Communicate with rockwell plc from pc how to

So in this video we're going to look at how to connect your computer to a PLC, the old school way, which is using an RS-232 serial cable. It's Stephen Gates here with my PLC and you've got another video today to help you become a confident PLC programmer. Connecting to Allen-Bradley PLCs with DF1 Ok, so now check out this video video on how to set up communications using a RS-232 serial connection using the protocol called DF1.

#Communicate with rockwell plc from pc driver

Configure a driver in RSLinx to talk to that specific PLC over the specific protocol you're going to use, whether it's Ethernet, DF1, or USB.

So there may be some things you have to do with the PLC before you can connect to it.

You need to set up your PLC for comms and some PLCs are not set up to communicate with your computer out of the box.

So if you're connecting over Ethernet that means setting the IP address on your computer, or if you're talking over serial or USB, you may need to configure the comm port that you're connected through.

You need to set up your computer so that it's ready to connect to the PLC.

That could be a serial cable or a USB cable with some of the more modern controllers, or it could be ethernet or even something else.

You need to choose and connect some sort of cable between your computer and the PLC.

So, if you remember from part 1 of this series (back in December 2019), there are 4 basic steps to connecting to any Allen-Bradley PLC: Plus, having a good understanding of how to set up communications from your PC to your PLC with the serial protocols will help when you need to use other communication options such as Ethernet and USB.

But there are still a lot of older PLCs out there that have a serial port so this training will probably come in handy for you at some point ) Most newer PLCs have a USB port and an EtherNet/IP port. Now, to be honest, A-B doesn’t even make PLCs with serial ports anymore. The typical RS-232 cable uses a 9-pin connector as shown below: The DF1 protocol is usually used when you connect a RS-232 cable from your computer to a PLC. Particularly, the DF1 serial protocol from A-B. This article is all about connecting your computer to Allen-Bradley PLCs with serial communications.