SLC5/03 USB/232 Problem

[DeltaKilo 0]

We recently bought a used injection molder and I am trying to connect to the PLC to save a copy of the program. My laptop didnt come with a serial port so my boss went down to Staples and got a USB to Serial adaptor. My computer has the adapter at COM5 but when I run the autoconfig for a RS-232 DF1 Driver, it doesnt pick it up. What should I do?

[Ken Roach 194]

Some inexpensive RS232/USB converters don't work with the Autoconfig function in RSLinx Classic because they cannot rapidly change serial framing. The Keyspan USA-19HS is the Forum favorite. The default serial configuration for an SLC-5/03 Channel 0 is DF1 Full Duplex, 19200 baud, no parity, 1 stop bit, CRC error checking, with a Device Type of "SLC/MicroLogix". Try those settings. The physical serial cable should be a "null modem" cable, like the 1747-CP3. If you have just a generic serial cable, add a 'null modem adapter'. It's possible this setup won't work because the SLC-5/03 Channel 0 serial port is set for some other protocol. The usual way to connect to these controllers when you don't know the Channel 0 protocol is to use Channel 1, and that requires an Allen-Bradley device called the 1747-UIC. It's a USB converter as well, but it specifically runs the Data Highway 485 protocol that is implemented on the Channel 1 network port of the SLC-5/01, 5/02, and 5/03 controllers.

[DeltaKilo 0]

Thank you for your help. I still couldnt get it to work. Is there any trick to how I should have my adaptor port configured? I set the BPS to 19200, but what about the Data Bits? Flow Control? I do not have a 1747-UIC.

[Ken Roach 194]

The default settings for an SLC-5/03 serial port are: DF1 Full Duplex 19200 bits/second 8 data bits 1 stop bit No parity CRC Error Checking No Handshaking. Your RS-232 Devices driver settings in RSLinx should be the same. Set the 'Node Number' to zero, and the Device Type to SLC-CH0/Micro/PanelView. Set the COM port to the port detected by Windows for your USB/RS232 converter. And as I mentioned, the cable between the PC and the SLC-5/03 should be a "null modem" type cable, like the 1747-CP3. It's possible that the SLC-5/03 serial port is not configured for the default settings. Was it connected to anything else, like a 1761-NET-AIC module or some sort of touchscreen interface, or some other device ?

[DeltaKilo 0]

It is connected via DH 485 to a PanelView.

[Ken Roach 194]

The SLC-5/03 controller has two communication ports. Channel 0 is the RS-232 serial port, with a DB9 connector. It can be configured for many different protocols, including DF1 or DH485 or ASCII. Channel 1 is the DH485 network port, with an RJ45 connector. It can only be configured for DH485 protocol. I do not understand from your post if "it" refers to the Channel 0 port or the Channel 1 port. Please describe in detail any devices connected to any of the SLC-5/03 ports. If the Channel 1 port is connected to a PanelView terminal over DH485, that means that Channel 0 might still be configured for DF1 and you should be able to connect to it with the general-purpose USB/RS232 converter. If the Channel 0 port is connected to a PanelView terminal using DH485 protocol over RS-232, that means that you cannot use a general-purpose USB/RS232 converter to connect to it. The only supported interface for that sort of connection is the Allen-Bradley 1747-UIC device, using the RS-232 physical port. Edited 9 Jul 2013 by Ken Roach

[DeltaKilo 0]

This

[Ken Roach 194]

What exactly do you mean by "This" ? Posting that word is used as emphatic endorsement of a previous post on some informal Internet communities, but I don't see its applicability here. If you want advice on connecting to the SLC-5/03 controller in your injection molder, go ahead and post additional information or questions.

[DeltaKilo 0]

If you look, I modified your quote to show what my setup is.

[Mickey 71]

Sorry DeltaKilo I don't see in that post (#7) how yours is setup. Do you have the offline file? If so post it here if you can, the .RSS file. Edited 9 Jul 2013 by Mickey

[Mickey 71]

Also if you can post the complete catalog number of your PanelView.

[Ken Roach 194]

What I see is that you posted three lines of my post, word-for-word identical to the way I posted them. Please do not re-post another user's text in the Quote field without at least stating clearly that you have done so. A single word, 'This', is insufficient and confusing, as the Quote field is intended to include quotations, not answers or modifications. Some users are fond of re-stating a quotation but changing the color of the applicable words. I don't like it, but at least that method is easy to see. Please remember that there are a wide variety of settings, devices, and cables in the industrial automation world, especially around the SLC-5/03 controller. The more specific and clear you can be in your posts, the better information you will get from the Forum community.