Forums.MrPLC.com > SLC 5/03 CH0-RS232 OUT

Forums.MrPLC.com > PLCs and Supporting Devices > Allen Bradley

vanilla_gorilla

May 20 2006, 02:01 PM

I'm going to play with this later, but figured I would start here.....

In short......

Is it possible to to read the SLC output on CH0 rs232 with Hyperterminal ? (Assuming I am outputting an ASCII string ?)

I want to test my programming before my LED Marquee arrives (which will be connected via rs232)

In the same thought, I have an RS232 to Ethernet adapter, forget the model, but is an allen bradley model, would it be possible to read in the ascii strings here ?? If so is there a downloadable software or ? 9Im prett sure hyperterminal wont talk ethernet, correct me if I am wrong. )

My initial instinct is I believe it should be possible...Was wondering if anyon has/had done this and any config info that might save me some time ??

Thx guys

TWControls

May 20 2006, 02:16 PM

I think the serial to Ethernet adaptor you are speaking of is the 1761-NET-ENI

You can capture ASCII over a serial line with the hyperterminal

Capturing ASCII over the NET-ENI might be a bit harder though I think I have heard of it being done here. You might check the download section. If this is just for the temporary testing I think I would just use the serial port

TWControls

May 20 2006, 02:43 PM

Might try this as far as the serial.

QUOTE(chakorules @ Mar 29 2006, 11:36 AM) [snapback]30682[/snapback]

Screw hyperterminal!

Download this:
http://forums.mrplc.com/index.php?autocom=downloads&showfile=532

It's very flexible and will tell you all the hidden characters that are being transmitted. Best tool for RS-232 I have ever used.

vanilla_gorilla

May 20 2006, 03:52 PM

Here in lies my next issue.

Plc is a slc 5/03..So it has DH485, and RS232 ports...

My laptop doesnt have a real serial port, and as such I am using a USB to Serial converter.

I am currently connected to the PLC with dh485 and PIC... (Using up my serial port)

How am I going to monitor the PLC out data as well as being online ??

With the equipment I have I dont think I am going to be able to.....

1761 NET ENI
1747 PIC
No real serial port on Laptop..... Ethernet and USB......

The 1761 net eni pulls data from the RS232 PORT.....

I'd need an ethernet/usb to dh485 adapter or ??

Sure dont like to make things easy !!

But then if it was I guess everyone would do it !!

Any ideas ??

Thx

QUOTE(TWControls @ May 20 2006, 03:43 PM) [snapback]34240[/snapback]

Might try this as far as the serial.

QUOTE(chakorules @ Mar 29 2006, 11:36 AM) [snapback]30682[/snapback]

TWControls

May 20 2006, 04:07 PM

A 1747-UIC is a USB to serial adaptor. It should do the trick but I have never tried to capture what is going across it. Again though, is this just for testing? What is your ultimate goal?

Ken Roach

May 20 2006, 04:10 PM

You are making my head hurt.

You say that you have no real serial port, so you are using a USB/Serial converter and that you have a 1747-PIC attached to it.

First off, this should be impossible unless you have one of the very few USB/Serial converters that would run the PIC driver, and even then only under Windows 95/98. If you are running a USB/serial converter with the 1747-PIC driver successfully under Windows 2000 or XP, then you are in very rare company indeed.

Most users without a real serial port resort to the 1747-UIC USB/DH485 converter to communicate with Channel 1 of the SLC-5/03 controller.

To capture serial ASCII data from the Channel 0 port, you will need another USB/RS232 interface. The software you use can be Hyperterminal, or SuperMon, or SerMon, or HHD Serial Monitor, or any other popular serial monitoring software.

I have HHD Software's Serial Monitor software and have found it extremely useful and worth the $80 I paid for it. For monitoring simple unidirectional ASCII data, a freeware product should do the trick.

vanilla_gorilla

May 20 2006, 04:24 PM

QUOTE(Ken Roach @ May 20 2006, 05:10 PM) [snapback]34248[/snapback]

You are making my head hurt.

Your head hurts......Join the club !!

I think you have nailed one of my issues, the serial/usb to PIC thing..Having trouble getting it going, and after reading your post, understand why.

I guess without the USB to DH485 I am SOL for now....

My original question, I believe has been answered, in theory I can read CH0 ascii into hyperterminal or any of these other terminal emulation programs...

Without a USB/DH485 converter I wont be able to be online and read the CH0 out.

Thx guys

You say that you have no real serial port, so you are using a USB/Serial converter and that you have a 1747-PIC attached to it.

First off, this should be impossible unless you have one of the very few USB/Serial converters that would run the PIC driver, and even then only under Windows 95/98. If you are running a USB/serial converter with the 1747-PIC driver successfully under Windows 2000 or XP, then you are in very rare company indeed.

Most users without a real serial port resort to the 1747-UIC USB/DH485 converter to communicate with Channel 1 of the SLC-5/03 controller.

To capture serial ASCII data from the Channel 0 port, you will need another USB/RS232 interface. The software you use can be Hyperterminal, or SuperMon, or SerMon, or HHD Serial Monitor, or any other popular serial monitoring software.

I have HHD Software's Serial Monitor software and have found it extremely useful and worth the $80 I paid for it. For monitoring simple unidirectional ASCII data, a freeware product should do the trick.

TWControls

May 20 2006, 04:28 PM

Ok I admit I have been napping here but if there is a question in the previous post can you split it from Kens. It's giving me a headache trying to read it, you wrote inside his quote

vanilla_gorilla

May 20 2006, 06:48 PM

QUOTE(TWControls @ May 20 2006, 05:28 PM) [snapback]34252[/snapback]

Ok I admit I have been napping here but if there is a question in the previous post can you split it from Kens. It's giving me a headache trying to read it, you wrote inside his quote

I apologise...No, I think I got it straight...

I do have something else along the same lines......

If I connect a SLC 5-03 with a 1761-net-eni using a 1761-pm02 cable.
The ethernet cable I use to connect the 1761-net-eni to an ethernet hub is it a crossover enet cable or a regular patch (straight through) cable ?

Thx and sorry for the confusion

TWControls

May 20 2006, 06:52 PM

It is a regular patch cable. What series 1761-NET-ENI do you have?

vanilla_gorilla

May 20 2006, 07:03 PM

QUOTE(TWControls @ May 20 2006, 07:52 PM) [snapback]34260[/snapback]

It is a regular patch cable. What series 1761-NET-ENI do you have?

Ser C frn 3.01

Is there anything special I need to do at the PLC end ?? (or is the 1761 net transparent to the PLC ?)

I can find the IP adress of the enet, but I cant find a PLC connected to that node......

Any help/ideas would be appreciated....

Cheers

TWControls

May 20 2006, 08:55 PM

I'm assuming that you can see the 1761-NET-ENI in RsLinx. The first thing I would do is make sure that you have the correct EDS files for the 1761-NET-ENI and the SLC. That causes more trouble than anything

Ken Roach

May 21 2006, 01:36 PM

VG, you are still rocketing forward on the wrong path.

Your original post was about how to capture ASCII traffic coming out of Channel 0 of the controller, so you could develop your LED display code ahead of delivery.

Now you're going on about connecting a 1761-NET-ENI to that channel.

The Net-ENI only encapsulates DF1 protocol traffic inside A-B EtherNet/IP packets. It has nothing to do with ASCII and is not some sort of general-purpose Ethernet translation tool that will allow you to observe the serial port traffic over Ethernet.

You need to plainly and clearly define your goals before you can get good advice about how to achieve them. You can get all the help you need or want with the Net-ENI, but it will have zero effect on your ASCII project.

also; the reason you can't "see" the SLC-5/03 attached to the 1761-NET-ENI is that the Net-ENI needs to have the SLC Channel 0 set for "System Mode" with DF1 Full Duplex protocol.

This is opposite of what you said you wanted to do; the controller can have Channel 0 is User Mode (ASCII) or System Mode (DF1) but not both.

If you want to monitor the Channel 0 ASCII traffic while being online with the controller, your only option is to have two serial ports or two USB devices to connect to the two channels of the controller.

This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.