NO4I; Brand Allen Bradley · Allen Bradley. Main Product. Technical Reference. SLC 4-Channel Analog I/O Modules User Manual. Legislation and. Find the Other Automation NO4I-USER-MANUAL at PDF Supply. The new NO4I-USER-MANUAL is available online and will ship today. Download. The new NO4I can be purchase online and your order will ship today. Download the technical manual for wiring and installation instructions.

Author: Bramuro Maurg
Country: Suriname
Language: English (Spanish)
Genre: Video
Published (Last): 27 November 2013
Pages: 390
PDF File Size: 10.46 Mb
ePub File Size: 4.5 Mb
ISBN: 923-6-34672-674-3
Downloads: 92612
Price: Free* [*Free Regsitration Required]
Uploader: Fenriramar

Some other, more likely, possibilities are bent pins on the card connector, bad scaling, OS problems, etc. You must be manuql Control. Also, don’t rule out the input card.

It is possible there is an isolation problem with 2-wire and 4-wire transmitters on the same card but we have moved the 4-wire devices to another card.

Manuals On-line — I/O Library

This will show you where you need to focus your efforts. You have clicked on the “? I am assuming that you are using mA loops. Try putting an approriate resistor in the line, and put an oscilliscope across it to see what sort of ripple you get out of the transmitter. 1746-mo4i

Attached only at the PLC end? Product price, specification, warranty and availability subject to change without notice. The 5-bit noise is a problem.

I have never ever done that and have never had problems. I’m having a difficult time with some analogs actually all on an SLC and I’d like you comments and suggestions. By Joe on 5 March, – 17746-no4i log in and try again. Check wiring connections and terminations. By Mark on 11 March, – 5: Is this in a panel installation or being bench tested? Cable lengths from SLC analog module to the instrument may contribute to your noise problem.


What else is using that power supply? By Evandro on 9 March, – I’ve recommended redoing all the maual and checking shielding. Amnual could be a more systemic problem, for example, some unshielded device like a CRT very close to the rack. By Bob Peterson on 9 March, – 8: Please feel free to contact us at sales artisantg. What is the maximum current output 1746-noo4i the PS? Click a thumbnail to view larger image: What is the measure PS output current? We appreciate your interest in using our InstraView website!

We can’t use any damping or filtering because some of these signals are used for leak 1746-no4l and damping masks, or at least dampens, leak detection sensing. Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. You may have some issues with noise if the conduit carrying the wire isn’t isolated from say discreet control signals or motor leads.

When you say that you are 5 bits off the expected value, do you mean that, for example, when you are expecting an unscaled value of binary you get a value of binary ?

You may install a quite good brand DC power supply, Omron or Cosel brands are the one we’re mostly using. If you’re not already a member, consider joining. Start this test at the transmitter, and work your way along the signal lines until you determine where the noise is introduced. Double check all the loops, their rspective shielding and such.


If this does not work then see below. Do not connect any other load to this power supply specially inductive ones, like relays. I’m going to go out on a limb and suggest that the problem is probably not noise, at least not localized to the current loops. Some tips for better search results You may find the solution to be using a seperate power supply to power the analog loops. We know there are plenty of differences when it comes to used equipment and quite often, choosing between different pieces is difficult, especially when the equipment is not sitting right in front of you.

This is difficult one especially not being there. The problem transmitter is a rosemount C 2-wire transmitter. Our calculations indicate we have planty of margin on PS. By 146-no4i on 10 March, – 6: Due to phasing difference between two different power sources that is one item could be on phase A and other on B.

You state that if you use a simulator on an isolated power supply, that you get a much better signal, right? What are the wire lengths involved?

Scripting must be enabled to use this site.

We are seeing 5 bits of noise that we can’t explain. Username Password Remember me on this computer. Are you using it in mA mode?

Techncial Consultants matthewhyatt msn.