Wordman
MrPLC Member-
Content count
124 -
Joined
-
Last visited
Community Reputation
0 NeutralAbout Wordman
-
Rank
Engineer
Contact Methods
- Website URL http://
- ICQ 0
Profile Information
- Country United States
-
I don't understand why anyone would use NPN inputs in any application! Whoever has, i'm interested to know why?
-
you have a two learning curves to cross. 1- programming a SLC; 2- developing in wonderware Instructions? you could scale your analog inputs in the PLC with a SCP or CPT (see the AB Analog Input Module manual for programing examples). The SLC does not record the historical data, wonderware does. Speed? You can trend your tags at a 100ms (or 0 if you want) interval, but it will only record as fast as the driver polls the data, and assuming you are using a DH+ network I dont' think you will get that high of resolution.
-
Is wireless DH+ or RIO possible?
Wordman replied to wildswing's topic in Allen Bradley / Rockwell Automation
Oi vey, be careful about using cobbled up communication schemes if you are using it for time critical I/O. Does anyone know if there is certified wireless Ethernet I/P routers? I didn't think there was. I was talking to my vendor about a bluetooth I/O setup. I think it was phoneix contact as well, but for discrete I/O (profibus maybe) rather than serial conversion. -
From my experience with earlier versions of Concept, I've stayed away from it as much as possible. Maybe the frenchies have improved it since then, but now wehre I work all I use is AB...
-
Rockwell Plans To Double Cost Of Software For Small Users
Wordman replied to BobLfoot's topic in Allen Bradley / Rockwell Automation
Ken is right, you never had 2 licenses before, you were just allowed to control it at your own discretion. That's too bad too, it useful for was development -
Cheap Easy Way To Display Integer
Wordman replied to rwraley's topic in Allen Bradley / Rockwell Automation
Aww, the Micro 1000 can't do ASCII control -
well you can send multiple commands obviously (some other subroutines fire off over 10 blocks), since it works most of the time. I do agree that it's not best practice, hence the problems i'm seeing. I didn't write the program, I more or less inherited it, so I"m not taking credit for it's flaws Nevertheless, I've decided I am going to re-write it, I agree with your approach. Thanks for the suggestions guys, I'll let you know if I ever see the problem again after I change it.
-
twcontrols: perhaps it is a buffer issue, I will look into something like that. jstolaruk: yes the subroutines are run conditionally. if i were to wait for the DN of the previous block, wouldn't I have to loop the subroutine and wait several scans before it was done? thanks for the replies. it's just weird to track down a problem when it works 99.98% of the time
-
This is on a SLC 5/04. There are calls to various subroutines which send ascii to a printer. Every so often (like months at a time) random EN bits toggle on, and the receipts that are print out are messed up. So I have to go in and find the culprits and toggle them back. Attached is an example of one of the subroutines. Any ideas on whats causing/how to avoid?
-
Cheap Easy Way To Display Integer
Wordman replied to rwraley's topic in Allen Bradley / Rockwell Automation
Find a old computer, and send ASCII via rs232 to hyperterminal -
You may need the 6201-DDA Software.. I am not sure that there are drivers for more recent software, maybe someone else knows
-
Anybody Running Control Logix And Ifix?
Wordman replied to Bill Linne's topic in Allen Bradley / Rockwell Automation
The ABR may support contrologix but it doesn't support tagname addressing, so you have to use a map array. Using the OPC driver instead will save a lot of headache... -
groups.google.com
-
online community where you make a profile and collect friends, send bullitens and can have a blog. .. why? :)
-
Data Table Control
Wordman replied to Colin Carpenter's topic in Allen Bradley / Rockwell Automation
Can you create new data files using partial download?