plc to led sign

I have used the ViewMarq displays with an ABB AC500 PLC. Had to create some ASCII function blocks, but it worked pretty well. Displaying integers and strings, also changing colors and blinking.
 
I've done it by writing a basic program on an allen Bradley basic module on a slc500. In my particular case I had to transmit a series of codes to the sign before sending my messages.
 
I did something like this years back, displayed run speed, downtime, etc.
Used a SLC-500 and a Red Lion LED display.

Seems like the display took a BCD input so I had to convert my integers to BCD and fed plc outputs to control the display, and did some multiplexing to determine which numbers were displayed.....

kinda old school, but that was probably 20 years ago......

regards
JohnR
 
What is the PLC you are using and what is the display? I have done it many times and most manufactures have several COM's offered, if your PLC offers a ASCII output then that is a easy way but you are limited to distance
 
Spectrum Controls carries a line of displays call “InView” which used to be made by Allen Bradley. If you’re going to use AB PLC’s (or PAC’s) this is the way to go. Spectrum is a rock solid company so it’s hard to go wrong especially given Spectrum’s relationship with Rockwell (they are very close). The other advantage is you get a lot of options for communications.
http://www.spectrumcontrols.com/InView.htm
http://www.spectrumcontrols.com/pdf...20-02_A0(TECHNICAL_DATA_2706-TD007A-EN-E).pdf
 
Its doable but not cheap

See this http://www.electronicdisplays.com/database/files/EDI_Profinet_Manual68415468.pdf

They have a Profinet gateway, you would just need to replace the Ethernet switch with a wireless switch

More reading material...

http://wfcs2006.ieiit.cnr.it/indday/siemens.pdf

http://w3.siemens.com/mcms/automati...res_and_benefits/flexibility/pages/iwlan.aspx

I would still try and run a Ethernet cable, I dont like using wireless if you have a lot of electrical noise around and all of my projects did

I have also used http://www.electronicdisplays.com/ and they have very good products
 
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