Welcome, Guest. Please login or register.
Did you miss your activation email?
May 23, 2012, 07:47:58 PM
Home Help Login Register
News: Any Problems or Experience with Industrial Robots ?
Register and place your Question / Answer to worldwide Robotexperts right here !

+  Robotforum | Support for Robotprogrammer and Users
|-+  Industrial Robot Help and Discussion Center
| |-+  KUKA Robot Forum (Moderators: Werner Hampel, Martin H, SkyeFire)
| | |-+  Parity bit problems
0 Members and 1 Guest are viewing this topic. « previous next »
Pages: [1] Print
Author Topic: Parity bit problems  (Read 322 times)
PLCPeriphery
Newbie
*
Offline Offline

Posts: 2


« on: January 13, 2012, 08:04:52 PM »

So, nice time for a first post!

I'm integrating a Kuka with a KRC2 controller right now, and just getting it up into auto external. I've got 8 styles, numbered 1-8 that I'd like to call via a program number.  Setting PGNO_BIT 1-7 is not big deal with my PLC logic. I'm having a hard time with the parity and it's baffling me.

So, I'll be honest, I'm a young one. Everything I've done is Ethernet for the most part and never had to worry about the parity bits of yesteryear. But in my reading on odd and even parity(and this Kuka is ODD according to page 93 of the Kuka KRC2 configuration manual) for my program numbers 1-8:

Style      Binary           Parity Bit
1        1000000                 0
2        0100000                 0
3        1100000                 1
4        0010000                 0
5        1010000                 1
6        0110000                 1
7        1110000                 0
8        0001000                 0


However, I've called styles 1-4 so far, and gotten these results with the given numbers:

Style      Parity Bit          Result
1                0                P00: Parity fault
1                1                Style runs fine
2                1                Style Runs fine
3                0                Style runs fine
3                1                P00: Parity Fault
4                1                Style runs fine

Kuka's documentation isn't too clear on this, but it's certainly not what I would expect.

What parity bits should I expect for 1-8? Should I just say "too much time" and figure out what works and run with that or what?

1 should have a 0 parity bit with even parity, right? Or am I crazy?

Thanks for all your help, and I look forward to contributing much in the future.
Logged
kr16_2
Full Member
***
Offline Offline

Posts: 204


« Reply #1 on: January 13, 2012, 09:00:14 PM »

Parity bit was used in old times when each input was hardwired to KRC.
When you used filed bus like EthernetIP or Devnet you don't need parity bit.
Set it to 0.
Logged
PLCPeriphery
Newbie
*
Offline Offline

Posts: 2


« Reply #2 on: January 13, 2012, 09:07:00 PM »

Well I obviously can't read. I set the input to 0 in auto_external and it worked! Thank you so much!
Logged
Pages: [1] Print 
« previous next »
Jump to:  


Login with username, password and session length

Powered by MySQL Powered by PHP Powered by SMF 1.1.16 | SMF © 2011, Simple Machines Valid XHTML 1.0! Valid CSS!