-
Posts
2 -
Joined
-
Last visited
Content Type
Profiles
Forums
Gallery
Events
Blogs
Downloads
Articles
Media Demo
Posts posted by George Young
-
-
Just a side note on using Unican broadcasts. I have been using the Unican broadcast in several project now and have been having problems with the integrity of the broadcast. For example in a 8 node network of V1210 & Ex-Rc1, each unit broadcasts a unique programmer assigned constant integer every 30 seconds. However quite frequently the data integer received in SI200 does not come from the CANbus id in SI201.
For example if the following CANbus IDs broadcast the integers as follow
ID Integer
2 200
3 300
4 400
5 500
At the receiver almost all of the time for ID 2 (Si201) we get integer (Si200) 200, however sometimes we will get ID 4 and integer 200, or ID 5 and integer200, or ID 3 and integer 500, or any combination of CANvus ID and integers.
Looks like Si200 and Si201 are not updating at the same time.
In the logic I am doing two consecutive stores, in the same net for Si200 and Si201, so it seems that logic would be fast enough.
We also have this issue in a smaller network of one V1210 and two Ex-Rc1.
Seems like a bug to me.......
I see you are using broadcasts, and if you have multiple stations issuing broadcasts, just wondering if you are experiencing this issue?
Thanks
Ethernet setup v1040
in Vision & Samba PLC + HMI Controllers & VisiLogic Software
Posted
Add another socket for protocol ICMP
Pings are ICMP protocol
TCPSockets.vlp