How to receive CAN data word larger than 4 bytes
Posted: Sat Mar 24, 2012 8:43 pmHi,
I have been setting up a custom CAN template for an INSGPS device. The lattitude and longitude are each 6 byte singed integers, 1 count=180/2^39 degrees. The ACL will not allow me to receive a word longer than 4 bytes. I have looked for a concatenate function within both the ACL manager and i2 Pro but can't find one. I am thinking I will have to write a custom function or plug in to concatenate and then apply the scaling. My plan would be to receive the 6 byte word as qty 3, 2 byte unsigned words. I would then have my plugin convert the numbers back to binary and concatenate the the words together then convert to decimal and scale to give the ouput as a channel.
Has anyone had experience with this, if not does my approach sound sensible and feasible. I am not very familiar with VB but I work with some data acquisition software engineers who may be able to help me write the script.
Cheers
Olly
I have been setting up a custom CAN template for an INSGPS device. The lattitude and longitude are each 6 byte singed integers, 1 count=180/2^39 degrees. The ACL will not allow me to receive a word longer than 4 bytes. I have looked for a concatenate function within both the ACL manager and i2 Pro but can't find one. I am thinking I will have to write a custom function or plug in to concatenate and then apply the scaling. My plan would be to receive the 6 byte word as qty 3, 2 byte unsigned words. I would then have my plugin convert the numbers back to binary and concatenate the the words together then convert to decimal and scale to give the ouput as a channel.
Has anyone had experience with this, if not does my approach sound sensible and feasible. I am not very familiar with VB but I work with some data acquisition software engineers who may be able to help me write the script.
Cheers
Olly