Comparing two DataBlock in a PLC

[Guest Conno]

Hello everybody, I need help with PLC code for comparing 2 DB's in the PLC. example: DB1 contains 100 floating points DB2 contains 100 floating points How can I compare if the 100 floats in DB1 is egual to the 100 floats in DB2 in a smart way? Would be nice to have a loop that runns 100 times. Hope for help regards

[Klaus 0]

I wrote a bit of code hope this is what you are looking for. Remember that 100 Real value compares probably will add a little peak to the scan cycle time if this i critical you can spilt the comparision over more scancycles. CompareR.zip Edited 4 Jul 2004 by Klaus

[Guest Conno]

Thanks, That was exactly what I needed.