Why using SEL bloc with EcoStruxure Control Expert V15.0 (and lower) on BMEP586040 or BMEH586040 M580 PLCs lead to an exception (error code %SW124 = 0xEC10 on CPU) ?

Hur kan vi hjälpa dig idag?

Issue :
If "SEL" bloc is executed with an input parameter with a size of 2 or 4 bytes and using it on a BMEx586040x M580 PLC, the CPU will go in exception with error code %SW124=0xEC10 because of a alignment problem in the optimized code of the bloc function "SEL".
Example Sell

Product line :
EcoStruxure Control Expert software tool with version V15.0 or lower.

Environment :
BMEx586040 with x= P or H
BMEH586040S

Resolution :
The issue will be fixed in a next revision of EcoStruxure Control Expert (> V15.0)

Workaround :
Two easy workaround exist :

1 : Duplicate the SEL bloc as shown below (size not equal to 2 or 4 bytes anymore) :
Example Sell 2