L D[AR2P#0.0]
Lifetime Supporting Member
I came across this old chestnut recently and thought I'd post it.
A PLC project involving structured text (ST), function block diagram (FBD) and statement list (IL) has been
quoted at 1000 hours. There are a total of 100 blocks in the project and the time to code and test each type of block is as follows:
ST = 50 hours
FBD = 10 hours
IL = 0.5 hours.
How many of each type of block are there?
Answers by PM with reasoning please - don't bother with brute force solutions.
A PLC project involving structured text (ST), function block diagram (FBD) and statement list (IL) has been
quoted at 1000 hours. There are a total of 100 blocks in the project and the time to code and test each type of block is as follows:
ST = 50 hours
FBD = 10 hours
IL = 0.5 hours.
How many of each type of block are there?
Answers by PM with reasoning please - don't bother with brute force solutions.