Peter Nachtwey
Member
More Modicon
A 984 type Modicon programm can also be divided into segments which may be scheduled more than once per scan. The inputs are read just before the segment is executed and the outputs are written just after the segment is executed. This means that I/O is being updated continously and synchronously, even while executing ladder in the next or previous segment. This just-in-time I/O is superior to most other PLCs have to offer. I have been told that the Modicon IEC programming does not support this feature. Is that a step forward?
A 984 type Modicon programm can also be divided into segments which may be scheduled more than once per scan. The inputs are read just before the segment is executed and the outputs are written just after the segment is executed. This means that I/O is being updated continously and synchronously, even while executing ladder in the next or previous segment. This just-in-time I/O is superior to most other PLCs have to offer. I have been told that the Modicon IEC programming does not support this feature. Is that a step forward?