34
3-6-2
On-Delay Timer (TON) Instruction ................................................. 3-54
3-6-3
Exercise: Energy Saving Escalator ............................................... 3-58
3-6-4
Checking the Operation of the Program ........................................ 3-59
3-6-5
Checking the Operation of the Program (Watch Tab Page) .......... 3-60
3-7
Example of a Ladder Program Using Date and Time .................................. 3-62
3-7-1
Programming the NX1P Using Date and Time .............................. 3-62
3-7-2
Exercise: Continuous Operating Time of Escalator ....................... 3-62
3-8
Fundamentals of Programming to Reduce Development Time ................... 3-66
3-8-1
POUs (Program Organization Units) ............................................. 3-66
3-8-2
Programs and Execution Priorities (Tasks) ................................... 3-66
3-8-3
Functions (FUNs) and Function Blocks (FBs) ............................... 3-68
3-8-4
Sections ......................................................................................... 3-69
3-8-5
Types of Variables ......................................................................... 3-70