Chapter 8
Precautions During Programming
8.1 Use of Duplicated Output 8 − 3.........................
8.1.1 Duplicated Output 8 − 3.......................
8.1.2 When Output is Repeated with an OT, KP,
SET, or RST Instruction 8 − 4..................
8.2 Handling BCD Data 8 − 5..............................
8.2.1 BCD Data 8 − 5..............................
8.2.2 Handling BCD Data in the PLC 8 − 5............
8.3 Handling Index Registers 8 − 7.........................
8.3.1 Index Registers 8 − 7.........................
8.3.2 Memory Areas Which can be Modified
with Index Registers 8 − 7.....................
8.3.3 Example of Using an Index Register 8 − 8.......
8.4 Operation Errors 8 − 10..............................
8.4.1 Outline of Operation Errors 8 − 10.............
8.4.2 Operation Mode When an Operation
Error Occurs 8 − 10..........................
8.4.3 Dealing with Operation Errors 8 − 11............
8.4.4 Points to Check in Program 8 − 12.............
8.5 Instruction of Leading Edge Detection Method 8 − 13....
8.5.1 Instructions of Leading Edge Detection
Method 8 − 13...............................
8.5.2 Operation and Precautions at Run Start
Time 8 − 14
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