6 BASIC INSTRUCTIONS
6.2 Arithmetic Operation Instructions
299
6
Processing details
• These instructions decrement the 32-bit binary data in the device specified by (d) by one.
• When the DDEC(P) instruction is executed while the data in the device specified by (d) is -2147483648, 2147483647 is
stored in the device specified by (d).
• When the DDEC(P) instruction is executed while the data in the device specified by (d) is 0, -1 is stored in the device
specified by (d).
• When the DDEC(P)_U instruction is executed while the data in the device specified by (d) is 0, 4294967295 is stored in the
device specified by (d).
Operation error
There is no operation error.
73500 (BIN)
73499 (BIN)
-1
b0
(d)
···
···
(d)+1
(d)
(d)+1
b31
b16 b15
b0
···
···
b31
b16 b15
Summary of Contents for MELSEC iQ-R Series
Page 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Page 34: ...32 MEMO ...
Page 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Page 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Page 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Page 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Page 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Page 2109: ......