
88
6.4.3 Double integer comparison
Input / output
Operand
Data type
Input
ID, QD, MD, SD, SMD, VD, LD, HC, AC, constant, *VD, *LD, *AC
Double integer
output
(
FBD
)
I, Q, M, SM, T, C, V, S, L, Enable bit
Boolean
Comparison double integer instructions are used for
comparing two values
:
IN1 and IN2.
Comparison includes
:
IN1 = IN2
、
IN1 >= IN2
、
IN1 <= IN2
、
IN1 >
IN2
、
IN1 < IN2 or IN1 <> IN2.
Double integer comparison with symbol
(
16#7FFFFFFF >
16#80000000).
In LAD, when the comparison result is true, the contact
will be open.
In FBD, when the comparison result is true, the output
will be open.
Attention:The following conditions are serious errors .
These errors will cause the PLC to immediately stop the
execution of the program:
1.Enter illegal indirect address.
2.Enter the illegal real number.
Example:
Содержание PR-12 Series
Страница 26: ...19 1 xLogic CPU PR 12 Series CPU PR 14 and PR 18 series 1 PR 18 CPU 2 PR E extension...
Страница 27: ...20 PR 24 series...
Страница 47: ...40 5 3 Instruction tree...
Страница 50: ...43 CAN interface PLC supports CAN communication CAN communication will be introduced in the communication block...
Страница 54: ...47 Force table interface When PLC is converted from RUN mode to STOP mode the selected output points will be 1...
Страница 58: ...51 5 3 10 Instructions Instructions will be explained in detail in the instructions section...
Страница 73: ...66 2 Select the PLC model ensure that the PLC model in the software is consistent with the actual PLC model...
Страница 93: ...86 2 Enter the illegal real number Example...
Страница 127: ...120 Example...
Страница 137: ...130 Kc gain TD Differential time Ts Sampling time PVn 1 Last time process variable PVn Process variable...
Страница 139: ...132 Special memory bit SM1 0 Zero result SM1 1 overflow SM1 2 Negative result Example...
Страница 143: ...136 Special memory bit SM1 0 Zero result SM1 1 overflow SM1 2 Negative result SM1 3 The divisor is 0 Example...
Страница 149: ...142 Example...
Страница 152: ...145 Example ATCH instruction only needs to be connected once...
Страница 154: ...147 Example...
Страница 172: ...165 Example Notes Cycle times are set to 100 times At the end of the cycle the value of VW100 is 100...
Страница 175: ...168...
Страница 182: ...175 Example When the value of M0 0 is 1 VB0 moves a bit towards the left and VB10 moves a bit towards the right...
Страница 217: ...210 Example Four arithmetic operation Main program...
Страница 218: ...211 Subroutine...
Страница 252: ...245 10 8 Example of serial port free port communication Program 1...
Страница 254: ...247 10 9 Example of CAN free port...
Страница 256: ...249 10 10 MODBUS communication master program Read multiple hold registers and write multiple hold registers...
Страница 258: ...251 Conversion of Process quantity and set value unit...
Страница 259: ...252 Call a PID command every 0 3 seconds...
Страница 260: ...253 The conversion of output value unit...