Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual page 915

High-speed Counter/Pulse Output Instructions
Ladder Symbol
Variations
Applicable Program Areas
Operands
Operand Specifications
876
PRV2
C1
C2
D
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification
Block program areas
OK
C1: Control Data
The function of PRV2(883) is determined by the control data, C1.
C1
0@*0 hex Converts frequency to rotation speed.
(See note.)
0001 hex Converts counter PV to total number of revolutions.
Note The second digit of C (@) specifies the units and the third digit (*) specifies
the frequency calculation method.
C1 0
(When Conversion Type is "Frequency to speed")
Pulse Frequency Calculation Method
0 hex: Standard calculation method
1 hex: High-frequency calculation method, 10-ms sampling (See note.)
2 hex: High-frequency calculation method, 100-ms sampling (See note.)
3 hex: High-frequency calculation method, 1,000-ms sampling (See note.)
(When Conversion Type is "Frequency to speed")
Speed Unit
0 hex: r/min
1 hex: r/s (See note.)
2 hex: r/h (See note.)
C2: Pulses per Revolution
Specifies the number of pulses per revolution (0001 to FFFF hex).
D: First Destination Word
The PV is output to D or to D and D+1.
15
D Conversion result (Rightmost 4 digits)
D+1 Conversion result (Leftmost 4 digits)
Area
CIO Area
Work Area
C1: Control data
C2: Pulses per revolution
D: First destination word
Step program areas
OK
PRV2(883) function
Conversion Type
0 hex: Frequency to speed
1 hex: Counter PV to total revolutions
0
C1
--- CIO 0000 to
CIO 6143
--- W000 to W511
Section 3-21
PRV2(883)
@PRV2(883)
Not supported
Subroutines Interrupt tasks
OK OK
C2 D
CIO 0000 to
CIO 6142
W000 to W510