96
SPEED OUTPUT: SPED(885) Section 5-5
5-5 SPEED OUTPUT: SPED(885)
Purpose SPED(885) is used to set the output pulse frequency for a specific port and
start pulse output without acceleration or deceleration. Either independent
mode positioning or continuous mode speed control is possible. For indepen-
dent mode positioning, the number of pulses is set using PULS(886).
SPED(885) can also be executed during pulse output to change the output
frequency, creating stepwise changes in the speed.
This instruction is supported by the CJ1M-CPU21/CPU22/CPU23 CPU Units
only.
Ladder Symbol
Variations
Applicable Program Areas
Operands P: Port Specifier
The port specifier specifies the port where the pulses will be output.
M :Output Mode
The value of M determines the output mode.
F: First Pulse Frequency Word
The value of F and F+1 sets the pulse frequency in Hz.
SPED(885)
P
M
F
P: Port specifier
M: Output mode
F: First pulse frequency word
Variations Executed Each Cycle for ON Condition SPED(885)
Executed Once for Upward Differentiation @SPED(885)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
PPort
0000 hex Pulse output 0
0001 hex Pulse output 1
03478
111215
M
Mode
0 hex: Continuous
1 hex: Independent
Direction
0 hex: CW
1 hex: CCW
Pulse output method (See note.)
0 hex: CW/CCW
1 hex: Pulse + direction
Always 0 hex.
Note: Use the same pulse output method when using both pulse outputs 0 and 1.
F
F+1
0
15
Lower word of target frequency
Upper word of target frequency
0 to 100,000 Hz
(0000 0000 to 0001 86A0 hex)
To Next Page
Loading...
Need help?
General
