Measuring The Density Of 32 Bit Binary Pulses - Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual

Measuring the density of 32 bit binary pulses

DSPD
This instruction counts the number of times the device input specified by (s1) turns off  on only for the time (in 32-bit data
units) specified by (s2)  1ms and stores the operation result in the device specified by (d). The high-speed pulse input/output
module is not supported.
Ladder diagram
(s1)
FBD/LD
EN ENO
s1 d
s2
Setting data
■Descriptions, ranges, and data types
Operand Description
(s1) Pulse input
(s2) Measurement time (Unit: ms)
(d) Head device number for storing the measurement result
EN Execution condition
ENO Execution result
■Applicable devices
Operand Bit
X, Y, M, L, SM,
F, B, SB, S
*1

(s1)

(s2)

(d)
*1 When a bit device is specified, specify one of X0 to X17.
Only X can be used for a bit device.
The nibble of a bit device cannot be specified.
*2 When a word device is specified, specify one of the channel numbers (CH1 to CH8).
When FX3 compatible function of a high-speed counter is valid, a channel number cannot be specified. Only X can be used for a bit
device.
If the channel numbers is specified in (s1), an error occurs.
8 APPLICATION INSTRUCTION
592
8.17 Pulse Related Instruction
(s2) (d)
Word
T, ST, C, D, W,
SD, SW, R
*2



Structured text
ENO:=DSPD(EN,s1,s2,d);
Range

-2147483648 to
+2147483647



Double word Indirect
U\G Z LC
  
  
  
Data type
Bit/Word/Double word
32-bit signed binary
32-bit signed binary
Bit
Bit
Constant
specification
LZ K, H
  
  
  
Data type (label)
ANY_ELEMENTARY
ANY32
ANY32
BOOL
BOOL
Others
E $
  
  
  