Mitsubishi Electric MELSEC iQ-R Series - Measuring the Density of Pulses; Pulse Related Instructions

894
7 APPLICATION INSTRUCTIONS
7.17 Pulse Related Instructions
7.17 Pulse Related Instructions
Measuring the density of pulses
SPD
This instruction counts the device input only for the specified time.
■Execution condition
Setting data
■Descriptions, ranges, and data types
*1 Only labels assigned to device (X) can be used.
■Applicable devices
*1 Only X can be used. Note, however, that it can be used only within the range of the number of I/O points (the number of points that can
access I/O modules).
Ladder ST
ENO:=SPD(EN,s1,s2,d);
FBD/LD
Instruction Execution condition
SPD
Operand Description Range Data type Data type (label)
(s1) Pulse input device number  Bit ANY_BOOL
*1
(s2) Measurement time, or the device number of the device
containing the measurement time (unit: ms)
-32768 to 32767 16-bit signed binary ANY16
(d) Device for storing the measurement result  16-bit signed binary ANY16
EN Execution condition  Bit BOOL
ENO Execution result  Bit BOOL
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB,
FX, FY
J\ T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD
U\G, J\,
U3E\(H)G
Z LT, LST,
LC
LZ K, H E $
(s1) 
*1
    
(s2)   
(d)   
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety) (Redundant) (Process)
(s1) (s2) (d)
EN ENO
ds1
s2