DVP PLC Read High Speed pulse input Compare Encoder Pulse ABZ and Pulse Frequency 

DVP PLC Read High Speed pulse input
Encoder Pulse A-B-Z, and Pulse Frequency
1) #highspeed -Speed #pulse count A-B-Z
2) #Calculate #PPR and Count
3) #Read Pulse #Frequency/ RPM
C235 = X0, U = M1235 OFF
When D = M1235= SET
X0= A -phase C235 = R/F = M1270
Up/Down Counter Mod = M1235
M1235 ON = C235 mod is Down Count
M1270 ON = Negative PLS
M1235 OFF = Up Counter
M1270 OFF = Positive PLS
X1 = C236
X3 = C237
X0= A -phase C235
X1 = B Phase C236
X2 = Z Phase C237
C235 Single Phase Operation
Encoder Pulse CW
Encoder Pulse CCW
All pulse are same or Positive,
If change mod then pulse
will be negative
DELTA DVP PLC HIGH- Speed Pulse Read
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A = phase
B = Phase
Z = Phase
PPR =1000
X0 = Encoder A Phase Connected
X1 = Encoder B Phase Connected
1 phase 2 Pulse input, CW = Up Count, CCW = Down Count
PPR to Count
So This was 2 Phase 2 input Counter C251 = PPR x K4 = Total Pulse
2 phase 2 Pulse input, CW = Up Count, CCW = Down Count
1000 x 4 = 4000
High Speed Pulse Compare
Use of DHSCS and DHSCR
Frequency Read in X1 input
SPD =
S1 = Input
S2 = Pulse Receiving Time ms
D = Store Frequency Data
2 phase Count = X1, X2 Two Phase Input
= C251 is a 2phase input Counter
Encoder CW = positive pls / Up
Encoder CCW = Negative pls/ DOWN
SPD= Pulse receiving time should be match with real time