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Hello.
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In this video we are going to take a look to Delta PLC pulse commands and the first pulse commands is
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PLSY/DPLSY.Important note that in the beginning of the pulse commands PLC outputs to be used
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for stepping motor etc. must be transistor output.We can say if you need to create a pulse
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from plc outputs you need transistor output not a relay in Delta plc as example we can use y0 is
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as pulse output and y1 is direction change output to drive a stepper motor the commands to
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be explained may not be used in all models of Delta plc but this is just an example Y0 is use
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pulse output and Y1 is direction change and etc. but we will take a look to all of
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them and whole commands.First of all PLSY command this command generates the desired number of
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pulses at the desired frequency.
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This is the important point okay.
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You want to the pulses and this is your decision number of pulses and also frequency.
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And this is also your decision and plsy command is generating desired number of pulse and frequency
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common command usage PLSY  d56 then y0 like this as one pulse output frequency as two pulse output
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number D is external output only y0 and Y1 can be specified for this command then D50 pulse
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frequency value is written in this register for example in the command usage D60 number of
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pulses to be produced is written in this register it only accepts positive value.
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This is another one important point for this command if you want to create a pulses that's okay.
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The number of pulses to be produced.
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That's okay but you cannot produce negative numbers for this or with command.
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Just a positive values or pulses can be produced and y0 is pulse output port.Not PLSY command
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should be used as DPLSY 32 bits if the value in the 50 and D60 registers is more than 16Bit this
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is also another one important point the direction of the step or servo motors cannot be controlled with
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this command because of we were writing just the positive values for the direction we need positive
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and negative pulses for just one positive pulses.
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You can not control a direction also that the direction output Y1 must be set with the separate input
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for the direction control but in here we can see an example if M0 is activated D50 & D60.
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These are what was the d50 frequency value and d60.
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What was it the number of the pulses to be produced will be produced to y0 will activate an M0
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y1 is for the direction but the direction how we are controlling we are selecting to another one
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output and we can say to our stepper or servo motor okay Y1 is coming turn forward it is not activated
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turn another direction.
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This is not about the PLSY command, this is an external another one command or decision or
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program.
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For example in here we can see it in this picture this program application that generates 
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in here you can see it 5000 pulses at 20 Khz or 20000 herthz and a frequency
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if the M0 condition is provided and from Y0 output for Channel 0.
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So five thousand pulses will be produced.
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at 20Khz from Y0.
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Example; sensor connected to the X0 input and we want to rotate stepper motor two point five turns
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clockwise at a speed of 1000 Herthz in here.
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Let's say that the stepper motors the steps used in is one point eight degrees in the sample solution
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given above or here.
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Five hundred decimal numbers were entered for two point five turns, Why?
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Because 360 is one turn is divided by because steps of the stepper motors is 
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1,8 degrees and 360 divided by 1,8 is equals two hundred pulses are required
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for one turn.One turn two hundred required.
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So we want to turn our stepper motors 2.5 turns multiply by two point five.
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So we because of this result if we multiplied two hundred multiply by 2.5 it will be five hundred.
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We write here.
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Five hundred.
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So these pulses must be produced or generates in output.
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2.
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And if we move from this point five hundred pulses are required for 2.5 turns M1029
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bit is the flag sets when the specified number of pulses is completed.
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So when when we reach that pulses 500 pulses and M1029 auxiliary relay bit will be high
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with the input of X0
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This flag was reset and the new loop was initiated.
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So in here M1000 always on contact and we are started suddenly because M1029 is not high.
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We are producing five hundred pulses at one thousand herthz or at 1 kilohertz.
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So from the Y0.
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This is our output the motor is turning.
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When we get five hundred.
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we are activating M1029 auxiliary relay. sensor is what sensor is doing because each
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time we need to reset M1029 after 500 pulse.
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So X0 when this sensor comes becomes high.
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That moment we are resetting M1029 auxiliary relay.
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This was the example of PLSY command for this video I am finished here.
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See you in the next video.