Hi all,
First, thank you for reading the thread. So I had a task as the following:
An up-counter must be programmed as part of a batch-counting operation to sort parts automatically for quality control. The counter is installed to divert 1 part out of every 8 for quality control or inspection purposes.
The circuit operates as follows:
When the Start ‘push to make’ (not toggle) switch (I1) is pressed/released, and gets latched on (B1: RS latch), the main conveyor line (Q1) will be energised, and parts will start to pass the proximity switch (B2) every 2 s
The pulses generated by the proximity switch (B2: pulse generator) should be used to increment the quality check counter (B3). When the B3 = 4, the conveyor gate solenoid (Q2) will then activate for 1.5 s and the quality line conveyor (Q3) will run for 4 s to take a sample object
The gate Q2 returns to its normal position when the 1.5 s time period ends, and the counter also resets back from 4 to 0. The main line Q1 does not stop (unless the stop is pressed)
The process is repeated with a sample taken at every 4 object counts
A reset ‘push to make’ (not toggle) switch (I2) is provided to reset the counter manually but not to stop the process.
A stop ‘push to make’ (not toggle) switch (I3) is provided to stop the process at any time.
The process should automatically reset and repeat until the stop switch is pressed.
So here is what I have done:
And this was the feedback I got:
2 Your program should have push-to-make switches not toggle type. Proximity switches are not actual switches in the simulation - reread program instructions. Once the start is pressed the conveyor system should run automatically with no further intervention.
So I already changed everything to push to make switches but I'm having hard time with the proximity switches?
Anyone has got any idea?
Please help if you have a minute of your life.
Thanks
First, thank you for reading the thread. So I had a task as the following:
An up-counter must be programmed as part of a batch-counting operation to sort parts automatically for quality control. The counter is installed to divert 1 part out of every 8 for quality control or inspection purposes.
The circuit operates as follows:
When the Start ‘push to make’ (not toggle) switch (I1) is pressed/released, and gets latched on (B1: RS latch), the main conveyor line (Q1) will be energised, and parts will start to pass the proximity switch (B2) every 2 s
The pulses generated by the proximity switch (B2: pulse generator) should be used to increment the quality check counter (B3). When the B3 = 4, the conveyor gate solenoid (Q2) will then activate for 1.5 s and the quality line conveyor (Q3) will run for 4 s to take a sample object
The gate Q2 returns to its normal position when the 1.5 s time period ends, and the counter also resets back from 4 to 0. The main line Q1 does not stop (unless the stop is pressed)
The process is repeated with a sample taken at every 4 object counts
A reset ‘push to make’ (not toggle) switch (I2) is provided to reset the counter manually but not to stop the process.
A stop ‘push to make’ (not toggle) switch (I3) is provided to stop the process at any time.
The process should automatically reset and repeat until the stop switch is pressed.
So here is what I have done:
And this was the feedback I got:
2 Your program should have push-to-make switches not toggle type. Proximity switches are not actual switches in the simulation - reread program instructions. Once the start is pressed the conveyor system should run automatically with no further intervention.
So I already changed everything to push to make switches but I'm having hard time with the proximity switches?
Anyone has got any idea?
Please help if you have a minute of your life.
Thanks
Last edited: