I'm an electrician and I started to learn programming. My dream is to start programming for Siemens.
I spoke with a company more about a job and they gave me a home work to do and learn.

Can someone help me to do this program?

Escalator Program:
An escalator is placed in standby state via a button (S1) [E2.0]
The ready light (H5) [A0.5] indicates that the Escalator is ready.
Escalator ready = light permanently illuminated
Escalator is not ready = light flashes with a frequency of 4 Hz.
The motor starts when people passing the escalator interrupt the photocell (S2) [E2.0].
The drive should be switched on for 20 seconds then.
There needs to be considered: if several people in a row pass the escalator, also the last person must
receive the full 20 seconds of runtime.
The motor of the escalator is (M1_RL) [A1.1]. The movement of the motor (M1_RL) is also visualized
by the lamps H1> H2> H3. (H1) [A0.0]; (H2) [A0.1]; (H3) [A0.2]
Starting with H3, the lights have to rotate while M1_RL is running with an interval of 1.5 seconds.
When button S3 [E2.2] is pushed, the escalator is set out of standby mode again. If a person is
already on the escalator, the actual cycle needs to be ended completely before switching off the
escalator.
If one of the emergency stop buttons (S4_1) [E2.3], (S4_2) [E2.4] (0V=emergency stop) is pressed the
system needs to be stopped immediately and the emergency status needs to be indicated by lamp
(H7) [A0.6] blinking with 1 Hz.

DavidMoore

I'm an electrician and I started to learn programming. My dream is to start programming for Siemens.
I spoke with a company more about a job and they gave me a home work to do and learn.

Can someone help me to do this program?

Hi David,

How do you want us to help you?

Okay.. you wrote the whole problem out in words for us.. word for word as you have received it. I am sure it is not your intention that we do this problem for you - right?

Lets start at chapter 0 - please show us that you have taken ownership of the "problem". Get the problem statement in a format that is easy to go through. Normally I draw pictures and use a type of shorthand to write out the conditions.

I recommend.. make a hand sketch first showing all the various buttons, movements, sensors and so on. Then scan the sketch into the computer (or take a hand-phone photo) and attach the picture here.

Forget the actual coding for the moment. Think about the problem and write some of your thoughts down that explains what needs to happen. Again if you draw sketches it will help you even more to imagine what needs to happen. your task is to get your thoughts organised on "paper" first before rushing to the computer to code.

When you return.. please tell us which coding language do you intend to use as well as which software and hardware base.

Greetings.
w

Hi David,

Before starting find this post ..it helps to understand the things behind programming

read before starting ur programming carrier