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7/28/2019 GSM Report Ilir Fazliu
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GSM-Driven Relay.
REPORT
GROUP 10:
1. ILIR FAZLIU2. JUAN CARLOS GARCIA
3. SLAH UH DIN SANI
4. YUNJIAHANG LIU
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I. Introduction
The assignment was to create controls for a wood conveyor. The program was made
with Zelio Soft 2. In this experiment we have these tools:
1. Zelio smart relay
2. Personal computer 3. Zelio Soft software
4. Wood conveyor-LAB
We familiarized with devices and tested the first simple program to be sure that
everything was working fine.
II. Preliminary work.
The Zelio smart relay application consists of four parts and their roles:
- Smart relay runs the whole system, conveyor according to the requirement.
-
Power supply provides energy to run the control system and conveyor.- COM module is used for controlling the system through mobile phone, emailor.
- GSM modem receives request, transmits it to the management center and
makes the conveyor following the request or receives signal from controlcenter.
What programming languages can be used in the Zelio smart relay?
1. LD mode: Ladder language
2. FBD mode: Function Block Diagram mode
Ladder language (LD) is a graphic language. It can be used to transcribe
relay diagrams, and is suited to combined processing. It provides basic
graphic symbols: contacts, coils, blocks.
FBD mode allows graphic programming based on the use of predefined
function blocks. It offers a large range of basic functions: timer, counter,
logic, etc.
What I/O couplers are available for the relay?
There are 6 kinds of I/O couplers:
1. SR2 10/12 I/O without extension
2. SR2 10/12 I/O without screen without extension
3. SR2 20 I/O without extension
4.
SR2 20 I/O without screen without extension5. SR3 10 I/O with extension
6. SR3 26 I/O with extension
What is the point of the Supervisory display?
A Supervision window is available for Simulation mode and
Monitoring mode. This window offers you the possibility of visualization
the inputs/outputs that you have previously chosen and placed. This allows
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you to see the essential of the program to ensure an efficient tracking.
Drawing functions enable you to illustrate the application.
III. Lab work
So we started working. We found out the mutual connections for four devices.
How do the Zelio I/Os work – that is, how are the Zelio’s binary inputs and
outputs connected to the outside world?
The positive of power supply is connected to the Input terminals in the Smart
relay through the wires. The Output terminals are wired to the right places in theconveyor according to requirement in Zelio program. The conveyor is connected
to the power supply.
How do the input and output statuses shown on the Zelio’s display?
The input and output statuses are shown on the Zelio’s display by the color of the
wires. If it is blue, the statuses are “0”. If they are red, the statuses are “1” means
there is a current flowing through the wires connecting them..
What causes the clicking sound?
When the relay closes or releases the contacts, the sound is caused.
Data communication specifications
The Recipient type menu has three options: Zelio L ogic Alarm, Mobile and
EMail. Select Mobile . What does each of these options mean?
These options allow the programmer to choose which way he wants to receive
the message from the program. He can make a choice between receiving in Zelio Alarm or a message is sent to his Mobile phone or a message in his
email .
Make the appropriate selection under Number of connection attempts. Alsotick Authorized vari able modif ication. Why?
Ticking Authorized variable modification allows the program author to
change the value of variable if he wants.
Control assignments A and B: Conveyor control system
The PROTO conveyor to be controlled is a belt conveyor built for teaching purposes. The conveyor’s operation can be controlled from the ON/OFF switch
(contactor), the direction from the RIGHT/LEFT switch and the speed from the
NORMAL/SLOW switch by shorting the appropriate control switches to 24
VDC voltage.
The figure below shows the Zelio’s display of the whole program.
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Normally, the conveyor runs to the right so we have to give the signal of running
left so that the conveyor runs to the left. If there is no running left input, it will runto the right. In addition, there must be signals the NORMAL and SLOW so that
the conveyor runs in slow speed, then when we no longer give the input to
SLOW, the conveyor will run in normal speed and it can be considered as running
fast.
When the START (Z1) button is pressed, the conveyor starts up immediatelyin slow speed, to the left. As we can see in the below figure, SLOW and LEFT
are both activated. It means the conveyor is running to the left slowly. At the
same time, the timer is active an run for 5 seconds as pressed.
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After 5 seconds the signal in the SLOW output changes to “0”, it means thespeed changes to fast.
If the left proximity switch is activated while the conveyor is moving to the
left, the conveyor’s direction changes to the right. As can be seen from the
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following figure, the Left output is not available, it means the conveyor
changing its direction and running to the right.
If the right proximity switch is activated while the conveyor is moving to theright the conveyor’s direction changes to the left. As in the figure below, theLeft output is active, it means the conveyor altering its direction to the left.
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When the STOP switch is activated, all outputs are disconnected after 2seconds means the conveyor stops with a 2 second delay. As the same time, a
red flashing light comes on for 1 second at 1-second intervals (on 1 s. / off 1
s., etc.). The flashing light goes off when the conveyor starts back up becauseSTART button resets the signal to the LED.
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By using COM function, we can also control the conveyor by Mobile phone.The Com function on the top of the main program figure. The conveyor can
be started by sending a text message to the smart relay’s phone number with
the text !Conveyor=1. The conveyor can be stopped with a text message sentto the same number saying !Conveyor=0. In addition, the system will send a
message says that the conveyor is on. The type of the COM function is“Alarm with variable modification” and it is specified by as below
By using, the COM function on the right of the main program figure we canask whether the direction of the conveyor is left or right by sending the
message: “?LEFT”. If the direction is Left, we received the message “!LEFT =
1”. If the direction is Right, the message will be “!LEFT = 0”. The type of the
function is “Alarm” and it is specified as follow
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Implement a text message alarm if the conveyor reaches the left limit can becreated by the COM function on the left of the main program figure. The type of the function is “Alarm” and written as below
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