SCHNEIDER ELECTRIC SR2B201JD Smart Relay User Manual

Zelio Soft 2
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Zelio Soft 2
Applications Examples Guide
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09/2017
www.schneider-electric.com
The information provided in this documentation contains general descriptions and/or technical
characteristics of the performance of the products contained herein. This documentation is not
intended as a substitute for and is not to be used for determining suitability or reliability of these
products for specific user applications. It is the duty of any such user or integrator to perform the
appropriate and complete risk analysis, evaluation and testing of the products with respect to the
relevant specific application or use thereof. Neither Schneider Electric nor any of its affiliates or
subsidiaries shall be responsible or liable for misuse of the information contained herein. If you
have any suggestions for improvements or amendments or have found errors in this publication,
please notify us.
You agree not to reproduce, other than for your own personal, noncommercial use, all or part of
this document on any medium whatsoever without permission of Schneider Electric, given in
writing. You also agree not to establish any hypertext links to this document or its content.
Schneider Electric does not grant any right or license for the personal and noncommercial use of
the document or its content, except for a non-exclusive license to consult it on an "as is" basis, at
your own risk. All other rights are reserved.
All pertinent state, regional, and local safety regulations must be observed when installing and
using this product. For reasons of safety and to help ensure compliance with documented system
data, only the manufacturer should perform repairs to components.
When devices are used for applications with technical safety requirements, the relevant
instructions must be followed.
Failure to use Schneider Electric software or approved software with our hardware products may
result in injury, harm, or improper operating results.
Failure to observe this information can result in injury or equipment damage.
© 2017 Schneider Electric. All Rights Reserved.
2
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Table of Contents
Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
About the Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running the Example Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2 Applications in Ladder Language . . . . . . . . . . . . . . . . . .
Greenhouse Ventilation Panes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Home Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Gate Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Underground Car Park Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Room Temperature Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Boiler Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3 Applications in FBD Language . . . . . . . . . . . . . . . . . . . .
Greenhouse Ventilation Panes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Home Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Gate Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Room Temperature Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Boiler Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
School Bell. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Central Heating System with PWM Valve . . . . . . . . . . . . . . . . . . . . . .
Central Heating System with Analog Valve . . . . . . . . . . . . . . . . . . . . .
Index
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.........................................
5
9
13
13
15
16
20
22
24
27
30
33
34
40
43
45
48
50
53
56
59
3
4
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Safety Information
Important Information
NOTICE
Read these instructions carefully, and look at the equipment to become familiar with the device
before trying to install, operate, service, or maintain it. The following special messages may appear
throughout this documentation or on the equipment to warn of potential hazards or to call attention
to information that clarifies or simplifies a procedure.
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5
PLEASE NOTE
Electrical equipment should be installed, operated, serviced, and maintained only by qualified
personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of
the use of this material.
A qualified person is one who has skills and knowledge related to the construction and operation
of electrical equipment and its installation, and has received safety training to recognize and avoid
the hazards involved.
BEFORE YOU BEGIN
Do not use this product on machinery lacking effective point-of-operation guarding. Lack of
effective point-of-operation guarding on a machine can result in serious injury to the operator of
that machine.
WARNING
UNGUARDED EQUIPMENT


Do not use this software and related automation equipment on equipment which does not have
point-of-operation protection.
Do not reach into machinery during operation.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
This automation equipment and related software is used to control a variety of industrial processes.
The type or model of automation equipment suitable for each application will vary depending on
factors such as the control function required, degree of protection required, production methods,
unusual conditions, government regulations, etc. In some applications, more than one processor
may be required, as when backup redundancy is needed.
Only you, the user, machine builder or system integrator can be aware of all the conditions and
factors present during setup, operation, and maintenance of the machine and, therefore, can
determine the automation equipment and the related safeties and interlocks which can be properly
used. When selecting automation and control equipment and related software for a particular
application, you should refer to the applicable local and national standards and regulations. The
National Safety Council's Accident Prevention Manual (nationally recognized in the United States
of America) also provides much useful information.
In some applications, such as packaging machinery, additional operator protection such as pointof-operation guarding must be provided. This is necessary if the operator's hands and other parts
of the body are free to enter the pinch points or other hazardous areas and serious injury can occur.
Software products alone cannot protect an operator from injury. For this reason the software
cannot be substituted for or take the place of point-of-operation protection.
Ensure that appropriate safeties and mechanical/electrical interlocks related to point-of-operation
protection have been installed and are operational before placing the equipment into service. All
interlocks and safeties related to point-of-operation protection must be coordinated with the related
automation equipment and software programming.
6
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NOTE: Coordination of safeties and mechanical/electrical interlocks for point-of-operation
protection is outside the scope of the Function Block Library, System User Guide, or other
implementation referenced in this documentation.
START-UP AND TEST
Before using electrical control and automation equipment for regular operation after installation,
the system should be given a start-up test by qualified personnel to verify correct operation of the
equipment. It is important that arrangements for such a check be made and that enough time is
allowed to perform complete and satisfactory testing.
WARNING
EQUIPMENT OPERATION HAZARD



Verify that all installation and set up procedures have been completed.
Before operational tests are performed, remove all blocks or other temporary holding means
used for shipment from all component devices.
Remove tools, meters, and debris from equipment.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
Follow all start-up tests recommended in the equipment documentation. Store all equipment
documentation for future references.
Software testing must be done in both simulated and real environments.
Verify that the completed system is free from all short circuits and temporary grounds that are not
installed according to local regulations (according to the National Electrical Code in the U.S.A, for
instance). If high-potential voltage testing is necessary, follow recommendations in equipment
documentation to prevent accidental equipment damage.
Before energizing equipment:
Remove tools, meters, and debris from equipment.
 Close the equipment enclosure door.
 Remove all temporary grounds from incoming power lines.
 Perform all start-up tests recommended by the manufacturer.

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7
OPERATION AND ADJUSTMENTS
The following precautions are from the NEMA Standards Publication ICS 7.1-1995 (English
version prevails):
 Regardless of the care exercised in the design and manufacture of equipment or in the selection
and ratings of components, there are hazards that can be encountered if such equipment is
improperly operated.
 It is sometimes possible to misadjust the equipment and thus produce unsatisfactory or unsafe
operation. Always use the manufacturer’s instructions as a guide for functional adjustments.
Personnel who have access to these adjustments should be familiar with the equipment
manufacturer’s instructions and the machinery used with the electrical equipment.
 Only those operational adjustments actually required by the operator should be accessible to
the operator. Access to other controls should be restricted to prevent unauthorized changes in
operating characteristics.
8
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About the Book
At a Glance
Document Scope
This document describes a number of example projects for Zelio Logic smart relay in the Ladder
and FBD programming languages.
The examples described in this document are intended for learning purposes only. They must not
be used directly on products that are part of a machine or process.
WARNING
UNINTENDED EQUIPMENT OPERATION
Do not include any wiring information, programming or configuration logic, or parameterization
values from the Examples in your machine or process without thoroughly testing your entire
application.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
This document and its related Zelio Soft 2 project files focus on specific functions and function
blocks provided with Zelio Soft 2, and on specific features available in Zelio Soft 2. They are
intended to help you understand how to develop, test, commission, and integrate applicative
software of your own design in your control systems.
The examples are intended for new Zelio Soft 2 users who already have some degree of expertise
in the design and programming of control systems.
Validity Note
This documentation is valid for Zelio Soft 2 V5.1.
Related Documents
Title of Documentation
Reference Number
Zelio Logic Smart Relay User Manual
EIO0000002690 (ENG)
EIO0000002692 (GER)
EIO0000002691 (FRE)
EIO0000002693 (SPA)
EIO0000002694 (ITA)
EIO0000002695 (POR)
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9
Title of Documentation
Reference Number
Zelio Logic Programming Guide
EIO0000002612 (ENG)
EIO0000002613 (FRE)
EIO0000002614 (GER)
EIO0000002615 (SPA)
EIO0000002616 (ITA)
EIO0000002617 (POR)
You can download these technical publications and other technical information from our website
at http://www.schneider-electric.com/en/download
Product Related Information
WARNING
LOSS OF CONTROL





The designer of any control scheme must consider the potential failure modes of control paths
and, for certain critical control functions, provide a means to achieve a safe state during and
after a path failure. Examples of critical control functions are emergency stop and overtravel
stop, power outage and restart.
Separate or redundant control paths must be provided for critical control functions.
System control paths may include communication links. Consideration must be given to the
implications of unanticipated transmission delays or failures of the link.
Observe all accident prevention regulations and local safety guidelines.1
Each implementation of this equipment must be individually and thoroughly tested for proper
operation before being placed into service.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
1
For additional information, refer to NEMA ICS 1.1 (latest edition), "Safety Guidelines for the
Application, Installation, and Maintenance of Solid State Control" and to NEMA ICS 7.1 (latest
edition), "Safety Standards for Construction and Guide for Selection, Installation and Operation of
Adjustable-Speed Drive Systems" or their equivalent governing your particular location.
WARNING
UNINTENDED EQUIPMENT OPERATION


Only use software approved by Schneider Electric for use with this equipment.
Update your application program every time you change the physical hardware configuration.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
10
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Terminology Derived from Standards
The technical terms, terminology, symbols and the corresponding descriptions in this manual, or
that appear in or on the products themselves, are generally derived from the terms or definitions
of international standards.
In the area of functional safety systems, drives and general automation, this may include, but is not
limited to, terms such as safety, safety function, safe state, fault, fault reset, malfunction, failure,
error, error message, dangerous, etc.
Among others, these standards include:
Standard
Description
EN 61131-2:2007
Programmable controllers, part 2: Equipment requirements and tests.
ISO 13849-1:2008
Safety of machinery: Safety related parts of control systems.
General principles for design.
EN 61496-1:2013
Safety of machinery: Electro-sensitive protective equipment.
Part 1: General requirements and tests.
ISO 12100:2010
Safety of machinery - General principles for design - Risk assessment and risk
reduction
EN 60204-1:2006
Safety of machinery - Electrical equipment of machines - Part 1: General
requirements
EN 1088:2008
ISO 14119:2013
Safety of machinery - Interlocking devices associated with guards - Principles
for design and selection
ISO 13850:2006
Safety of machinery - Emergency stop - Principles for design
EN/IEC 62061:2005
Safety of machinery - Functional safety of safety-related electrical, electronic,
and electronic programmable control systems
IEC 61508-1:2010
Functional safety of electrical/electronic/programmable electronic safetyrelated systems: General requirements.
IEC 61508-2:2010
Functional safety of electrical/electronic/programmable electronic safetyrelated systems: Requirements for electrical/electronic/programmable
electronic safety-related systems.
IEC 61508-3:2010
Functional safety of electrical/electronic/programmable electronic safetyrelated systems: Software requirements.
IEC 61784-3:2008
Digital data communication for measurement and control: Functional safety
field buses.
2006/42/EC
Machinery Directive
2014/30/EU
Electromagnetic Compatibility Directive
2014/35/EU
Low Voltage Directive
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11
In addition, terms used in the present document may tangentially be used as they are derived from
other standards such as:
Standard
Description
IEC 60034 series
Rotating electrical machines
IEC 61800 series
Adjustable speed electrical power drive systems
IEC 61158 series
Digital data communications for measurement and control – Fieldbus for use in
industrial control systems
Finally, the term zone of operation may be used in conjunction with the description of specific
hazards, and is defined as it is for a hazard zone or danger zone in the Machinery Directive
(2006/42/EC) and ISO 12100:2010.
NOTE: The aforementioned standards may or may not apply to the specific products cited in the
present documentation. For more information concerning the individual standards applicable to the
products described herein, see the characteristics tables for those product references.
12
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Zelio Soft 2
Getting Started
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Chapter 1
Getting Started
Getting Started
Running the Example Programs
Locating the Example Programs
The example programs are located in the Zelio Soft 2 installation folder:
Zelio Soft 2\Z2user\examples.
The example programs are:
File name
Description
Ladder language
gestion_serre_ladder.zm2
Greenhouse ventilation pane control (see page 16).
eclairage_habitation_ladder.zm2
Home lighting (see page 20).
Portail_ladder.zm2
Automatic gate control (see page 22).
Parking Souterrain ladder.zm2
Underground car park control (see page 24).
regulation_température_ladder.zm2
Room temperature regulation (see page 27).
Chaudiere_ladder.zm2
Boiler control (see page 30).
FBD language
gestion_serre_fbd.zm2
Greenhouse ventilation pane control (see page 34).
eclairage_habitation_fbd.zm2
eclairage_habitation_fbd_grafcet.zm2
Home lighting (see page 40).
Portail_fbd.zm2
Automatic gate control (see page 43).
regulation_temperature_fbd.zm2
Room temperature regulation (see page 45).
Chaudiere_fbd.zm2
Boiler control (see page 48).
Sonnerie fbd.zm2
School bell (see page 50).
Heating_PWM_fbd.zm2
Central heating system with PWM valve
(see page 53).
Heating_analog_fbd.zm2
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Central heating system with analog valve
(see page 56).
13
Getting Started
Launching an Example in Zelio Soft 2 Programming Software
Step
Action
1
Start the Zelio Soft 2 software.
2
Select Open an existing program.
3
Choose the example program to be launched.
4
Select Simulation mode (1).
5
Execute the program by pressing RUN (2).
Floating pop-ups are available to change and view the input/output status. To display/hide them,
use the icon bar at the bottom of the screen:
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Zelio Soft 2
Applications in Ladder Language
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Chapter 2
Applications in Ladder Language
Applications in Ladder Language
What Is in This Chapter?
This chapter contains the following topics:
Topic
Page
Greenhouse Ventilation Panes
16
Home Lighting
20
Automatic Gate Control
22
Underground Car Park Control
24
Room Temperature Regulation
27
Boiler Control
30
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15
Applications in Ladder Language
Greenhouse Ventilation Panes
Description
This example describes how greenhouse ventilation panes can be managed automatically.
Specifications
The owner of a greenhouse would like to acquire an installation to manage the opening and closing
of the ventilation window panes located on the greenhouse roof.
The greenhouse has two window panes to provide ventilation. The opening of these window panes
is controlled by a motor and 2 sensors that indicate whether the window panes are open or closed:
During the day, the window panes open to ventilate the structure from 12:00 to 15:00, at the time
of day when, in principle, the temperature is the highest. However, if the temperature is less than
10 °C, the window panes do not open, or when they are already open, they close.
In addition, the window panes open during the day when the temperature reaches 25 °C. If the
temperature falls below 25 °C, the window panes must close again.
Finally, at night, the window panes remain closed regardless of the temperature.
Program description, 3 time ranges are used:



16
Range 1: Night, from 21:00 to 07:00
Range 2: Day, from 07:00 to 12:00 and from 15:00 to 21:00
Range 3: Noon, from 12:00 to 15:00
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Applications in Ladder Language
Summary:
Input/Output Table
Description of the inputs:
Input
Description
I1
Window panes open (Discrete)
I2
Window panes closed (Discrete)
IB
Temperature (analog)
Description of the outputs:
Output
Description
Q1
Opening of the window panes (Discrete)
Q2
Closing of the window panes (Discrete)
The temperature is supplied by a sensor with output voltage of 0 to 10 V.
Required Reference
For this application, a smart relay with a clock and analog inputs is required:



SR2B121BD (24 Vdc),
SR2B122BD (24 Vdc),
SR2B121JD (12 Vdc).
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17
Applications in Ladder Language
The LD Wiring Sheet
This figure shows the example with Ladder symbols display:
Description of the Parameters
Daily programmer H1:
Channel C:
The other channels (A, B, D) are not configured.
18
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Applications in Ladder Language
Daily programmer H2:
Channel C:


ON: 07:00 OFF 12:00,
The other parameters are the same as for programmer H1.
Channel D:


ON: 15:00 OFF 21:00,
The other parameters are the same as for programmer H1.
The other channels (A, B) are not configured.
Daily programmer H3:
Channel C:


ON: 12:00 OFF 15:00,
The other parameters are the same as for programmer H1.
The other channels (A, B, D) are not configured.
Analog comparator a1
Analog comparator A2

Reference value: 3 Volts.
The other parameters are the same as for programmer A1.
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19
Applications in Ladder Language
Home Lighting
Specifications
A homeowner would like to install a system capable of controlling the lighting of a stairway and
outdoor entrance providing access to the house.
Program features:

Outdoor lighting: The circuit is activated at night by a twilight switch. A sensor detects any

Indoor lighting: Two pushbuttons are located in the stairwell; one in the entrance and other at
motion and activates the outdoor lighting for 2 minutes.
the top of the stairs. Their function is identical. Time-delayed (2 minutes) lighting is obtained by
pressing one of the buttons.
Input/Output Table
Description of the inputs:
Input
Description
I1
Motion sensor
I2
Twilight switch
I3
Pushbutton
I4
Pushbutton
Description of the outputs:
Output
Description
Q1
Outdoor lighting
Q2
Indoor lighting
Required Reference
For this application, no specific conditions are required.
20
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Applications in Ladder Language
The LD Wiring Sheet
This figure shows the example with Electrical symbols display:
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21
Applications in Ladder Language
Automatic Gate Control
Specifications
A homeowner wants to control access to his residence by an automatic gate equipped with a dual
direction (opening and closing) motor.
Program features:
Opening: Whether the gate is closed or in an intermediate position, the remote control signal
causes the full opening of the gate. During the opening process, any new action on the remote
control stops or restarts the motor.
When the gate is fully open, there is a 4 second time delay before closing can start.
 Closing: During the closing process, if the remote control is activated or if the sensor detects
motion, the gate is opened. As long as the sensor is activated (for example, a vehicle stopped
in the passage way), the gate remains fully open.

Input/Output Table
Description of the inputs:
Input
Description
I1
Remote control
I2
Gate closed position
I3
Gate opened position
I4
Motion sensor
Description of the outputs:
Output
Description
Q1
Gate opening
Q2
Gate closing
Required Reference
For this application, no specific conditions are required.
Advantages of the Application
The feature of being able to stop the gate opening or closing when the remote control signal is
detected is an advantage for this type of application.
22
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Applications in Ladder Language
The LD Wiring Sheet
This figure shows the example with Electrical symbols display:
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23
Applications in Ladder Language
Underground Car Park Control
Specifications
This example completes and centralizes the control of the underground car park of an
administration building.
Program features:




Vehicle entrance/exit control: Access is allowed by an automatic barrier. Users can access the
car park during business hours: Monday to Friday from 8:30 to 17:30, Saturday from 09:30 to
12:00. However, it is possible to manually inhibit the closing of the barrier by pressing Z4
(function restored by pressing Z2), in case of an exceptional event.
Counting: The car park capacity is limited to 93 vehicles. A counter blocks access to the car park
if it is full and controls a light panel indicating Car Park Full. It is also possible to manually
increment or decrement the number of vehicles present in the car park (using Z1 and Z3).
CO2 level: A carbon dioxide (CO2) sensor indicates when the level exceeds the defined limit and
controls the operation of a fan (10 minutes).
Light: The lighting switches on for 2 minutes each time a vehicle enters the car park or whenever
a pedestrian presses the switch.
Input/Output Table
Description of the inputs:
Input
Description
I1
Vehicle entry
I2
Vehicle exit
I3, I4
Pushbuttons at pedestrian access points
IB
Carbon dioxide (CO2) level sensor
Z1
Manually increments the number of vehicles
Z2
Resumes automatic entry control
Z3
Manually decrements the number of vehicles
Z4
Manual release of entry barrier
Description of the outputs:
24
Output
Description
Q1
Indicates when the car park is full.
Q2
Locks the entry barrier
Q3
Lighting
Q4
Fan control
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Applications in Ladder Language
Required Reference
For this example, a clock and analog inputs are required:


SR2B121BD (24 Vdc),
SR2B121JD (12 Vdc).
Advantages of the Application
Full car park control using one smart relay.
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25
Applications in Ladder Language
The LD Wiring Sheet
This figure shows the example with Electrical symbols display:
26
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Applications in Ladder Language
Room Temperature Regulation
Specifications
The ambient temperature of a room is controlled in heating mode by a heater and a fan, and in
cooling mode by a fan only. A heat sensor provides a 0…10 V signal. A switch is used to deactivate
temperature regulation.
Changes of input and output values can be monitored in a supervision window.
Program Description:
 Input I1 = 0: Temperature regulation is off
 Input I1 = 1: Temperature regulation is on
 Input I2 = 0: Cooling mode
 Input I2 = 1: Heating mode
Input/Output Table
Description of the inputs:
Input
Description
I1
On/Off switch
I2
Mode selection
IB
Ambient temperature (analog input)
IC
Setpoint (analog input)
Description of the outputs:
Output
Description
Q1
Heater
Q2
Fan
The temperature is supplied by a sensor with output voltage of 0...10 V.
NOTE: To simulate this program, first adjust the setpoint using analog input IC and then switch on
the temperature regulation (I1 = 1, click on I1). If the cooling mode is selected (I2 = 0), the fan is
activated as soon as the temperature exceeds 3 ºC above the setpoint and will stop when it drops
2 ºC below the setpoint. And conversely for the heating mode.
Required Reference
For this application, Zelio Logic smart relay with analog inputs is required:


SR2B121BD (24 Vdc),
SR2B121JD (12 Vdc).
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27
Applications in Ladder Language
Hysteresis
A
Setpoint
Advantages of the Application
1. Use of 0...10 V analog inputs
2. The supervision window:
28
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Applications in Ladder Language
The LD Wiring Sheet
This figure shows the example with Electrical symbols display:
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29
Applications in Ladder Language
Boiler Control
Specifications
To avoid over-consumption of electricity on boiler start-up, the heating elements are heated
progressively, and stopped progressively when the boiler is stopped.
This operating principle is shown by the following timing diagram:
An On (MA) button authorizes the activation of the first heating element (S1). After a time delay T,
the second element (S2) starts up. After the same time delay, the third element starts up (S3), then
the fourth element (S4) again after time-delay T. An Off (AR) button deactivates S1. The three other
elements are progressively deactivated after time delay T.
Program description:
Inputs: The program includes six TIMER function blocks. The function requires entering the
same time delay value T in the six function blocks.
 As a result, if you modify one of the function blocks, you must enter the new selection in the six
function blocks.

Input/Output Table
Description of the inputs:
30
Input
Description
I1
On button
I2
Off button
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Applications in Ladder Language
Description of the outputs:
Output
Description
Q1
First heating element S1
Q2
Second heating element S2
Q3
Third heating element S3
Q4
Fourth heating element S4
Required Reference
For this example, no specific conditions are required.
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31
Applications in Ladder Language
The LD Wiring Sheet
This figure shows the example with Electrical symbols display:
32
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Zelio Soft 2
Applications in FBD Language
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Chapter 3
Applications in FBD Language
Applications in FBD Language
What Is in This Chapter?
This chapter contains the following topics:
Topic
Page
Greenhouse Ventilation Panes
34
Home Lighting
40
Automatic Gate Control
43
Room Temperature Regulation
45
Boiler Control
48
School Bell
50
Central Heating System with PWM Valve
53
Central Heating System with Analog Valve
56
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Applications in FBD Language
Greenhouse Ventilation Panes
Description
This example describes how greenhouse ventilation panes can be managed automatically.
Specifications
The owner of a greenhouse would like to acquire an installation to manage the opening and closing
of the ventilation window panes located on the greenhouse roof.
The greenhouse has two window panes to provide ventilation. The opening of these window panes
is controlled by a motor and 2 sensors that indicate whether the window panes are open or closed:
During the day, the window panes open to ventilate the structure from 12:00 to 15:00, at the time
of day when, in principle, the temperature is the highest. However, if the temperature is less than
10 °C, the window panes do not open, or when they are already open, they close.
In addition, the window panes open during the day when the temperature reaches 25 °C. If the
temperature falls below 25 °C, the window panes must close again.
Finally, at night, the window panes remain closed regardless of the temperature.
Program description, 3 time ranges are used:



34
Range 1: Night, from 21:00 to 07:00
Range 2: Day, from 07:00 to 12:00 and from 15:00 to 21:00
Range 3: Noon, from 12:00 to 15:00
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Applications in FBD Language
Summary:
Input/Output Table
Description of the inputs:
Input
Description
I1
Window panes open (Discrete)
I2
Window panes closed (Discrete)
IB
Temperature (analog)
Description of the outputs:
Output
Description
Q1
Opening of the window panes (Discrete)
Q2
Closing of the window panes (Discrete)
The temperature is supplied by a sensor with output voltage of 0 to 10 V.
Required Reference
For this application, a smart relay with a clock and analog inputs is required:


SR2B122BD (24 Vdc),
SR2B121JD (12 Vdc).
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Applications in FBD Language
FBD wiring sheet
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Applications in FBD Language
Parameters
Analog comparator B12
Value1 > Value2
Analog comparator B18
Value1 > Value2
Daily programmer B11
Cycle in progress: 00




Hour: 15,
Minute: 00,
OFF is selected,
The other parameters are the same as for ON.
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Applications in FBD Language
Daily programmer B13
Cycle in progress 00




Hour: 07,
Minute: 00,
ON is selected,
The other parameters are the same as for programmer B11.
Cycle in progress 01




Hour: 12,
Minute: 00,
OFF is selected,
The other parameters are the same as for programmer B11.
Cycle in progress 02




Hour: 15,
Minute: 00,
ON is selected,
The other parameters are the same as for programmer B11.
Cycle in progress 03




Hour: 21,
Minute: 00,
OFF is selected,
The other parameters are the same as for programmer B11.
Daily programmer B19
Cycle in progress 00




Hour: 21,
Minute: 00,
ON is selected,
The other parameters are the same as for programmer B11.
Cycle in progress 01




38
Hour: 7,
Minute: 00,
OFF is selected,
The other parameters are the same as for programmer B11.
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Applications in FBD Language
Boolean functions
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Applications in FBD Language
Home Lighting
Specifications
A homeowner would like to install a system capable of controlling the lighting of a stairway and
outdoor entrance providing access to the house.
Program features:

Outdoor lighting: The circuit is activated every year from June 1st to October 1st and at night by

Indoor lighting: Two pushbuttons are located in the stairwell; one in the entrance and other at
a twilight switch. A sensor detects any motion and activates the outdoor lighting for 2 minutes.
the top of the stairs. Their function is identical.
 Time-delayed (30 seconds) lighting is obtained by pressing one of the buttons. The timer can
be inhibited by renewed action on one of the buttons.
 Permanent lighting is activated if one button is pressed for at least 2 seconds. A quick press
stops it.
Program description, programming is possible at two levels:
 Level 1: Program with FBD and logic functions only.
 Level 2: Program with SFC functions in addition to FBD and logic functions.
Input/Output Table
Description of the inputs:
Input
Description
I1
Motion sensor
I2
Twilight switch
I3
Pushbutton
I4
Pushbutton
Description of the outputs:
Output
Description
Q1
Outdoor lighting
Q2
Indoor lighting
Required Reference
For this application, a Zelio Logic smart relay with a clock input is required. For example,
SR2B121BD (24 Vdc).
Advantages of the Application
It is possible to handle the application with sequential functions.
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Applications in FBD Language
FBD Wiring Sheet
This figure shows an example (level 1) in FBD:
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Applications in FBD Language
This figure shows level 2 (SFC/Grafcet) example in FBD:
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Applications in FBD Language
Automatic Gate Control
Specifications
A homeowner wants to control access to his residence by an automatic gate equipped with a dual
direction (opening and closing) motor.
Program features:
Opening: Whether the gate is closed or in an intermediate position, the remote control signal
causes the full opening of the gate. During the opening process, any new action on the remote
control stops or restarts the motor.
When the gate is fully open, there is a 4 second time delay before closing can start.
 Closing: During the closing process, if the remote control is activated or if the sensor detects
motion, the gate is opened. As long as the sensor is activated (for example, a vehicle stopped
in the passage way), the gate remains fully open.

Program description:
 The T1 timer (Timer A/C) is used to switch the motor in the opening direction 0.5 seconds after
the inhibition of closing. This helps avoid short-circuits and mechanical jerks.
 The T2 timer (Timer A/C) fulfills two simultaneous functions:
 The 4 second triggering delay maintains the gate in the open position before beginning the
closing motion.
 The 0.2 second triggering delay allows the activation conditions of the AND logic block output
to be verified.
Input/Output Table
Description of the inputs:
Input
Description
I1
Remote control
I2
Gate closed position
I3
Gate opened position
I4
Motion sensor
Description of the outputs:
Output
Description
Q1
Gate opening
Q2
Gate closing
Required Reference
For this application, no specific conditions are required.
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Applications in FBD Language
Advantages of the Application
The feature of being able to stop the gate opening or closing when the remote control signal is
detected is an advantage for this type of application.
The parallel connection to the motor terminals allows the addition of a light signal indicating any
movement of the gate.
FBD Wiring Sheet
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Applications in FBD Language
Room Temperature Regulation
Specifications
The ambient temperature of a room is controlled in heating mode by a heater and a fan, and in
cooling mode by a fan only. A temperature sensor through a converter provides a 0…10 V signal.
A switch is used to deactivate temperature regulation.
Screen display:
The heating or cooling mode is displayed.
 The ambient temperature and setpoint are displayed.
 A trigger function is provided to set up regulation that takes into account a hysteresis of +2 ºC
from start to stop and –3 ºC from stop to start.

Program description:
Input I1 = 0: Temperature regulation is off.
Display example:


Input I1 = 1: Temperature regulation is on.
Display example:
Input/Output Table
Description of the inputs:
Input
Description
I1
On/Off switch
I2
Mode selection
IB
Ambient temperature (analog input)
IC
Setpoint (analog input)
Description of the outputs:
Output
Description
Q1
Heater
Q4
Fan
The temperature is supplied by a sensor with output voltage of 0...10 V.
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Applications in FBD Language
NOTE: When the smart relay is on, select FBD DISPLAY in the main menu of the front panel to
view the active text blocks on the screen. In a simulation, it is possible to call up the front panel by
selecting 3 Front Panel in the Window menu.
NOTE: It will probably be necessary to wire additional gain functions after inputs IB and IC.
Required Reference
For this application, a Zelio Logic smart relay with analog inputs is required:


SR2B121BD (24 Vdc),
SR2B121JD (12 Vdc).
Hysteresis
A
Setpoint
Advantages of the Application
Use of 0...10 V analog inputs.
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Applications in FBD Language
FBD Wiring Sheet
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Applications in FBD Language
Boiler Control
Specifications
To avoid overconsumption of electricity on boiler start-up, the heating elements are heated
progressively, and stopped progressively when the boiler is stopped.
This operating principle is shown by the following timing diagram:
An On (MA) button authorizes the activation of the first heating element (S1). After a time-delay T,
the second element (S2) starts up. After the same time-delay, the third elements starts up (S3),
then the fourth element (S4) again after time-delay T. An Off (SR) button deactivates (S1). The
three other elements are progressively deactivated after time-delay T.
Program description:
In principle, time delay T is identical for the activation/deactivation of all the heating elements.
The program includes three TIMER A/C function blocks. The function to perform according to
the specifications requires entering the same time-delay value in the three function blocks.
 As a result, if you modify one of the function blocks, you must enter the new selection in the
three TIMER A/C function blocks.

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Applications in FBD Language
Input/Output Table
Description of the inputs:
Input
Description
I1
On button
I2
Off button
Description of the outputs:
Output
Description
Q1
First heating element S1
Q2
Second heating element S2
Q3
Third heating element S3
Q4
Fourth heating element S4
Required Reference
For this example, no specific conditions are required.
FBD Wiring Sheet
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Applications in FBD Language
School Bell
Specifications
A school wants to control both the daily school bell and an alarm system using the same device.
The bell rings according to a programmed schedule from Monday to Friday for one minute, except
during the holidays. The Alarm mode is active during the holidays, on weekends, and at night
Monday to Friday.
The alarm sounds for 1 minute as an audio signal alternating 2 seconds on, 1 second off, and by
an indicator light activated by a motion detector. It must be possible to reset the alarm.
Program description:
To program the three clocks, copy or adapt the parameters of the three figures below.
The logic block unites the activation conditions of the Alarm mode according to the equation:
Input
50
Output
Time 2
I1
I2
Time 3
–
0
1
1
1
1
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Applications in FBD Language
Advantages of the Application
The annual clock, available in FBD, allows school holidays and public holidays to be taken into
account.
Input/Output Table
Description of the inputs:
Input
Description
I1
Alarm: On/Off
I2
Motion detector
I3
Alarm: Reset
Description of the outputs:
Output
Description
Q1
Ringing
Q2
Indicator light
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Applications in FBD Language
Required Reference
For this example, an annual clock is required:


SR2B121BD (24 Vdc),
SR2B121JD (12 Vdc).
FBD Wiring Sheet
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Applications in FBD Language
Central Heating System with PWM Valve
Specifications
A boiler is used to heat the different parts of a house by hot water circulation.
The house temperature is measured by a sensor providing a 0…10 V signal. The desired
temperature is set by the homeowner on the smart relay front panel.
A 2-way valve adjusts the temperature in the room by regulating the flow of hot water coming from
the boiler. The hot water flow is adjusted according to the difference between the desired and the
measured temperatures.
The regulation parameters can be adjusted directly on the smart relay front panel. The access to
these parameters is protected by a key switch to prevent any parameter changes by unauthorized
persons.
Input/Output Table
Description of the inputs:
Input
Description
I1
Key switch
IB
Temperature sensor (0...10 V)
Description of the outputs:
Output
Description
Q1
2-way valve (PWM output)
Required Reference
For this application, as Q1 is used in PWM output, a smart relay with transistor outputs is required:




SR2B122BD (24 Vdc),
SR2B202BD (24 Vdc),
SR3B102BD (24 Vdc),
SR3B262BD (24 Vdc).
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Applications in FBD Language
FBD Wiring Sheet
PID Parameters
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Applications in FBD Language
Set Temperature Display
This figure shows the display where the homeowner can set the desired temperature:
Commissioning Display for Parameters Regulation
This figure shows the display that is protected by a key switch, where the regulation parameters
can be adjusted:
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Applications in FBD Language
Central Heating System with Analog Valve
Specifications
A boiler is used to heat the different parts of a house by hot water circulation.
The house temperature is measured by a Pt100 sensor. The desired temperature is set by the
homeowner on the smart relay front panel.
The temperature in the room is controlled by the variation of temperature of water coming from the
boiler. A 3-way valve is used to control the variation of temperature, by mixing the hot water from
the boiler with cold water from the water supply, using analog control.
The regulation parameters can be adjusted directly on the smart relay front panel. The access to
these parameters is protected by a key switch to prevent any parameter changes by unauthorized
persons.
Input/Output Table
Description of the inputs:
Input
Description
I1
Key switch
IJ
Temperature sensor (Pt100)
Description of the outputs:
Output
Description
QB
3-way valve (Analog output)
Required Reference
For this application, a smart relay with analog extension for the control of the 3-way valve is
required. For example, SR3B101BD (24 Vdc) with SR3XT43BD analog extension.
The Pt100 temperature sensor input is linked to the analog input of the analog extension module.
The PID function output is linked to the analog output of the analog extension module.
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FBD Wiring Sheet
PID Parameters
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Applications in FBD Language
Set Temperature Display
This figure shows the display where the homeowner can set the desired temperature:
Commissioning Display for Parameters Regulation
This figure shows the display that is protected by a key switch, where the regulation parameters
can be adjusted:
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Zelio Soft 2
Index
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Index
E
example of a Ladder application , 16
example of an FBD application, 34
F
FBD application example
automatic gate control, 43
boiler control, 48
central heating system with analog valve,
56
central heating system with PWM valve,
53
greenhouse ventilation panes, 34
home lighting, 40
room temperature regulation, 45
school bell, 50
L
Ladder application example
automatic gate control, 22
boiler control, 30
greenhouse ventilation panes, 16
home lighting, 20
room temperature regulation, 27
underground car park control, 24
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Index
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