Designing of the automation building system 

GENERAL PROVISIONS OF DESIGN

The dispatch system occupies the top place in the unified building automation system and is organized as follows/ Dispatching is organized on the basis of the software package SMDU Symmetre , which is installed on a PC, which is ARMD. This system is a specifically selected group of screens with which the basic principles of dispatching are implemented. Each screen reflects the system associated with it or its element in the form of a mnemonic image that includes information about the state, current processes and provides the ability to control. Screens are systematized and interconnected with navigation buttons.

COMMON VENTILATION PROJECT

Volume of automation

The scope of automation determines such aspects as measurement, control and regulation of technological processes. The basis of the automation system of supply and exhaust ventilation are the control controllers of the company Honeywell. Ventilation systems provide maintenance of the specified microclimate parameters in the serviced premises and are divided according to the technical features and scope of automation:

• Air conditioning systems of supply and exhaust recirculation type: 1) switchboard ЩУ1 - П1-В1, П2-В2, П5-В9, П7-В1; 2) ShchU2 shield - П6-В10, П8-В12.
• Supply air-conditioning systems (“natural” recirculation or without exhaust fan): 1) shield ЩУ1 - П3; 2) ShchU2 shield - P4.
• Exhaust systems: 1) shield ЩУ1 - В3, В6, В7, В13; 2) ShchU2 shield - B8, B14, B15.
• Air-thermal curtains: shield ЩУ1 - 8 air-thermal curtains.

The automatic air conditioning system of the supply and exhaust recirculation type allows you to:

• measurement and regulation of the temperature of the return water of the heat exchanger depending on the outdoor temperature
• measure and control supply air temperature
• measure exhaust air temperature
• control of the state of the electric motors of the fans and the pump according to the MP
• control of the state of the electric motors of the fans by the differential pressure sensor
• control of the fan motor control mode - manual or automatic
• monitoring the condition of the supply air filter
• control of air temperature after the heat exchanger (protection of the heat exchanger from freezing)
• supply fan control
• exhaust fan control
• control of fresh air flaps and recirculation flaps
• control of the coolant circulation pump
• control of the coolant control valve
• control of the coolant control valve (for systems P7 and P8)

Automation exhaust system allows you to:

• Control of the state of the electric motor of the fan in MP
• Control of the condition of the fan electric motor using the differential pressure sensor
• Control of the fan motor control mode
• Exhaust fan control

Automation air-thermal curtain allows you to:

• Control of the fan motor control mode
• Monitoring the condition of the electric motor of the fan and the pump according to MP
• Control of the curtain fan at the time of opening / closing the gate

It is important to note that all the above systems can work. In the manual mode - at the same time switching on / off the fans, turning on / off the pumps is carried out by remote control using the equipment of the boards. This case completely eliminates the aspect of regulation by means of an automation system. In automatic mode - in this case, the control of all units of the system is carried out automatically according to a temporary program by the controller. Fully implemented all aspects of the automation system.

Algorithm work.

The algorithm of the air conditioning system supply and exhaust type

The forced-air and exhaust installation with heat exchangers of heating and cooling (for the P7 and P8 systems) has two seasonal operating modes. Modes of operation are selected by setting one of the two values of the Season Winter / Summer point - Winter / Summer, respectively. The operator performs the transition using the appropriate mimic directly from the control screen. Summer mode. The summer mode is due to the exclusion of the circulation pump and the control valve on the coolant pipe. For systems P7 and P8, regulation of the air supplied to the room is carried out by a valve on the coolant pipe. To start the supply fan P * _FanCmd = On in automatic mode, you need:

• Finding the virtual switch of the work season in the “Summer” position P * _ Season = Summer
• Absence of the “Fire” signal (for each ventilation shield there is its own fire signal) Fire_SHU * = Normal
• Finding the switches of the control modes of the electric motors of the fan and the pump on the panel in the “Auto” position P * _FanPmpAutoSw = Auto
• No alarms of supply fans P * _FanAlm = Normal, P * _Fan Dps Alm = Normal
• No signal "threat of freezing in the air" P * _ FrzSt = Normal
• Finding the point of the time program  P * _Timer in the value “ Day ”.

The reverse condition to any of the above will result in stopping the P * _FanCmd = Off system or inability to start it. To start the exhaust fan V * _FanCmd = On in automatic mode requires:

• Finding the switch of the fan motor control mode on the switchboard in the “Auto” position V * _ FanAutoSw = Auto
• No alarms for supply fans V * _FanAlm = Normal, V * _Fan Dps Alm = Normal
• Operation of the coupled supply fan P * _Fan St = On

The reverse condition to any of the above will result in stopping the exhaust fan V * _FanCmd = Off or inability to start it. For systems P3 and P4, according to the functional design, a control valve in the cooling circuit is provided. This addition in the algorithm is reduced to the fact that in summer mode, in order to maintain the supply air setpoint, the actuator of the control valve begins to work according to the proportional-integral law in order to supply air to the premises at the specified setpoint.

Winter mode

The winter mode is due to the automatic protection of the heat exchanger and the heating circuit against freezing. It is ensured by the constant circulation of the coolant due to the operation of the circulation pump and the heat exchanger control valve, regardless of the state of the fan motor. The valve maintains the return water temperature in the parking mode. When the system is started, a time delay of two minutes is performed to start the fan motor, which is necessary to warm up the heat exchanger. At this time, the valve on the coolant carries out the program of the system soft start according to the following scheme: the setpoint for the air temperature after heating is overestimated to the air temperature in the intake duct + 20 ° С, thereby creating conditions for maximum valve opening. After starting the supply fan, the value of this setpoint is reduced at a speed of 3 ° C per minute, to the specified value. After the soft start is completed, the system enters the air temperature setpoint maintenance mode. The valve on the coolant pipe is completely closed. To start the supply fan P * _FanCmd = On in automatic mode, you need:

• Finding the virtual switch of the work season in the “Winter” position P * _Season = Winter
• No signal "Fire"
• Finding the switch of the fan motor control mode on the shield in the “Auto” position P * _ FanPmpAutoSw = Auto
• No alarms of supply fans P * _FanAlm = Normal, P * _Fan Dps Alm = Normal
• Operation of the circulation pump P * _ PmpSt = On
• No signal "threat of freezing in the air" P * _ FrzSt = Normal
• No alarm "The threat of freezing in the water" P * _ Frz Wat Alm = Normal
• Finding the point of the time program  P * _Timer in the value “ Day ”.

The reverse condition to any of the above will result in stopping the P * _FanCmd = Off system or inability to start it. To start the exhaust fan V * _FanCmd = On in automatic mode requires:

• Finding the switch of the fan motor control mode on the switchboard in the “Auto” position V * _ FanAutoSw = Auto
• No alarms for supply fans V * _FanAlm = Normal, V * _Fan Dps Alm = Normal
• Operation of the coupled supply fan P * _Fan St = On

The reverse condition to any of the above will result in stopping the exhaust fan V * _FanCmd = Off or inability to start it. Mandatory conditions for the start of the circulation pump in automatic mode are:

• Finding the control switches of the pump and fan electric motors on the switchboard in the “Auto” position P * _FanPmpAutoSw = Auto
• No alarm “heating pump failure” P * _PmpAlm = Normal
• Finding the virtual switch of the climatic season P * _Season in the Winter position.

Failure of any of the conditions stops the pump. When all the conditions for a particular climatic season are fulfilled, the intake fan and the exhaust air fan paired with it are started. Outside air dampers are interlocked with magnetic actuators of the fans. They open simultaneously with the start-up of the fans, and when the fans are turned off, they close. In the event of an accident of the intake fan, the command to start the exhaust fan is removed, in the event of an accident in the exhaust fan, the command is not removed from the intake fan. Thus, the intake installation can operate in case of an emergency exhaust, in the event of an accident, the inlet start for the exhaust system is removed. The facility includes 2 types of dampers:

• Open / closed (discrete type) - systems P1-B1, P2-B2, exhaust units.
• Analog-type dampers with an input signal Y = 0..10 V. - all remaining air-supply units.  

At the same time, the “discrete” dampers at the moment of turning on the fan opens completely, and the analog-type dampers depending on the location: outside air - 60% of the opening, and recirculation - 40%. This ratio can be changed with ARMD.

Algorithm of exhaust systems

Consider for example a more detailed system B7. Work exhaust system is not tied to the choice of climate mode. To start the exhaust fan V * _FanCmd = On in automatic mode requires:

• Finding the fan motor control mode switch on the switch in the “Auto” position, V * _ FanAutoSw = Auto
• No exhaust fan alarms, V * _FanAlm = Normal, V * _Fan Dps Alm = Normal
• Finding the point of the time program  V * _Timer in the value “ Day ”.
• Lack of signal "Fire".The reverse condition to any of the above will result in the shutdown of the V * _FanCmd = Off system or the impossibility of its launch. 

Algorithm of air curtains

The work of the VTZ is reduced to turning on the curtain fan when the gate is opened. The facility has 4 gates, each of which is serviced by 2 thermal curtains. Each gate has its own open / close “limit switch”. When 1 gate is opened, 2 twin VTZ are started. The work of the veil is not tied to the choice of climate regime. Also implemented control of the air-thermal group is possible with ARMD in the forced mode (for example, VTZ12_Start = Start to run 1 and 2 curtains). To start the VTZ air-thermal curtain * _ Cmd = On in automatic mode, you need:

• No signal "Fire"
• Finding the control switch of the air curtain motor on the shield in the “Auto” position VTZ * _ Auto = Auto
• No fan   alarm VTZ * _ Alarm = Normal
• Actuation of the gate opening trailer, for example, for the C-axis doors Dver_C = Open

The reverse condition to any of the above will result in the VTZ system stopping * _ Cmd = Off or inability to start it. When the system is forced to start, regardless of the operation of the limit switch, the pair of curtains should start. It is only necessary that all other launch conditions are met:

• No signal "Fire"
• Finding the control switch of the air curtain motor on the shield in the “Auto” position VTZ * _ Auto = Auto
• No fan  alarm VTZ * _ Alarm = Normal
• ssigning the VTZ * _Start value to the Start value - forced mode

Alarms

There are a number of emergencies that can periodically occur during the operation of general ventilation. These accidents can cause damage to equipment and require consistent consideration in order to detect probable causes and eliminate them. MP Failure - occurs if 10 seconds after the command is given to start the equipment or during its operation for 10 seconds there is no response from the magnetic starter. The launch command is removed. Probable reason: the automatic trigger for thermal protection (the “Thermal Protection” lamp on the control panel panel lights up). For example, P1_FanAlm = Alarm is the alarm by MP of the ventilation system P1-B1, the supply fan. Failure of the pressure drop sensor on the fan - occurs if, within 60 seconds after the command to start the fan or during its operation, there is no response from the pressure drop sensor. The launch command is removed. For example, P1_FanDpsAlm = Alarm - a crash on the differential pressure sensor on the inlet fan of the P1-B1 system. The threat of freezing water - occurs when reducing the return temperature of the heat exchanger the coolant is below 12 ° C in winter "season Winter ». The command to start the fan is removed, the control valve opens. For example, P3_FrzWatAlm = Alarm - the threat of freezing by water on the supply system P3. The threat of freezing in the air - occurs when the thermostat triggers - sensor freezing threat. It entails stopping the fan motor regardless of the climate regime. This alarm means that the temperature of the air passing through the capillary tube of the sensor is less than 5 ° C. For example, P6_FrzSt = Alarm - the threat of freezing by air on the intake system P6-B10.

All of the above-mentioned accidents can be reset from SchU by clicking the "Reset" button. Before performing the operation “Reset of accidents” it is strongly recommended to find out and eliminate the cause of the emergency. Fire - formed by fire alarm system. It leads to the removal of the command to start the ventilation systems and the triggering of the fire ventilation start algorithm. In case of its occurrence in the shield, the command voltage to the electric motors of the fans disappears, the command to start them is automatically removed. Work of circulation pumps does not stop. The “Fire” lamp lights up on the control panel. This alarm cannot be reset as it is an external signal. After the disappearance of the signal, the ventilation system will begin to work out according to the program algorithms. A dirty filter is a signal from a differential pressure sensor on the filter, meaning that the filter is dirty. This accident is not critical, it is informative about the contamination of the filter, and the command to start the fan is not removed. Further actions - you need to clean the filter. For example, P1_FilterDps = Alarm — the P1 system filter is dirty. Accepted designations on mnemonic diagrams. Elements of ventilation systems and their automation are presented on mnemonic diagrams as follows. Switch position on the shield 

INDIVIDUAL HEAT ITEM

Volume of automation

The scope of automation determines such aspects as measurement, control and regulation of technological processes. Automation of ITP provides maintenance of the set parameters: temperature and pressure of the heat carrier in the heat distribution system. Provides the following scope of automation:

• Measurement of the temperature of water coming from the city ( TE 1)
• Measurement of the temperature of the water returned to the city ( TE 2)
• Measurement of the temperature of the water entering the central heating circuit ( TE 4)
• Measurement of the temperature of the water returned from the central heating circuit ( TE 5)
• Measurement of the temperature of the water entering the DHW ( TE 7)
• Measurement of the temperature of the water returned from the DHW ( TE 8)
• Measurement of the temperature of the water entering the heat supply circuit of ventilation and the VTZ ( TE 9)
• Measurement of the temperature of the water returned from the heat supply circuit of ventilation and the VTZ ( TE10)
• Measurement of water pressure coming from the city ( PE 1)
• Measurement of water pressure returned to the city ( PE 2)
• Measuring the pressure of water entering the central heating circuit ( PE 4)
• Measurement of water pressure returned from the central heating circuit ( PE 5)
• Measuring the pressure of water entering the DHW ( PE 6)
• Measurement of water pressure returned from hot water supply ( PE 7)
• Measurement of pressure of water entering the heating supply circuit of ventilation and the VTZ ( PE 9)
• Measurement of pressure of water returned from the heat supply circuit of ventilation and the VTZ ( PE 10)
• Control of pressure drop on circulation pumps of the central heating circuit ( M 3, M 4)
• Control of pressure drop at the DHW circulation pumps (M1, M2)
• Control of pressure drop at the circulation pumps of the heating heating circuit and the VTZ (M5, M6)
• Valve control of the central heating system (MB1)
• Control of the DHW valve (MW2)
• Valve control of the heat supply system of ventilation and the VTZ
• Regulation of the temperature of the water entering the DHW
• Regulation of the temperature of the water entering the heat supply circuit of ventilation and the VTZ, depending on the outdoor temperature
• Regulation of the temperature of the water entering the central heating circuit
• Regulation of the temperature of the water returned to the city depending on the temperature of the water coming from the city
• Maintaining pressure in the central heating and ventilation circuits of the VTZ

Algorithm of automation

Automated control system is implemented in such a way that each of the three automated technological systems ITP is activated and operates independently of the others. The automation of the heating system provides for the maintenance of the setpoint of temperature and water pressure in the central heating circuit with a restriction on the return temperature of the city water. The set-point temperature T_RetTmpSet of the return water is calculated depending on the outside air temperature T_OAT (see Figure 2) and the temperature T_SupTmp_Te4 of the incoming city water (see Figure 3), switching is performed by the point T_H_PmpWork. The temperature in the direct central heating pipeline is maintained by the control valve MB1, which changes the amount of city water supplied to the heat exchanger of the central heating system according to the proportional-integral control law with a restriction on the return temperature of the city water. The control valve receives a minimum signal from two PID regulators:

• A regulator with an input signal from the flow temperature sensor to the heating system T_SupTmp_Te4 and an output signal (0 - 100%)
• A regulator with an input signal from the temperature sensor of the return city water T_RetTmp_Tе9 and an output signal (0 - 100%)

Graph of the setpoint of the return water temperature T _ V _ SupTmrSet versus the temperature T _ OAT of the outdoor air. Figure 3 - A graph of the setpoint of the return water temperature T_V_SupTmSet versus the temperature T_SupTmp_Te4 of the incoming water If necessary, the graph can be shifted up or down by a constant value by changing the value of the constant T_V_SupTmpSetAdd.

automatic hot water system.

The temperature in the direct hot water pipeline is maintained by a control valve that changes the amount of city water flowing into the heat exchanger of the hot water supply system according to the proportional-integral control law. The supply water setpoint is fixed at 55 ° С (can be set by the controller), it is also possible to change the setpoint automatically over time (for example: nightly drop in the temperature of the DHW).

automation of the heat supply system for ventilation systems and the VTZ.

The temperature in the supply pipe of the heat supply of ventilation and the VTZ is maintained by a control valve that changes the amount of city water supplied to the heat exchanger of the system according to the proportional-integral control law. The setpoint of the temperature of the water flowing into the circuit T_V_SupTmrSet is calculated according to the schedule, depending on the temperature T_OAT of the outside air (see Figure 4). Graph of the setpoint of the return water temperature T_V_SupTmrSet versus the temperature T_SupTmp_Te9 of the incoming water. If necessary, the graph can be shifted up or down by a constant value by changing the value of the constant T_V_SupTmpSetAdd.

circulating pumps

Pumps of ITP systems operate on a duplex principle, one worker - the second backup. Switching of pumps occurs once a week, on Mondays at 10 am, or according to an accident (dispatcher's command). The mode of operation of the pumps is determined by the state of the switches on the power board or selected by the dispatcher:

• the pumps do not work (both switches are not in the “Auto” position)
• the 1st pump is working (the 1st pump switch is in the “Auto” position)
• the 2nd pump is working (the 2nd pump switch is in the “Auto” position)
• duplex mode (both switches are in the “Auto” position)

The permission to operate the pumps (ventilation and VTZ; DHW; central heating) is to switch the corresponding starting point to On.

Alarms

MP Failure - occurs if after 20 seconds after giving the command to start the equipment or during its operation for 20 seconds there is no response from the magnetic starter. The launch command is removed, an alarm message appears on the CA screen. Probable cause: shutdown of the thermal protection circuit breaker (the “Thermal protection” lamp on the control panel will light up). Pressure alarm - occurs if, within 60 seconds after the command to start the pump or during its operation, there is no response from the differential pressure sensor. Make-up failure - occurs if, within 10 minutes after starting the pump and opening the make-up valve, the pressure in the circuit does not reach the required value. Before performing the operation “Reset of accidents” it is strongly recommended to find out and eliminate the cause of the emergency.

Scope of automation

The automation project for the “fire ventilation” section includes smoke removal fans (DU1, DU2) and air overpressure (PD1, PD3, PD2), smoke exhaust valve and overpressure with electric drives and OZK of ventilation systems. A necessary and indispensable condition for working out the algorithms for this section is the presence of an external Fire signal. In each of the ShchPV, ShchUn and ShchU shields, a “Fire” signal arrives. Automatics provides for scheduling of the fans, the " Auto " mode of the fans, the valve opening signals and their location in the " Auto " mode . The control of valves and fans is carried out in manual or automatic modes of the ballast control gear of the GCS shield. Manual mode is intended for commissioning and equipment testing. Automatic assumes - starting the fans and practicing the valves when the “Fire” signal appears. Algorithm “Fire”: when the “Fire” signal appears, the electric motors of the general ventilation fans stop, the OZK valves close, the electric motors of the fire-fighting fans are started and the overpressure and smoke removal valves open. Control gear and automation elements are located in boards ShchPV 1 and ShchPV 2. ShchPV 1 shield controls the fans DU1, DU2, PD1 and PD3, fire dampers and OZK. ShchPV 2 shield - PD2 fan, fire dampers and OZK.

FIRE PUMPS

Scope of automation

Under this section, the automation project covers 2 groups of pumps:

• pump group ABK.
• pumping group storage facilities.
• dispatch stations pressure increase.
• fire damper.
• monitoring the water pressure in the circuits of the pumps.

Control gear and automation elements are located in the control panel of the control center, which is located in the premises of the substation. Pump operation is tied to an external fire alarm (FIRE = Alarm ). For commissioning and equipment testing, a forced start mode is provided, for each pumping group its own. Forced start mode can be implemented only from ARMD or operator panel. There are 2 pressure boosting stations installed in the facility, in the ABA circuit and in storage facilities. These stations have their own automation. We have only monitored the general average and the status of the station. To monitor the water pressure on the pipes installed 7 sensors. Fire damper signals:

• commands to open, close and stop
• status of work, opening and closing and the state of "jammed valve".

In the working position, the valve is in the closed state. Upon signaling, the fire valve opens, the pumps of the pump groups start to run. Work, fan crashes, valve conditions can be monitored and the alarm can be reset on the panel of the panel using appropriate lights.

The algorithm of the pumps

In the automatic mode, when the switches of the pump group of work modes are set to the “Auto” position, when the “fire” signal is given, the program starts to generate a signal to start 1 pump. When the launch conditions are met, this pump runs until 10 am the next day. After a team is formed to start 2 pumps. If the conditions for starting 2 of the pump are not fulfilled, the accident of this pump is formed, and switching to starting 1 of the pump takes place. Switching from a working pump to a backup one occurs at an accident or every day at 10 am. The operation mode of the pumps is determined by the state of the “Manual / Automatic” switches on the SchuN panel:

• the pumps do not work (both switches are not in the “Auto” position)
• the 1st pump is working (the 1st pump switch is in the “Auto” position, and 2 is in the “Manual” or “0” position)
• the 2nd pump is working (the 2nd pump switch is in the “Auto”, ”position, and 1 is in the“ Manual ”or“ 0 ”position)
• duplex mode (both switches are in the “Auto” position)

MP Failure - occurs if 10 seconds after the command is given to start the equipment or during its operation for 10 seconds there is no response from the magnetic starter. The launch command is removed. For example, ABK_Pmp1Alm = Alarm is a fault in MP 1 of the ABA circuit pump, SKL_Pmp2Alm = Alarm is a fault in MP 2 of the pump of the warehouse circuit. Pump start conditions:

• fire alarm (FIRE = Alarm ) or a forced start signal;
• no accidents;
• finding the appropriate mode switch in the “Auto” position.

TIME PROGRAM

The time program is the time algorithm for the operation of the systems defined by the programmer or the operating engineer. It is used to automatically establish the state of a point at a certain time with an accuracy of minutes - a time point. The schedule of changes in the state of time points of the controller occurs in the following order:

• Daily schedule
• Weekly schedule

The schedule for the day is formed by setting the change in the state of the time point at a specific time of day ( Day / Night ). For example, the point P2_Timer is the time point for the P2 air conditioning system. In the temporary program, for this point, the work period is recorded - Day , and the stop period - Night . Both of these periods are recorded under one common name, Week . Each day of the week is assigned an appropriate daily schedule of the Week . As for the change of the time program, the algorithm of the change will be discussed below. This algorithm will be feasible when ARMD is implemented at the facility. At the moment, all systems are programmed to work around the clock, without switching during the day. I would like to note that the operation of changing the temporary program should be carried out by a representative of the operating company with the authority vested in it. Any point, including a temporary one, is a point of any controller. In order to change the time algorithm, you need to know to which controller the point is tied. To do this, we need to familiarize ourselves with the project, where it is indicated which system is controlled by the corresponding controller. The designation of the controller in the program corresponds to its location in the shield.

• CP1_SHU1– CP 1 controller in SchU1 switchboard
• P2_SHU2– CP 2 controller in the switchboard SHU2

To select the appropriate controller, click 2 times with the left mouse button on the tab. This tab can sometimes be colored blue. From the list of controllers we select the controller of interest to us and click on it. The controller menu appears (figure 5.1). Select the Maitenance tab . In the menu that appears, click on the Time Programs button (Figure 5.2). The menu of the time program of the required controller appears, click the View / Modify button (Figure 5.3). A detailed description of the time program of the controller appears in the appeared window (Figure 5.4). It can be seen that each day of the week is assigned a mode ( Week ). By selecting the time mode, you can change the daily schedule for this mode by clicking on the View / Modifybutton , the daily schedule goes out. Daily schedule:

• Time - response time
• Point Name - time point
• Value / State - the value of the time point is Day or Night
• Day - start time
• Night - stop time

The example shown in figure 5.5 shows that at 10:20 the value of the point Point becomes Day , at 23:00 - Night. Thus, the interval from 10:20 to 23:00 is the period of work. In this menu, you can change the time and state of time points by selecting the desired point. Do not forget to click Modify to make any changes. It will be possible to adjust the temporal parameters after the organization of a full-fledged ARMD.

LIGHTING

According to the project of automation and the project “EOM”, 2 lighting automation control panels (SchDO1 and SchDO3) and power shields with control gear, respectively, are provided. Automation units are located in automation panels. Signals on the section of lighting, divided by shields: ShchDO1 shield - controls 5 lines of lighting in the warehouse sector and the funnel heating shield:

• work status (state MP) lighting lines;
• state of MP funnel heating shield;
• commands to turn on the lighting lines;
• command to activate the heating funnels.

ShchDO3 shield - controls the lighting groups of 4 power shields located in the switchboard on the floors and the funnel heating shield:

• The status of the inclusion of lighting groups (MP groups) 4 power shields;
• Commands to turn on groups of 4 power shields;
•  team and the status of the work MP heating funnels.

When the operating mode switches in power shields are in the “Automatic” position and the signal to turn on the lighting is turned on, the lighting group of the whole shield is activated if it is controlled by SchDO3, or one lighting line (control in SchDO1). When the switch is in the “Manual” mode, the automatics drops out of the lighting control. Mandatory conditions for the inclusion of lighting are: Finding the operation mode switch in the power panel in the “Automatic” position. Forming a launch command in accordance with the time program. At the moment, all teams are in round-the-clock mode. Each command (for example, SHDO1_Cmd1 is the 1st command to turn on 1 line of the ShDO1 shield) according to the lighting is set to “ On ”, which corresponds to the “On” signal. Thus, it is possible to influence the work of the automation by the lighting section only with the operating mode switch on the power shield panel. On the switchboard SHDO1 1, the light-on command controls the paired line in 2 power shields. According to the EOM project, 2 power shields jointly manage 9 lines of illumination of the warehouse sector. Of these 9 lines, 5 were brought into the lighting automation section. And each of these 5 lines in 2 power shields is controlled by 1 team. For a successful understanding of this point, it is desirable to study the project of automation on the section of lighting.