UM0272 STMICROELECTRONICS | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 40
Technical content
Datasheet sections
- 1 System features
- 1.1 System description
- 1.2 Getting started
- 2 System parameters
- 2.1 Introduction
- 2.2 Zones
- 2.3 Outputs
- 2.4 Partitions
- 2.5 Log events
- 2.6 Options
- 3 System hardware configuration
- 3.1 Introduction
- 3.2 Sensor connections
- 3.3 Control module connections
- 3.4 Power supply connections
- 3.5 Central unit connections
- 3.6 Output connections
- 3.7 Tamper line
- 4 Configuring system parameters
- 4.1 Introduction
- 4.2 Configuration using the PC GUI
- 4.3 Configuration using the Control Module
- 4.4 Password protection
- 4.5 Access levels
- 4.5.1 User level
- 4.5.2 Service and owner levels (S/O-L)
- 5 Menus
- 5.1 Using the key pad
Central Unit for Alarm System (CUAS) Evaluation Board Introduction The Central Unit for Alarm System (CUAS) Evaluation Board provides a complete reference system addressing the low- to middle-end security sectors. The tool is ready, from hardware and software point of view, for the development of a complete alarm platform based on a bus network. Thanks to a PC graphical user interface (GUI), it is also possible to easily set up all control parameters (in addition to a control/programming panel connected through the bus). The entire system consists of four boards: Central Unit (CU) board, Control Module (CM) board, Power Supply (PS) board and the PC interface board. There is also PC GUI software that enables the user to easily configure all CU parameters and to execute certain system tests. It is possible to expand the system by means of input/output expansion boards, a GSM board (a connector is available on the CU Board) for managing the CU using a cell phone and other modules using radio-frequency identification (RFID), smartcard or keyboard devices connected through the bus.
1 System features
- 8 Configurable hard-wired inputs with programmable balance control
- 7 Configurable hard-wired outputs that can be associated to each input (4 SSR, 2 transistorized, 1 relay)
- Alarm-on and CU-active output indicators
- 16 configurable partitions for inputs/outputs
- Inputs and outputs expandable with the I/O Expander modules connected to the bus
- Balanced and programmable Tamper line (not yet managed by firmware)
- Programmable Fire/Smoke sensor inputs
- Mains loss and low battery indicators (not yet managed by firmware)
- Test mode for inputs/outputs
- Timer events for inputs/outputs
- Date and Time stamp for up to 999 log events
- Up to 8 users with programmable access code for all partition combinations
- Encrypted Communication Bus for I/O expansion and system management
- Three-level password access control
- Protected Bus Installation and Setup mode for additional security
- PC interface connected directly via the communication Bus with a user-friendly GUI
1.1 System description
An Alarm System consists of a Central Unit (CU) that manages a certain number of inputs (typically connected to sensors and detectors, called zones), outputs (connected devices such as sirens, indicators, etc.) and other devices (i.e. RFID keys, Smartcards, Expansion Modules, GSM, Keyboards, RF module, etc.) connected to the communication bus for system management and configuration as shown in Figure 1. The system is controlled using up to 8 Control Modules that regulate system installation, parameter configuration and switching on/off the CU and partitions. Each zone of an alarm system can be configured, logically regrouped, separately processed and associated to a group of outputs in a different way. The outputs are also configurable in terms of timing, working mode and normal status (High or Low). This CU is composed of 8 zones directly hard-wired to the CU board. It is possible to expand the number of zones by connecting one or more I/O Expansion modules through the bus. Seven hardwired outputs are available:
- Four outputs are separately driven by a solid state relay (SSR - VN340SP) and can deliver up to 1A for each output. These outputs are normally used for connecting sirens and other external devices (auxiliary outputs).
- Two outputs are transistorized and typically used for indicating the system status (alarm condition, CU status, etc.).
- One output is a micro relay for general purpose uses such as connecting a video recorder, external GSM, etc.
setup time, wiring and the wiring costs. Figure 1. System overview
1.2 Getting started
In order to correctly operate your alarm system using the CUAS Evaluation Board, follow the steps listed below. (Refer to Figure 2, Figure 3, Figure 4 and Figure 5.) 1. Connect the Power Supply board to the power supply connector on the Central Unit (J2). 2. Connect the Control Module board to the Bus connector on the CU (CM BUS - J6) using connector J11 or J13. (Ensure that the keyboard is connected to connector J16). 3. Connect the PC interface board to the Bus by the connector J36 either on the connector COMM BUS J5 of the CU or the connectors J13 or J14 of the CM. 4. Connect the PC interface board to the PC serial port through an RS-232 serial connector (not a null-modem). 5. Connect the mains power to Mains connector on the Power Supply board. 6. Power the PS with the mains. 7. Connect the battery on the Power Supply board. 8. Push the Initial Setting push button for at least 5 seconds. After a brief delay, the CM screen will display the date, time and CU status. Note: Perform Steps 3 and 4 only if a PC is required. The following figures show the block diagrams of the CU, CM, PC Interface and the Power Supply boards.
Figure 2. Central unit board layout
2 System parameters
2.1 Introduction
System parameters can be configured by using either the Control Module or the PC Interface. Using the PC interface provides the advantage of using a user-friendly graphic interface (GUI) to configure the system parameters off-line. Once the system is configured on its own PC, it is possible to download information to the CU. For safety reasons and in order to avoid any tampering from a different installer, a system installation code is required before entering Parameter Setting mode on the CU.
2.2 Zones
Each zone is balanced, meaning that the CU detects any resistance variations on the input line. A certain resistance value is assigned during the installation and when an imbalance is detected, it is considered as an infraction and processed. In each zone, a resistor can be placed between each zone terminal (i.e. J20 to J24 for the hard-wired zones). In this case, the value of each resistor can be decided by the installer and it is not necessary to set the same value for each zone. Using this feature ensures that any additional resistance values coming from the wiring do not affect system performance. Each zone can be included or excluded from the control flow (i.e. if a sensor is broken the zone in which it is connected can be temporary excluded), and the working mode can be set either as normally closed (NC or balanced) or normally opened (NO or unbalanced). The zone status variation is immediately stored by the CU when detected, but it is processed only once the delay time associated to the zone is elapsed (if any delay is set). Each zone can be logically associated to all the others in OR (as default) or in AND modes. In AND mode, status variations are detected and processed by the CU only if all the zones in AND mode have their status changed too. Each zone can be in AND mode with another zone, but the vice versa is not mandatory. For example, Zone 4 can be in AND mode with Zone 5 (Zone 4 is now seen as Group 4), but Zone 5 is not in AND mode with Zone 4 (Zone 5 is associated to Zone 4 in OR mode). Each zone is protected against negative voltage, over voltage and ESD.
2.3 Outputs
Each output behavior can be configured as “change status” (ON for a certain time followed by an OFF period or vice versa) or “toggle status” (each time an alarm condition occurs, the output status is toggled). One or more outputs can be associated to each zone and can be enabled or disabled from the system. The default level of each output can be configured as high or low. Four outputs are SSR outputs that can supply up to 1A (internally limited) depending on the power supply capacity (connectors J25/J26, J27/J28, J29 and J30). Typically such outputs are dedicated to sirens (self-powered and internal) and for other devices that require power (connectors AUX1 and AUX2). Two outputs (J32) are transistorized general purpose outputs that can be configured for signaling alarm conditions or the CU status.
The last output is a micro relay with the NC, C and NO clean contacts available. The maximum voltage and current applicable to the contacts is 0.4A @ 125VAC and 2A @ 30VDC for resistive load and 0.2A @ 125VAC and 1A @ 30VDC for inductive load.
2.4 Partitions
A partition is a logical group of zones with an assigned name and behavior that can be activated or deactivated by an activation device existing on the system (i.e. keyboard, smartcard, etc.). On each partition, it is possible to associate two or more zones present on the system; a single zone may belong to several different partitions. Zones are associated as inputs or outputs:
- An input association means that when the partition is deactivated by a device (i.e. by a smartcard when entering a protected area) ONL Y all the zones associated to the Input will be excluded by the control flow. If any of the zones not associated to the deactivated partition is forced, an alarm condition will be detected and processed.
- An output association means that ONL Y the associated zones will be controlled by the CU once the system is activated by a device. Each partition can be associated to one or more user codes and vice versa. Each time a user enters his code, all the partitions associated to that code can be enabled or disabled even individually.
2.5 Log events
The CU automatically records a certain number of events in the internal E2 memory once they occur. The event log feature enables the owner or the installer (not the users) to view the event history using the appropriate menu feature (or, these events can be downloaded through the PC interface and analyzed). The system can record up to 999 events. If more events occur, the oldest ones are automatically replaced by the newest.
2.6 Options
During the installation it is possible to enter Test mode. Test mode enables the installer to test (by watching the signal level associated to the selected zone) zones installed on the system individually or all together once all the sensors are wired on the CU and the zone balanced. The CU automatically stores the balance values after the command is properly sent by the installer to the CU. In Output Test mode, it is possible to toggle each output level each time the installer presses a key (or when the appropriate command is sent to the CU using the PC GUI). In this way, it is possible to test each device connected to the outputs. A Module Acquisition feature is available from the Option menu. This feature enables the installer to update the communication bus module address table; adding new modules and removing any deleted modules on the system. Once the update is started, the CU starts scanning for modules and stores all the modules that acknowledge the CU interrogation. Of course, this feature is available only at the service level. Once an owner or service password is entered, it is possible to enter the system status menu to display the actual status of each zone and output.
3 System hardware configuration
3.1 Introduction
powerful system using bus modules to expand the features. zones in common; it all depends on how the CU is configured. the partitions, or perform several actions on the outputs remotely. (sirens, external devices, etc.), the activation time, working mode, etc.
3.2 Sensor connections
efficient balance control of the tamper line than when placing only one resistor. Figure 6. Sensor wiring diagram
3.3 Control module connections
It is possible to connect up to 8 CMs on the bus line in different ways as shown in Figure 7. Figure 7. Control module connections
3.4 Power supply connections
Connect the power supply cable to jumper J2 of the CU.
3.5 Central unit connections
Table 1 describes all the CU main board connectors.
3.6 Output connections
Table 1. CU connectors J29 AUX 1 SSR Output. Can be used for sirens or other devices. J30 AUX 2 SSR Output. Can be used for sirens or other devices. J35 EXT. WDT EN. Not used in this version.
correspondence between the output number and the board layout label. Figure 8. Siren connection devices and are fully programmable. include one more option allowing to configure the STS output as a CU status output. current software version does not manage the alarm and CU status signaling. Figure 9. Status/alarm connector
3.7 Tamper line
This option is not implemented in this version.
4 Configuring system parameters
4.1 Introduction
- using the PC GUI
- using the Control Module The system is configured by entering Setup mode; this is possible only if the Central Unit (CU) is in Idle mode (CU disabled). During the first installation or each time a new module is installed or removed from the system, the connected modules must be registered in the CU memory. When using the PC GUI, the software automatically registers connected modules in the CU memory. When using the Control Module, follow the instructions provided in Section 4.3: Configuration using the Control Module.
4.2 Configuration using the PC GUI
This feature is not implemented in this version.
4.3 Configuration using the Control Module
status (OFF) as shown in Figure 10. Figure 10. Central unit connected message settings (except for the system date and time).
function in a different context. Figure 11. Control module keypad
4.4 Password protection
passwords. All the User passwords must be different. Table 2. Password protection for each access level association, etc.). The CU cannot be enabled or disabled when accessing this level.
4.5 Access levels
Three access levels are available: Service, Owner and User as described in Table 2. The CM only displays certain menus for each access level. Note: The CU automatically recognizes the access level by the password.
4.5.1 User level
After entering a User password, the CM displays the User menus as shown in Figure 12. User access rights (Control Module on page 33). Figure 12. User level menus
4.5.2 Service and owner levels (S/O-L)
can be changed through the Setup menu (see Section 5.6.5: Access code). available by pressing the correspondent menu number. Table 3. Menus available by access level
- Certain limitations apply. See Section 5.6: Setup on page 24.
Figure 13. Service / owner level menus In order to return to the previous menu, press EXIT (in any menu).
5 Menus
5.1 Using the key pad
to return to the Setup menu, or press ENT again to modify the parameter setting. without entering each time the line number. each associated character is scrolled. Figure 14. Text entry required character is displayed. character. Press ENT again to save the description.
5.2 System Enable/Disable
Enable/Disable menu. Use this menu to enable or disable the alarm system.
5.3 Partition Enable/Select
partitions associated to the user’s access code are available).
to a cross and vice versa). Press to display the next group of partitions (if available). Figure 15. Partition selection Press EXIT to validate the partition selection values.
5.4 System status
Zone 0 is as shown in the example in Figure 16. Figure 16. System status menu first 11 characters of the description. number and then press ENT again.
5.5 Log event
new events overwrite the oldest events.
flag value (for the events that can have the same description but a different status). Figure 17. Log event menu
5.6 Setup
menus, press or directly enter the sub-menu number. Press EXIT to return to the previous menu. Note: Setup mode is available only wh en the CU is in Idle mode (disabled). Figure 18. Setup menu
5.6.1 Zones
The Zones sub-menu enables the service provider or owner to modify zone parameters. zone number to display the zone options. Figure 19 shows the Zone option sub-menus.
Figure 19. Zone setting menus
Description
The Zone description is 16 characters long and is displayed on the System Status (Section 5.4: System status) and Log Event (see Section 5.5: Log event) menus. This displays a more significant name rather than a number. To change the description, press ENT, enter the new text and press ENT again to store the new description. Status The Status sub-menu adds or removes the selected zone from the control flow. Once disabled, the zone is no longer under control, even if included in an enabled partition. This option is used for disabling the zone if it is not used, if a sensor connected on it is broken (waiting for a replacement) or to temporarily disable the zone without losing any settings. Press ENT to switch between the two possible values (enabled/disabled). Input time The input time is delay between the detection of an alarm condition and the triggering of the associated outputs. Normally this time is assigned to zones that protect the area (and the
path) where the CU insertion device (keyboard, smartcard device, etc.) is installed. The alarm condition is immediately stored, but is processed only once the input time is elapsed. To change the input time, press ENT; the minutes will be changed first and the seconds immediately after. Press ENT to store the new values. If the input time is set to 0 minutes and 0 seconds, the zone will be considered as instantaneous in input. The input time can be set from 00:00 to 59:59 (mm:ss). Output time As with the input time, it is possible to associate an output time in order to allow authorized personnel to leave the protected area once enabled the CU. The time is set as described in Input time. Working mode The Working mode indicates the way the CU detects an alarm condition. The following Working mode values are possible:
- Normally opened: The zone is normally unbalanced from its stored value (see Outputs Test on page 32). Once the zone is balanced, the CU processes the alarm condition (after an input or output time, if set).
- Normally closed: The zone is normally balanced and an alarm is processed when an unbalanced state is detected.
- Change: This is a mixed working mode where the CU process an alarm condition each time a different value from the previous one is detected (unbalanced if the zone is balanced and vice versa). Once the alarm is processed, the CU considers the new zone status as the normal one. Press ENT to switch between the different working modes.
- Beeper signal: This feature triggers a buzzer when an installed control module detects an alarm condition in the zone. Press ENT to switch between enabled/disabled. (Not included in this version.)
- Filter: The zone filter enables the CU to detect an alarm condition only after a certain time (the counter is reset once the filter time is elapsed). As shown in Figure 20, press ENT to first modify the number of pulses (zone value changes), up to 999 pulses can be programmed, and the time within which the pulses must occur (mmss). (Not included in this version.) Note: The Working mode for inputs is always normally closed. The option for changing the Working mode is already implemented but has no effect in this release.
Figure 20. Zone filter menu
- Outp. associated: This function associates one of the installed outputs to the selected zone. Once the zone alarm condition is processed, the corresponding outputs are triggered. Press ENT to display the output associated menu (Figure 21) and the first 8 outputs hardwired on the CU. If more outputs are present on the system by means of one or more IO Expanders, press to display the next group of 8 outputs. Press to scroll through each displayed output. In order to associate the pointed output, press ENT. The symbol displayed after the output number will change from a dot (.) to a plus sign (+). See Chapter 5.6.2 for possible output configurations.
Figure 21. Output associated menu
- AND association: This feature allows the installer to logically regroup the selected zone to one or more of the other zones installed on the system. If a zone is in AND mode with another zone, the CU will detect an alarm condition only if all the other zones associated in AND mode detect an alarm condition also. This feature can be useful, for example, in a corridor where two sensors are installed; the alarm condition is processed only if an infraction is detected in one direction but not the other. The AND association menu is similar to the output association menu.
5.6.2 Outputs
CU and those installed by means of the IO Expander present on the system (if installed).
Figure 22. Output settings menus The Output description is 16 characters long and is displayed on the System Status (Section 5.4: System status) and Log Event (see Section 5.5: Log event) menus. This displays a more significant name rather than a number. To change the description, press ENT, enter the new text and press ENT again to store the new description. Status The Status sub-menu adds or removes the selected output from the control flow. Once disabled, the output will not be activated by the CU even if associated to a zone where an alarm condition is detected. This option is used for disabling the output if it is not used, if a sensor connected on it is broken (waiting for a replacement) or to temporarily disable the output without losing any settings. Press ENT to switch between the two possible values (enabled/disabled). Working mode The Working mode indicates the way the output is managed once enabled and associated to a zone. The possible working mode values are the following:
- Change Status: The CU changes the output value during an alarm condition and restores the previous value once the time associated to the output is elapsed.
- Toggle: The CU toggles the output value each time it detects an alarm condition. In order to switch between the different working modes, press ENT.
- Default Level: The default level can be normally high (the SSR outputs and the transistorized outputs are at 12 VDC level, the Relay will close the contacts between the C and NA terminals, the Buzzer is normally activated) or normally low (the opposite
will immediately change its value.
- Timing: The output time is the time that the output remains active (the active status depends on the default level setting) when the CU processes an alarm condition. Press ENT to display the menu shown in Figure 23. Press ENT again and the cursor will underline the hour field. Press ENT again to save the Hour value and pass to the minutes field, and finally to the seconds field. The maximum time allowed is 11h 59m 59s.
Figure 23. Output timing menu
5.6.3 Partitions
detected) by the CU when leaving the protected area. Figure 24. Partition menus
The Partitions description is 16 characters long and is displayed on the Log Event (see Section 5.5: Log event) menus. This displays a more significant name rather than a number. To change the description, press ENT, enter the new text and press ENT again to store the new description. Input The Input sub-menu associates the selected partition to one or more zones installed on the system. Press ENT to display the association menu (Figure 25) and the first 8 zones hardwired on the CU. If more zones are present on the system by means of one or more IO Expander, press to display the next group of 8 zones. Press to scroll through each displayed zone. To associate the partition to selected zone, press ENT. The symbol displayed after the zone number will change from a dot (.) to a plus sign (+). Output Similar to the Input sub-menu, this sub-menu associates partitions and zones that will be monitored once the selected partition is activated. Figure 25. Input and output association menu
5.6.4 Installation code
for the CU and the CM) for the installation code is 00000000. for more information about changing the installation code for Control Modules. Figure 26. Installation code menu
must have previously been entered.
5.6.5 Access code
The access code is required to enter the CU Setup mode.
- If an Owner (access level) password is entered, the menu shows the current code. Press ENT to enter the new code.
- If a Service (access level) password is entered, the menu shows the current code. Press ENT to enter the new code. Press ENT to define the code as the Service or Owner code. Both the owner and the service codes can be modified at this access level. After having entered the new code, press ENT to save the new code. At the prompt, press the 7 key to confirm the new code.
5.6.6 Options
available (Figure 27). Press the corresponding number to enter the selected sub-menu. Figure 27. Option menus resistors are installed, press the 1 key to store the all the balance resistor values in the CU. alarm condition and is processed by the CU.
- single zone test that displays the signal level of the selected zone (depending on the value of the installed resistors)
- a multiple zone test that displays the status (balanced/unbalanced) of groups of 8 zones (see Figure 28). Press to scroll to the next group of 8 zones (if installed on the system). A dot (.) indicates a balanced zone, while a plus sign (+) indicates an unbalanced zone.
Figure 28. Zones testing scanning the bus. Each module that responds to the CU is stored into the CU modules table.
5.6.7 Timer events
This option is not yet implemented.
5.6.8 Date and time
correct value and then press ENT in order to modify the day, year, hours and minutes.
Figure 29. System date and time
5.6.9 Bus modules
described in Modules Acquisition on page 32. Note: This procedure can only be executed once all the modules are wired on the bus line. Figure 30. Bus modules menu
- Address: This is the CM address set by the procedure described in Section 5.7: CM Setup. In this sub-menu, the Address menu is read-only.
- Description: This is the CM description (16 characters long). Press ENT to modify the description.
- User management: Each CM is also a CU ON/OFF device used to activate or deactivate the unit using a password from a given user.
5.6.10 Central Unit
5.7 CM Setup
Figure 35. Control module setup menu default), otherwise the setup procedure is impossible (see Section 5.6.4: Installation code).
6 Electrical characteristics
Table 4. Electrical characteristics
- Depends on power supply version.
- Clean contacts (from the relay): 0.4A @ 125VAC and 2A @ 30VDC for resistive load and 0.2A @ 125VAC
and 1A @ 30VDC for inductive load.
Table 5. List of available characters
0 A B C 0 a b c
1 D E F 1 d e f
2 G H I 2 g h i
3 J K L 3 j k l
5 P Q R 5 p q r
6 S T U 6 s t u
7 V W X 7 v w x
Table 6. List of possible module addresses Table 7. Output assignments
0 SIR AA1
1 SIR INT
6 NC-C-NA (RELAY)
7 Not used in this version
Revision history
Table 8. Document revision history 19-Sept-2006 1 Initial release.