Multi-utility pulse concentrator

Transcription

1 EMDX³ D47C Multi-utility pulse concentrator N292554/00

2 GB Contents Operating instructions DANGER AND WARNING 3 PRELIMINARY OPERATIONS 3 PRESENTATION 4 MODBUS COMMUNICATION 5 INSTALLATION 6 CONFIGURATION 8 OPERATION 9 PROGRAMMING 10 TECHNICAL CHARACTERISTICS 12 ASSISTANCE 13 APPLICATION NOTE RETRIEVING A LOAD CURVE USING COMMUNICATION 14 HANDLING AN ALARM FOR METERING OVERRUN / EXPLAINING DIFFERENT ALARM TYPES 21 FUNCTIONS ONLY AVAILABLE USING COMMUNICATION Ref.: N292554/00

3 DANGER AND WARNING Qualified personnel and correct operation The equipment described in this document may only be installed, commissioned and operated by trained, qualified personnel. Failure to follow the procedures given in these instructions does not imply liability on the part of the manufacturer. Standards, directives, legal provisions and local regulations must be complied with. Risk of electrocution, burns or explosion Before working on the device, isolate all dangerous live components. Always use an appropriate voltage detection device to confirm the absence of voltage. Replace all components, doors and covers before reconnecting this device to the power supply. Always use the appropriate specified voltage to supply this device. Failure to comply with these precautions could result in serious injuries. GB Risk of damage to the device Ensure the correct: voltage across the AUX SUPPLY power supply terminals, Vac / Hz, voltage across the OUTPUT relay, 250 Vac or 30 Vdc. PRELIMINARY OPERATIONS For the safety of personnel and equipment, it is essential to read all of these instructions before using the device for the first time. Confirm the following points upon receipt of the package containing the pulse concentrator: the packaging is in good condition, the product is in good condition, the device part number matches that specified on your order, the contents of the package: - 1 product, - 1 resistance for line impedance 120 Ohms, - 1 mini CD, - 1 quick start instructions Ref.: N292554/00 3

4 PRESENTATION The device is a pulse concentrator equipped with 7 digital inputs (logic or pulse signal) and an RS485 connection to the MODBUS protocol to communicate all datas to a PC or a webserver. It centralises and memorises pulses or logical signals in the output of electrical, gas, heating oil, water and compressed air meters or measurement units in order to: send them via the RS485 communication output to a remote energy management system, display a large number of these items on its local display screen for direct reading of information, generate event alarms (1 dedicated relay output). The pulse concentrator enables advanced customisation of all items, facilitating direct reading of information concentrated in this way: metering unit per input: kwh, m³ currency / input:, K,, $, logical inputs (NO/NC, delay) or pulses (weight, synchronisation source, time intervals for load graphs), logical output: configurable alarm, NO/NC and time delay. It is also possible to display, at any time: the physical status of each of the 7 digital inputs (contact open or closed, pulses present or not), the physical and functional status of the logical output (contact open or closed, output active or inactive), the status of 5 customisable events: date, activation time, duration, type (logical, threshold, or combination of 2 events), severity (4 information levels). The communication interface of pulse concentrator is 2-wire RS485 type using MODBUS protocol and enables: remote access to all information produced by pulse concentrator units, above and beyond that displayed on its screen (cf. application note or MODBUS table), this pulse concentrator to be operated from a PC or programmable logical controller (API/PLC). This product can be configured locally (PROG menu). The pulse concentrator has the following functionalities, with direct reading on the display and values saved to memory: total and partial metering in the chosen unit with currency equivalent, daily, weekly, monthly or annual metering, counting the last synchro trigger, metering on customised trigger (Perso), for each input, it memorises pulses by integrating them over a programmable interval (from 1 to 60 min in 1 min steps) to reconstitute a load graph. Whatever the chosen integration interval, the load graph is created over a sliding period of 17 days. All information is accessible through MODBUS. A Backlight LCD display B and C Keys to scroll through Menu functions (right-left) D and E Keys to scroll through Menu sub-functions (top-bottom) F Access key for programming functions (PROG) G LED to indicate communication frame on RS485 port addressed by it Ref.: N292554/00

5 MODBUS COMMUNICATION RS485 MEDIA In a standard configuration, one RS485 connection enables 32 UL* to be connected to a PC or PLC over 1200 metres using the MODBUS protocol. * 1 UL = one pulse concentrator. Recommendations: A BELDEN cable 9842 or equivalent characteristics cable must be used. Important: It is essential to connect a resistance of 120 Ohms to the 2 ends of the connection; this can be found in the product packaging. Other solutions are available (modem, fibre optic, etc.); please ask for details. GB MODBUS PROTOCOLE The MODBUS protocol operates on a master/slave structure: reading (function 3), writing (function 6 or 16), broadcast option at address 0. The communication method is RTU (Remote Terminal Unit) with hexadecimal characters comprising a minimum of 8 bits. MODBUS TABLE File available on the CD-ROM. APPLICATION The termination resistors RT (120Ω) must be inserted on the first and last device connected to the RS485 bus in the same terminals (+, -) which is connected the bus cable. Metering with pulse output N 1 Ref / Ethernet RJ45 RS485 RT* SG R=120Ω Ref NC Ref Ref RT* NC R=120Ω PC N 7 BELDEN cable 9842 or equivalent characteristics cable m, max. 32 device * Termination resistor RT (120Ω) integrated on the device Ref.: N292554/00 5

6 Installation The pulse concentrator can be mounted on a 35 mm rail (EN 60715TH35). It must be used inside electrical cabinets. CONNECTION Aux.: Vac Vdc Fus.: 0.5 A gg / BS 88 2A gg 250Vac 3A Relay 30Vdc / 1A 0.14 / 2.5 mm / 2.5 mm 2 5 mm 0.6 Nm 0.2 / 6 mm / 4 mm 2 8 mm 0.6 Nm NC 120Ω BELDEN cable 9842 or equivalent characteristics cable Ref.: N292554/00

7 INSTALLATION Connecting logical inputs - Internal polarisation, cable length 1000 m max, 1.5 mm² min. GB NC - External polarisation, cable length 1000 m max, 1.5 mm² min. + - DC AC Stabilized power supply Vdc NC Ref.: N292554/00 7

8 CONFIGURATION To enter configuration mode, press the PROG key for 3 sec. You are asked for a code: Normal user: code 1000 (default value, configurable number): all parameters can be modified EXCEPT those locked by the code Advanced user: code 6825 (not configurable): allows access to all parameters accessible with the code 1000, as well as sensitive "maintenance" parameters: Factory settings and Input Reset. After 1 min if a key is not pressed = automatic exit from programming mode. The configuration is not saved. To save and quit programming mode, press and hold PROG Ref.: N292554/00

9 OPERATION The screens presented in the USAGE / PROGRAMMING charts are not all visible, their display depends on the set-up of your pulse concentrator. Date and time setting Event 1 information: type, seriousness, status Date / Time Alarm 1 Type / Sever / State GB Input 1 Total / Partial Total and partial metering Digital input: Log. Inputs Logical input, physical status Input/State/Pulse and presence of pulses Input 1 Day / Week Input 1 Month / Year Input 1 OnGoing / Custom Input 1 Tot / Part Cost Date and time of last sync signal Daily and weekly metering Top Synchro Last Top Date and time of start of event 1 and duration if completed Idem Input 2 > Input 7. Alarm 1 Date / Duration Inputs 1 to 7 if logical programming Input 1 Dig. Stat/Phys/Func. Name, software version Information and product serial no. Name / Ver / SN Logical output and functional status Monthly and yearly metering Metering since the last sync signal and personal metering Idem Alarm 2 > Alarm 5 Output Dig. Stat/Phys/Func Equivalent in currency of Total and Partial metering Ref.: N292554/00 9

10 PROGRAMMATION Hold down for 3 seconds. Modification with code 1000 Inspection of programming The screens presented in the USAGE/PROGRAMMING charts are not all visible, their display depends on the set-up of your pulse concentrator. Input 1 Mode Pulse meter, logical status or deactivated Inputs Cost Currency Currency setting Output Src / Type / Delay Logical output setting: source of control, NO/ NC type and time Alarm 1 Mode / Sever Mode: logical, analogue, combination or deactivated Input 1 Type / Delay NO/NC type and time Input 1 Enable / Cost Currency conversion activation Alarm 1 Src / Type Logical alarm setting: source and type Input 1 Unit / Weight Pulse weight and unit Idem Input 2 > Input 7. Setting of combination Alarm 1 alarm: source 1, Src1 / Src2 / Type source 2 and type Input 1 Synchro / Integ Sync source and integration time Alarm 1 Src / Type / Hyst Setting of analogue alarm: source, type and hysteresis Input 1 Reset/ Partial/ Custom Pulse metering reset Alarm 1 Low / High Setting of analogue alarm: low or high limit Idem Input 2 > Input 7. Idem Alarm 2 > Alarm Ref.: N292554/00

11 PROGRAMMATION Modification with code 1000 Modification with code 6825 GB Com MODBUS Adress / Mode Mode, address setting * Date Day / Month / Year Day, month, year setting Language English Language selection Maintenance Factory Cfg / Action Reset to factory settings Com MODBUS Baudrate/ Stop / Parity Speed, stop, parity setting Hour Hour / Minute / Second Hours, minutes, seconds setting Lock Code 1000 Password selection, used for modifying the config. Maintenance Input Reset / Src / Act Input reset Display Contr./ Backl./ Timeout Contrast, brightness, standby setting * MANUAL mode This mode enables manual configuration of all communication parameters MODBUS: Address, Speed, Parity, Stop bit. AUTO mode This mode enables automatic configuration of most of the communication parameters (Speed, Parity, Stop bit). Only the communication address for the communicating product has to be entered. The mode only functions under the following conditions: Communication speed between 9600 and baud. MODBUS frame format: - 8 bits + 2 stop + no parity, - 8 bits + 1 stop + parity Ref.: N292554/00 11

12 TECHNICAL CHARACTERISTICS Descriptions Min Max Units Comments Auxiliary power supply AC voltage Vac +/-10%, 45/65Hz, 5VA DC voltage Vdc +/-10%, 5VA Climate Ambient temperature C IEC / -2-2 Storage temperature C IEC / -2-2 Ambient humidity 95 %RH IEC Vibration Vibration 2 G IEC to 100Hz Case Dimensions 73x90x67 mm L x W x H Weight 215 g Protection index of enclosure IP51/IP20 Front/Case Electrical safety Cat. Install. /degree of pollution III/2 IEC ed. 3 (300Vac Ph/N) Updating period Display 1 Sec RS 485 communication 0,5 Sec Digital inputs Direct voltage Vdc Terminal 50 reference Current 2 15 ma According to IEC Class B Line length 1000 m Min. section 1.5mm² (#16AWG) Pulse duration 30 ms max. 16Hz Power consumption per input 0,4 VA Internal digital input polarisation power supply Voltage Vdc (Max. 35mA) Relay output Set-up (contact setting) 1 contact (NO, NC) (Max. 35mA) Mechanical strength 10 5 cycles (Max. 35mA) AC breaking Vac / 3A (Max. 35mA) DC breaking 10 30Vdc /1A (Max. 35mA) RS485 bus communication (MODBUS protocol) Line length 1200 m Number of equipment 32 2 shielded wires + half duplex Modulation speed 9.6K, 19.2K, 38.4Kbds This symbol indicates that the product may not be disposed of with other household waste, so as not to harm the environment or human health (WEEE directive, 2002/96/EC). The device contains a LiMnO2 primary cell. When the product reaches the end of its life, this cell must be correctly removed and disposed of in accordance with national legislation and the requirements of environmental protection. Compliant with RoHS directive. The pulse concentrator complies with the following European directives: - Electromagnetic Compatibility Directive, no. 2004/108/EC (2004/12/15) - Low Voltage Directive, no. 2006/95/EC (2006/12/12) Protection class II Protection class II is only guaranteed if the product is installed in a distribution cabinet with an appropriate front cover Ref.: N292554/00

13 ASSISTANCE Device not switched on Check the power supply cable Vac or Vdc between terminals 20 and 22, if there is voltage present and the device does not switch on, please return the device to us. Faulty communication Check configuration in MANUAL mode: address, speed, parity, stop bit (p.11) and cabling (p.5). The meter does not advance incrementally Poor connection. Go to the menu E. Digital. (p.9) Connect the input to be tested to terminal + 51 (p.7) to verify that the "pulse detected" pictogram changes state correctly. GB Ref.: N292554/00 13

14 RETRIEVING A LOAD CURVE USING COMMUNICATION This application note will give details of the procedure for retrieving a load curve for a pulsed input. Need A pulsed input (input 1 in this example) will give a total value in kwh. However, this value alone will not allow you to know which kwh were consumed in the "off-peak" or "peak" periods. In order to create a pricing breakdown, the load curve allows you to know exactly when consumption took place. It is also useful to be able to confirm if the maximum subscribed power from the electricity supplier has been exceeded. Pulse metering results, from an energy meter emitting a 100 ms pulse every 0.1 kwh. PROCEDURE - Cabling: NC Pulse output meter 1 120Ω BELDEN cable 9842 or equivalent characteristics cable. The load curve can only be retrieved through communication. In this example, we are going to use a 10 minute integration period because the electricity supplier invoices energy against 10 minute average powers. Excess power penalties are also measured over 10 minute powers Ref.: N292554/00

15 RETRIEVING A LOAD CURVE USING COMMUNICATION Configuration Certain operations can be carried out in 2 ways, either by using buttons and the product screen, or by communication. In this procedure, we will detail the procedure using communication. - Configuration of retrieved pulse: Input 1 used as pulse counter. Dec address Hex address Word Count Description Unit Function B05 1 Mode: 0x00: Disabled 0x01: Pulse meter 0x02: Logical input List 3, 6, 16 Write the value "1" (01 in hexadecimal, by using the MODBUS function code 6) to allocate the input as pulse counter. GB - kwh pulse unit: Dec address Hex address Word Count Description Unit Function B08 2 Weight 1/10 of Unit 3, 6, 16 Write the value "1" (01 in hexadecimal, by using the MODBUS function code 6) to allocate the weight WEIGHT, 0.1: Dec address Hex address Word Count Description Unit Function B0A 1 Unit: / 3, 6, 16 9: None 0: Wh 1: Varh 2: VAh 3: m3 4: Nm3 5: J 10: kwh 11: kvarh 12: kvah 13: km3 14: knm3 15: kj Write the value "1" (01 in hexadecimal, by using the MODBUS function code 6) to allocate the weight Ref.: N292554/00 15

16 RETRIEVING A LOAD CURVE USING COMMUNICATION Configuration - Changing the integration period: There are 2 levels: 1. Base integration period: this defines the recording period for load curves. Example: - 17 days with base period 1 minute, days with base period 10 minutes. 2. Integration period for each input: it must be a multiple of the base integration period. For example, if the base integration period is 10 minutes. Configuration examples: - Input 1: 10 minutes => possible, - Input 2: 20 minutes => possible, - Input 3: 15 minutes => not possible. Number of recordings (Invariable) Base integration period (minute) (Modifiable only using MODBUS, advanced parameter, etc.) Integration period for an input (minute) (Modifiable using GUI and MODBUS, must be a multiple of the base integration period) Equivalent recording depth (day) In our example, we are going to configure the base integration period to 10 minutes and the integration time for input 1 also to 10 minutes. For protection, a password is required to be able to change the configuration: - Using communication: write the password in a register. - Using the screen and buttons on the front of the product: enter the same password. Use the registers --Enter the code allowing configuration: Dec address Hex address Word Count Description Unit Function E300 1 password 3, 6, 16 Write the value "6825" (1AA9 in hexadecimal, by using the MODBUS function code 6). --Change the base integration time: Dec address Hex address Word Description Unit Function Count BBD 1 Load Curves Base Integration Time min 3, 6, 16 Write the value "10" (0A in hexadecimal, by using the MODBUS function code 6) in the 9BBD register Ref.: N292554/00

17 RETRIEVING A LOAD CURVE USING COMMUNICATION --Input 1 integration time: Dec address Hex address Word Count Description Unit Function Hex address 9B0B 1 Integration Time (* base) min 3, 6, 16 Write the value "1" (MODBUS function code 6) in the 9B0B register. The unit is "(* base) min" set to 10 minutes. GB Recommendations: Other parameters linked to the configuration of this pulse input (weight, synchronisation type, etc. can be configured either using MODBUS RS485 communication or by using the screen and buttons on the pulse concentrator). -Storing - the configuration: Dec address Hex address Word Count Description Unit Function E200 1 Action: 0xA1: Product Configuration storage 0xB2: Product reset 6 Write the value "A1" (hex) in E200 register to store the configuration. Write the value "B2" (hex) in E200 register then to restart the product. After the input has been configured and pulses counted over time, it is possible to retrieve the load curve Ref.: N292554/00 17

18 RETRIEVING A LOAD CURVE USING COMMUNICATION Operation There are not as many registers as there are points saved. The interrogation method must therefore be as follows: Read part of the load curve in a certain register range, then update these registers with the subsequent data, go and read the subsequent data in the same register range, and so on. Configuring the pointer on the most recent values: write the value 0x0001 in register R1 Read the first list of data: Read 122 words in register R2 If the value Record Count = 0 End reading Configuring the pointer on the next values: write the value 0xFFF1 in register R1 Read the first list of following data: Read 122 words in register R2 The registers to be used for pulse input 1 are: Dec address Hex address Word Description Unit Function Count R1 Area R2 Area Ref.: N292554/00

19 RETRIEVING A LOAD CURVE USING COMMUNICATION The 122 words in areas R2 breakdown as follows: Dec address Hex address Word Count Description Unit Function Record count (maximum 29) Record size = 4 Nbr of 3 see below the data record description Words Header Integration period Second Physical Unit Base Unit Numerator Rate Denominator Rate 3 Data Buffer Records (x29) see below the description A 122 GB Record count: This is the number of the data packet. If this value is 0, it means that the whole load curve has been downloaded. Record size: This value is always 4, means that each point of the load curve is given over 4 words. Integration time: The integration period specific to this input. (in seconds). Information type: This is the input unit. Interpretation is as follows: 0: W 1: W 2: var 3: var 4: VA 5: None 6: J 7: Pulse 8: m3 9: Nm3 20: kw 22: kvar 24: kva 26: kj 27: kilo-pulse Numerator Rate and Denominator Rate enable the weight to be allocated. Records (x 29): In 116 words, we find 116/29 = 4 words per point. These 4 words are to be interpreted as follows: Word Count Description Unit 2 Date Seconds since 1st jan Full/incomplete period 0: full integration period 1: incomplete integration period 1 Value Unit = Base Unit * Numerator Rate / Denominator Rate Ref.: N292554/00 19

20 RETRIEVING A LOAD CURVE USING COMMUNICATION Date: In seconds from 1st January h00min00s. For example, if the value is time-stamped at 1st January h00, the value will be: [11 years x 365 days + 3 (leap years 2000, 2004, 2008)] x 24h x 60 minutes x 60 seconds = Full/incomplete period: If the pulse concentrator is turned on throughout the integration of this value, the value will be 0, which would mean that this value is full. Value: This value is given in base unit. To really obtain metering in base unit (info retrieved in the "information type" register) for this integration period, the following operation by be carried out between the different registers: Real value = Value x Numerator / Denominator x Type information Ref.: N292554/00

21 HANDLING AN ALARM FOR METERING OVERRUN / EXPLAINING DIFFERENT ALARM TYPES This application note will give details about the procedure for generating an alarm as soon as weekly metering on the input exceeds 100 kwh. Need In the context of an energy optimisation project, the lighting systems in a workshop should not exceed 100 kwh per week if the lights are only switched on during working hours. An energy meter meters active energy consumed by the lighting circuit. The pulse output from this meter is connected to pulse input 1 of the pulse concentrator. An alarm enables this parameter to be monitored. The alarm will be associated with an output relay to illuminate an indicator light. GB Procedure - Cabling: Aux.: Va.c. Indicator light NC Ref.: N292554/00 21

22 HANDLING AN ALARM FOR METERING OVERRUN / EXPLAINING DIFFERENT ALARM TYPES Configuration Warning: after one minute no key press = automatically exit mode configuration is not saved. Some operations can be carried out in 2 ways, either by using buttons and the product screen, or by communication. Different steps in configuration: - alarm declaration, - assign alarm to the output relay. - Alarm declaration: Alarm 1 Mode / Sever Alarm 1 Src / Type Mode: logical, analogue, combination or deactivated Logical alarm setting: source and type Alarm 1 Src1 / Src2 / Type Setting of combination alarm: source 1, source 2 and type Alarm 1 Src / Type / Hyst Setting of analogue alarm: source, type and hysteresis Alarm 1 Low / High Setting of analogue alarm: low or high limit Idem Alarm 2 > Alarm 5. Press the PROG button for 3s. Press the RIGHT ARROW button 3 times. Press PROG to unlock the programming menu (the configuration display is freely accessible, but changing it requires a password, default value 1000). Press the UP ARROW once to display 1000 and confirm with PROG: the config menu now appears released. Press PROG to select the alarm function. Press the DOWN ARROW 2x to select ANALOG. Accept using PROG, the choice of severity is automatically selected. Press the DOWN ARROW 2x to select WARNING (this severity is for information only, to manage different alarm levels). Accept using PROG. Press the DOWN ARROW to go to the 2nd config screen for alarm 1. Press PROG to select the parameter monitored by the alarm Ref.: N292554/00

23 HANDLING AN ALARM FOR METERING OVERRUN / EXPLAINING DIFFERENT ALARM TYPES - Alarm declaration (continued): Press the DOWN ARROW several times until you reach "WEEK In 1", which is for weekly pulse metering of input 1. Accept using PROG, the alarm type is selected automatically. Press the DOWN ARROW 2x to reach "MATCH H". Accept using PROG, hysteresis is selected automatically. If you don't want hysteresis, leave the value on 0 and accept using PROG. Press the DOWN ARROW to go to the 3rd config screen for alarm 1. Press PROG to select the lower limit. If you don't want an alarm for "insufficient" metering, then you can leave this value at 0 and accept using PROG. This automatically selects the upper limit. Press the RIGHT ARROW 5x and the UP ARROW 1x to display Accept using PROG. GB The alarm is now configured. We will assign the output relay to this alarm: Output Src / Type / Delay Logical output setting: source of control, NO/NC type and time Press the LEFT ARROW 2x to display the "OUTPUT" menu. Accept using PROG to select the source. Press the DOWN ARROW 1x to display ALARM 1. The type is selected automatically. Normally Open (NO) operation is correct. Accept using PROG, which selects the time limit automatically. A time limit is not necessary. Leave the value at 0 and accept using PROG. Quit the programming menu by pressing PROG for 3 seconds. - Operation: As soon as weekly metering on input 1 is greater than 100 kwh, a danger pictogram displayed on the screen and the output relay will be closed. will be Ref.: N292554/00 23

24 HANDLING AN ALARM FOR METERING OVERRUN / EXPLAINING DIFFERENT ALARM TYPES Appendix: different types of configurable alarms There are 3 types of configurable alarms: - Analogue alarms: These alarms monitor measured parameters: exceeding a weekly metering value on input 1, etc. The following conditions can activate the alarm: "STATE" alarms / continuous alarms as long as the activation condition is fulfilled. These alarms are only deactivated when the parameter is no longer in alarm conditions. For example, an alarm for exceeding a daily metering value will therefore stop only when the following day begins. It is possible to associate the digital output with these alarms. The various configurations are: * MATCH HIGH: as soon as the parameter is over the threshold. * MATCH LOW: as soon as the parameter is under the threshold. * H and L: as soon as the parameter is over MATCH HIGH or under MATCH LOW. "EDGE" alarms do not continue, but are logged in the product, even if the parameter is still in the alarm condition. * HIGH: as soon as the parameter is over the threshold. * LOW: as soon as the parameter is under the threshold. It is not necessary to associate the digital output with this alarm type because the alarm does not continue. - Combination alarm: These alarms are AND / OR combinations between logical variables: * 7 digital inputs, * 10 alarms. For example, you can do: * Alarm 1 = Input 1 or Input 2, * Alarm 2 = Input 3 or Alarm 1. - Logical alarm: The monitored parameter is a logical parameter: - Input 1, 2, 3, 4, 5, 6, 7. The following conditions can activate the alarm: "STATE" alarms / continuous alarms can activate as long as the activation condition is fulfilled. These alarms are only deactivated when the parameter is no longer in alarm conditions. For example, an alarm for exceeding a daily metering value will therefore stop only when the following day begins. It is possible to associate the digital output with these alarms. The various configurations are: * HIGH: as soon as the input is in the active state (depending on NO/NC configuration => input closed if configured as NO + may take account of a configured time limit). * LOW: as soon as the input is in the active state (depending on NO/NC configuration => input open if configured as NO + may take account of a configured time limit). "EDGE" alarms do not continue but are logged in the product, even if the parameter is still in the alarm condition. * RISING: as soon as the alarm changes from inactive state to active state (+ may take account of a configured time limit). * FALLING: as soon as the alarm changes from active state to inactive state (+ may take account of a configured time limit). * EDGE: as soon as the alarm changes state (from active to inactive, or inactive to active + may take account of a configured time limit). It is not necessary to associate the digital output with this alarm type, because the alarm does not continue Ref.: N292554/00

25 HANDLING AN ALARM FOR METERING OVERRUN / EXPLAINING DIFFERENT ALARM TYPES INACTIVE INACTIVE t1 t1 Type: edge Start date: t1.date Start time: t1.time Duration: 0 Type: edge Start date: t1.date Start time: t1.time Duration: 0 ACTIVE ACTIVE Alarm on logical input Type: RISING Alarm on weekly counting input 1 Type: MATCH HIGH t1 t2 INACTIVE t1 t2 INACTIVE Type: state Start date: t1.date Start time: t1.time Duration: t2-t1 Type: state Start date: t1.date Start time: t1.time Duration: t2-t1 ACTIVE ACTIVE Alarm on logical input Type: HIGH Alarm on weekly counting input 1 Type: HIGH t1 t2 INACTIVE t1 t2 HIGH t1: the input becomes active t2: the input becomes inactive t1: the meter goes over the threshold t2: the meter goes under the threshold ACTIVE LOGICAL INPUT PULSE INPUT 1 - WEEK EXAMPLE EDGE RISING FALLING EDGE (RISING and FALLING) EDGE MATCH HIGH MATCH LOW MATCH HIGH and MATCH LOW (H. and L.) TYPE STATE HIGH LOW TYPE STATE HIGH LOW LOGICAL ANALOG CONFIGURATION ALARM GB Ref.: N292554/00 25

26 FUNCTIONS ONLY AVAILABLE USING COMMUNICATION Some functions are only available using communication and are not accessible using the buttons and screen of the pulse concentrator. These functions must be configured and used through the RS485 MODBUS communication interface. Here is the list and registry ranges for these different functions: FUNCTION MODBUS REGISTRY RANGE (Hex) Log of the last 150 alarms F900 Use of a time signal using communication 90F0 Log of indexes days of load curves (1 minute values) 9500 Using 10 different alarms 9D00 Log of the last 150 alarms It is possible to use communication to retrieve the log of the last 150 timestamped events. These events are recorded under the configured conditions using the product's buttons and screen (5 different alarms) or through communication (10 different alarms). Use of a time signal using communication The time signal is used to synchronise integration times for load curves against a clock that may be: - Internal (04687 pulse concentrator internal clock), - External (time signal retrieved on a logical input), - Communication (time signal retrieved using communication). Log of indexes for the 7 logical inputs used for pulse metering The following logs are available: - Daily: last 7 days, - Weekly: last 5 weeks, - Monthly: last 12 months, - Annual: the last year Ref.: N292554/00

27 FUNCTIONS ONLY AVAILABLE USING COMMUNICATION Load curve for logical input Load curves are available for logical inputs. This allows you, for example, to separate a meter total in kwh between different time periods (different pricing periods). They record the number of pulses received per integration time over a period linked to the integration time. Example: - If the integration time is 1 minute, the recording depth is 17 days. - If the integration time is 10 minutes, the recording depth is 170 days. See the retrieval procedure for load curves. (p.14) GB Using 10 different alarms It is possible to configure 5 alarms using the product's buttons and screen, as opposed to 10 alarms using communication (another 5). Configuration takes account of the different alarm activation conditions. When alarm activation conditions are fulfilled, the alarm is automatically registered and timestamped. It is also possible to link a digital electrical output to activation of an alarm. See the procedure for managing an alarm for metering overrun and for explaining different alarm types. (p.21) Ref.: N292554/00 27

28 539940A