USER GUIDE FOR SIGFOX PIEZO-ELECTRIC 10KHZ VIBRATION SENSOR WSSFC-V1A THIS IS OBSOLETE MANUAL Please access https://www.iot.daviteq.com/wireless-sensors for updated manual WSSFC-V1A-MN-EN-01 MAY-2021 This document is applied for the following products SKU WSSFC-V1A HW Ver. 1.1 FW Ver. 1.0 Item Code WSSFC-V1A-9-01 SIGFOX PIEZO-ELECTRIC 10KHZ VIBRATION SENSOR, +/- 25G, INTERNAL ANTENNA, TYPE AA BATTERY 1.5VDC, IP67, RC2-RC3-RC4-RC5 ZONES WSSFC-V1A-8-01 SIGFOX PIEZO-ELECTRIC 10KHZ VIBRATION SENSOR, +/- 25G, INTERNAL ANTENNA, TYPE AA BATTERY 1.5VDC, IP67, RC1-RC6-RC7 ZONES 0. Configuration Check List STEP 1: Select RC 1. Select RC zone using Modbus Configuration Cable RC zones selection 1, 2, 4 is RCZ1, RCZ2, RCZ4  (refer to register address 270) 2. Select RC zone using button Refer to the button configuration STEP 2:  Check ID and PAC Use Modbus Configuration Cable to read the ID and PAC values Refer to register address 8 and 10 (DEC) STEP 3:  Configure the sensor's operating parameters Configure parameters like cycle send data, alarm, a, b,... Refer to the configuration section using the Modbus Configuration Cable STEP 4:  Add device to Backend Sigfox refer to section 5.4 for details 1. Functions Change Log HW Ver. FW Ver. Release Date Functions Change 1.1 1.0 DEC-2020 2. Introduction WSSFC-V1A is a cost effective, Sigfox accelerometer single-axis vibration sensor designed for condition monitoring and preventive maintenance applications. The piezo-electric accelerometer is available in ranges ±25g or 50g and features a flat frequency response up to >10kHz. Its accelerometer feature a stable piezo-ceramic crystal in shear mode with low power electronics, sealed in a fully hermetic package. The Piezo Electric technology incorporated in the WSSCF-V1A accelerometer has a proven track record for offering the reliable and long-term stable output required for condition monitoring applications. The accelerometer is designed and qualified for machine health monitoring and has superior Resolution, Dynamic Range and Bandwidth to MEMS devices. Beside that it can also measure the temperature at mounting point. With Ultra-low power design and smart firmware allow the complete Wireless and Sensor package run on 2 x AA battery up to 10 years. It can support all regions of Sigfox network in over the World, RC1, RC2, RC3, RC4, RC5, RC6, RC7. 3. Specification SENSOR SPECIFICATION Sensor technology Hermetically Sealed, Piezo-Ceramic Crystal, Shear Mode Acceleration Range and Shock Limit (g) ±25 or 50, 10,000 Frequency Response and Resonant Frequency (Hz) 2-10000, >30000 Non-Linearity, Transverse Sensitivity ±2%FSO, < 5% Temperature measuring and operating range, accuracy & resolution (°C) -40.. +85, +/- 0.5, 0.125 Sensor Material, mousing protection and mounting 304SUS, IP67, M6 Screw *Notes All above values are typical at +24°C, 80Hz Connector M12-M 4-pin, Coding A Extended cable (optional) 2m cable with M12-F and M12-M at two ends SIGFOX SPECIFICATION Sigfox zones select RC2-RC3-RC4-RC5 or RC1-RC6-RC7 Antenna Internal Antenna 2 dbi Configuration via offline USB cable (PC software is supplied at free) Battery 02 x AA Type 1.5VDC, working time up to 10 years (depends on configuration) RF Module complies to CE, FCC, ARIB Working temperature -40oC..+60oC (using Energizer Lithium Ultimate AA battery) Dimensions H106xW73xD42 Net-weight 190 grams Housing Aluminum+Polycarbonate, IP67 Mounting Wall mount bracket 4. Dimensions 5. Operation Principle Upon power on, the Sigfox node has 60 seconds to wait for off-line configuration (via cable with ModbusRTU protocol). After that, Sigfox node will send the first message to Base station. Then during the operation, there are 03 cases of sending data to base station: 1. When the sensor sampling time interval is reached, the Sigfox node will read the data from Input or sensor and performing the calculation. After that it will check calculated value with alarm thresholds. If the calculated was out off the threshold values (Lo or Hi), called alarm, and the number of times of alarm did not pass the limit of number of alarms, then it will send data to Base station immediately; NOTE: Once sending the data to base station by this alarm event, the timer of sending time interval will be reset; 2. When the sending time interval is reached, it will send data to Base station immediately, regardless of value; 3. By using the magnet key, the Sigfox node can be triggered to send data to base station immediately. There will be a beep sound from the buzzer meaning the data has been sent. NOTE:Once sending the data to base station by the magnet key, the timer of sending time interval will be reset;The shortest time interval between the two manual triggers is 15s. if shorter than 15s, there will be no data sending and you will not hear the beep sound. 5.1 LED meaning Whenever the data is sent to base station, the LED will lit with color codes as below: RC1: RED colour RC2: GREEN colour RC4: BLUE colour 5.2 Button Function the push button can only be used for the first 60 seconds after powering up. 5.2.1 Menu configuration There are 3 configuration menus: tx_repeat, downlink_flag, radio configuration. We use the button to enter the menus as follows: 5.2.1.1 tx_repeat Press and hold the button 2s  ->  When the Red LED is on, it means entering the tx_repeat configuration menu. Then release to configure it. Press to configure. After pressing if the Red LED flashes once, tx_repeat = 0 (send 1 time). After pressing if the Red LED blinks twice, it is tx_repeat = 1 (send 3 times). 5.2.1.1 downlink_flag Press and hold the button 5s  ->  When the Green LED is on, it means entering the downlink_flag configuration menu. Then release to configure it. Press to configure. After pressing if the Green LED flashes once, it is downlink_flag = 0 (downlink is not allowed). After pressing if the Red LED blinks twice, it is downlink_flag = 1 (downlink is allowed). 5.2.1.1 radio configuration Press and hold the button 10s  ->  Blue LED is on, it means entering the Radio Configuration menu. Then release to configure it. Press to configure. After pressing if the Blue LED blinks once, it is Radio Configuration = 1. After pressing if the Blue LED flashes twice, it is Radio Configuration = 2. After pressing if the Blue LED flashes 4 times, it is Radio Configuration = 4. 5.2.2 Exit the menu: There are 3 ways to exit the menu: Press and hold for 3s, the LED turns off to exit the menu; Wait 30 seconds, then exit the menu; Take out the battery, it all starts over (outside the menu)). 5.3 RC technical details The RF transmit power will be automatically set as the max value as allowed by the Zone. Sigfox Radio Configuration (RC) defines the radio parameters in which the device shall operate: Sigfox operating frequencies, output power, spectrum access mechanism, throughput, coexistence with other radio technologies, etc. Each radio configuration includes 4 uplink classes: 0u, 1u, 2u, and 3u. The Sigfox network globally works within the ranges from 862 to 928 MHz. But not all RCs require such a wide range of operation. RC1 RC2 RC4 Uplink center frequency (MHz) 868.130 902.200 920.800 Downlink center frequency (MHz) 869.525 905.200 922.300 Uplink data rate (bit/s) 100 600 600 Downlink data rate (bit/s) 600 600 600 Sigfox recommended EIRP (dBm) 16 24 24 Specifics Duty cycle 1% * Frequency hopping ** Frequency hopping ** * Duty cycle is 1% of the time per hour (36 seconds). For an 8 to 12 bytes payload, this means 6 messages per hour, 140 per day. ** Frequency hopping: The device broadcasts each message 3 times on 3 different frequencies. Maximum On time 400 ms per channel. No new emission before 20 s. *** Listen Before Talk: Devices must verify that the Sigfox-operated 200 kHz channel is free of any signal stronger than −80 dBm before transmitting. Sigfox’s high limit EIRP recommendation is included in each column although regulations sometimes allow for more radiated power than the Sigfox recommendation. Sigfox’s recommendation is set to comply with the Sigfox technological approach of: Low current consumption Balanced link budget between uplink and downlink communication 5.4 Add a device to the Backend Sigfox Step 1: Log in to the sigfox backend website Step 2: Click on Device Step 3: Click New → Select a group Step 4: Fill in the required information Note: Some of our products may not have end product certification in time, to add the product to Backend Sigfox please follow the steps below. Click on the text as shown below Check the box as shown below to register as a prototype 5.5 Measurement principle of Sigfox Vibration Sensor When the time interval is reached, for example 30 minutes, the Sigfox node will wake up and switch ON the power supply to supply the energy to vibration sensor module to start the measurement. Depends on the type and characteristic of external sensor, the sensor will take a certain time to finish the measurement. With vibration sensor, here are the 8 measurement values: Acceleration Peak (m/s2) Acceleration RMS (m/s2) Velocity Peak (mm/s) Velocity RMS (mm/s) Displacement Peak-Peak (um) Displacement RMS (um) Base vibration frequency (Hz) Temperature (oC) Because the Payload of Sigfox sensor is limited by 12 bytes, we use the first 02 bytes for Sensor information and status, the rest 10 bytes will store measurement value. With above 8 measurement values, we have to device it into 03 datagrams. Each datagram will be sent each time. Values to be sent in Datagram 1: Velocity RMS (mm/s) Acceleration Peak (mm/s) Frequency (Hz) Values to be sent in Datagram 2: Velocity Peak (mm/s) Acceleration RMS (m/s2) Temperature (oC) (Real Temperature value = Temperature value / 10) Values to be sent in Datagram 3: Displacement Peak-Peak (um) Displacement RMS (um) Frequency (Hz) User can configure the Sigfox node to send any number of datagram, but minimum is Datagram 1. The configuration can be done offline via cable & software OR via downlink. 5.6 Payload Data The following is the format of payload data will be sent to Sigfox server. 5.6.1 Payload for uplink 12 bytes Sensor type (1 byte) Status + Datagram (1 byte) Parameter 1 (4 bytes) Parameter 2 (4 bytes) Parameter 2 (2 bytes) Meaning of Data in the Payload Data Size Bit Format Meaning Sensor type 1 byte all Uint8 Sensor type: 0x10 means Sigfox V1A 0xFF means no sensor. Status: battery level 2 bits Bit 7 and 6 Battery capacity in 04 levels 11: battery level 4 (99%) 10: battery level 3 (60%) 01: battery level 2 (30%) 00: battery level 1 (10%) Status: error 2 bits Bit 5 and 4 Node status 01: error 00: no error Datagram 4 bits Bit 3 to 0 Datagram 000 : Datagram 1 001 : Datagram 2010 : Datagram 3 Parameter 1 4 bytes all Float Datagram 1 : Velocity RMS (mm/s)Datagram 2 : Velocity Peak (mm/s) Datagram 3 : Displacement Peak-Peak (um) Parameter 2 4 bytes all Float Datagram 1 : Acceleration Peak (mm/s)Datagram 2 : Acceleration RMS (m/s2) Datagram 3 : Displacement RMS (um) Parameter 3 2 bytes all Datagram 1 : uint16; Datagram 2 : int16; Datagram 3 : uint16 Datagram 1 : Frequency (Hz)Datagram 2 : Temperature (oC) Real Temperature value = Temperature value / 10 Datagram 3 : Frequency (Hz) 5.6.2 Payload for Downlink, length is 8 bytes. The Sigfox node is only able to receive max 04 downlinks a day, each downlink will be waiting in every 06 hours. User can set the down link data in Sigfox back-end system in advance, whenever the Sigfox node connected to base stations and with downlink waiting is enable at that time (one time in 6 hours), the downlink data will be loaded to Sigfox node. The downlink data can be any configuration parameter. Please pay attention when send downlink data. If there was a mistake in sending wrong data, it would cause the Sigfox node not working properly and user need to configure it by offline cable!!! Downlink payload format: Prm_adr (1 byte) Prm_len (1 byte) Prm_value (6 bytes) Examples of Downlink data to configure the Sigfox node: Prm_name Prm_adr Prm_len Comment cycle_send_data 0x12 0x04 to configure the interval time of data sending, in seconds. Enb_datagram 0x44 0x02 to configure which datagram to be sent. Explain for Enb_datagram: bit 0 = 1: enable datagram 1 bit 0 = 0: disable datagram 1 bit 1 = 1: enable datagram 2 bit 1 = 0: disable datagram 2 bit 2 = 1: enable datagram 3 bit 2 = 0: disable datagram 3 Some examples of Enb_datagram: Enb_datagram = 0x0000 ==> Only datagram 1 will be sent. Enb_datagram = 0x07 = 0b00000111 ==> Enable 3 datagrams At 1st cycle_send_data , Sigfox V1A will send datagram 1 At 2nd cycle_send_data , Sigfox V1A will send datagram 2 At 3rd cycle_send_data , Sigfox V1A will send datagram 3 At 4th cycle_send_data , Sigfox V1A will send datagram 1 and so on. Enb_datagram = 0x05 = 0b00000101 ==> Enable datagram 1 and 3, disable datagram 2 At 1st cycle_send_data , Sigfox V1A will send datagram 1 At 2nd cycle_send_data , Sigfox V1A will send datagram 3 At 3rd cycle_send_data , Sigfox V1A will send datagram 1 At 4th cycle_send_data , Sigfox V1A will send datagram 3 and so on. 6. Offline configuration Using the configuration cable to connect to the sensor as below picture. Serial port configuration on computer: 9600 baud, None parity, 1 stop bit.Reading data by Function 3.Writing data by Function 16. During connection with Modbus configuration tool, the Sigfox node will send all data in realtime: Battery, Battery level, Vref, Button status, reed switch status, PCB temperature, Measured value, alarm status. Step to configure & check data: NOTE: The Modbus configuration can be done in the first 60s after power up the Sigfox node. After 60s, if user can not finish the configuration, user need to reset the power of Sigfox node again, by removing battery in at least 15s. Step 1: Install the Modbus Configurator Software in the link below https://filerun.daviteq.com/wl/?id=qK0PGNbY1g1fuxTqbFW9SXtEvCw7bpc6 How to use the Modbus configuration software Step 2: Plug the configuration cable to Computer via USB port; Step 3: Open the housing; Step 4: Plug the connector to the configuration port; Step 5:  Import the configuration file by importing the csv file: Go to MENU: FILE / Import New / => select the file with name CONFIGURATION TEMPLATE FILE FOR SIGFOX.csv (in the link below). Then click Connect; CONFIGURATION TEMPLATE FILE FOR SIGFOX WSSFC-V1A.csv Here is the table of Data will be read by Modbus tool Modbus Register (Decimal) Modbus Register (Hex) Function Code # of Registers Description Range Default Format Property Comment 0 0 3 2 device info string Read Product name 2 2 3 4 firmware version string Read 6 6 3 2 hardware version string Read 8 8 3 2 device ID hex Read Product ID 10 A 3 4 device PAC hex Read Product PAC 14 E 3 1 sen_type 1-255 uint16 Read Sensor or Input Type 15 F 3 1 batt level 0-3 uint16 Read Battery level 16 10 3 1 err_status 0-1 uint16 Read Sensor error code 23 17 3 1 batt % 10%, 30%, 60%, 99% uint16 Read Battery % 24 18 3 2 batt volt 0-3.67 vdc float Read Battery Voltage 26 1A 3 2 temp oC float Read RF module temperature 28 1C 3 1 vref 0-3.67 vdc uint16 Read Vref of RF Module 29 1D 3 1 btn1 status 0-1 uint16 Read Button status, 0: released, 1: pressed 30 1E 3 1 btn2 status 0-1 uint16 Read Reedswitch status, 0: opened, 1: closed Here is the table for Configuration: Modbus Register (Decimal) Modbus Register (Hex) Function Code (Read) Function Code (Write) # of Registers Description Range Default Format Property Comment 270 10E 3 16 1 Radio Configuration 1-6 4 uint16 Read/ Write RC zones selection 1, 2 ,4 is RCZ1, RCZ2, RCZ4 271 10F 3 16 1 tx_power 20 int16 Read/ Write RF Tx power 272 110 3 16 1 tx_repeat 0-1 1 uint16 Read/ Write Number of repeat, 0: 1 time, 1: 3 repeats 273 111 3 16 1 downlink_flag 0-1 0 uint16 Read/ Write 1: enable Downlink, 0: disable Downlink (Fw v1.0 hasn't got Downlink function) 274 112 3 16 2 cycle_send_data 900 uint32 Read/ Write Data sending cycle, in seconds 278 116 3 16 1 alarm_limit 44 uint16 Read/ Write Limit number of alarm sending in 24h 280 118 3 16 2 sensor1: sampling_rate 120 uint32 Read/ Write Sensor/Input 1 sampling rate, in seconds 282 11A 3 16 2 sensor1: calc_time 100 uint32 Read/ Write Measurement time of sensor/input 1, in ms 324 144 3 16 1 enb_datagram 0x0001 hex Read/ Write bit 0 = 1: enb datagram 1bit 0 = 0: dis datagram 1bit 1 = 1: enb datagram 2bit 1 = 0: dis datagram 2bit 2 = 1: enb datagram 3bit 2 = 0: dis datagram 3enb_datagram = 0x0000: emb datagram 1 7. Installation 7.1 Locate the good place for Radio signal To maximize the distance of transmission, the ideal condition is Line-of-sight (LOS) between the Sigfox sensor and Base station. In real life, there may be no LOS condition. However, the Sigfox sensor still communicate with Base station, but the distance will be reduced significantly. ATTENTION:DO NOT install the Sigfox sensor or its antenna inside a completed metallic box or housing, because RF signal can not pass through metallic wall. The housing is made from Non-metallic materials like plastic, glass, wood, leather, concrete, cement…is acceptable. 7.2 Process mounting WARNING: The sensor should be mounted on an oil-free and grease-free surface as close to the source of vibration as possible. For best results, the sensor should be mounted via a drill hole and have an M6x1.0 threaded hole (an adapter can be used) attached directly to the housing. Please make sure that the operating ambient temperature is within the specification of sensor.Prepare the professional tools for installation. The inappropriate tools may cause damage to the sensor. DANGER: Do not twist the upper part of sensor, only screwing the sensor by using the HEX wrench with the lower HEX part of sensor. 7.3 Battery installation Steps for battery installation: Step 1: Using L hex key to unscrew M4 screws at the side of the housing and carefully pull out the top plastic housing in the vertical direction Step 2: Insert 02 x AA 1.5VDC battery, please take note the poles of the battery ATTENTION:REVERSED POLARITY OF BATTERIES IN 10 SECONDS CAN DAMAGE THE SENSOR CIRCUIT!!! Step 3: Insert the top plastic housing and locking by L hex key ATTENTION:When reinstalling the cover, pay attention to put the PCB edge into the middle slot of the box inside as shown below) 8. Troubleshooting No. Phenomena Reason Solutions 1 Node does not send RF to base station periodically, LED does not blink No power supply or battery ran out Configuration sending cycle is incorrect Check that the battery is empty or not installed correctly Check the power supply Check the send cycle configuration 2 Node does not send RF to base station according to the alarm, LED does not blink The alarm configuration is incorrect Running out of the number of alarms set for the day Check alarm configuration Check the configuration for the maximum number of alarms per day 3 Node does not send RF to base station when activated by the magnetic switch, LED does not blink Magnetic switch has malfunctioned Or place the Magnet key not right position Locate the correct position for magnet key Read the status of the magnetic switch via modbus (when powering or attaching the battery) to see if the magnetic switch is working. 4 Node has blinked LED when sending RF but the base station cannot received Out of the number of RF packages of uplink per day (140 packages / day) Check on the base station whether the event message exceeds the number of RF packets 5 Node has sent RF but the LED does not blink LED malfunction Contact manufacturer 6 The measurement values from sensor do not change, keep constant values for long time Sensor got failure Sensor cable broken Sensor connector is not connected firmly Check sensor cable and connector If the issue is still exist, please contact manufacturer for warranty or replace new sensor 7 The node does not send RF and the RF module is hot Insert the battery in the wrong direction Electronics got problem Check battery polarity 8 RSSI is weak and often loses data Distance between Node and Base station is far or there are many obstructions Connection to Antenna problem Check location of Sigfox node and distance to base station Check the antenna connector in the PCB 9. Support contacts Manufacturer Daviteq Technologies IncNo.11 Street 2G, Nam Hung Vuong Res., An Lac Ward, Binh Tan Dist., Ho Chi Minh City, Vietnam.Tel: +84-28-6268.2523/4 (ext.122) Email: info@daviteq.com | www.daviteq.com Distributor in Australia and New Zealand Templogger Pty Ltd Tel: 1800 LOGGER Email: contact@templogger.net