Operating Manual

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Summary of content (63 pages)

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Operating Manual IRS31Pro-UMB © G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany. Subject to change without notice.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Contents 1 Please Read Before Use ............................................................................................................................................ 5 1.1 Symbols Used ..................................................................................................................................................... 5 1.2 Safety Instructions ...............................................................................................
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IRS31Pro-UMB Operating Manual V10 / 01.2020 16.2 Outside the EU.................................................................................................................................................. 43 17 Repair / Corrective Maintenance ............................................................................................................................. 43 17.1 Technical Support ..............................................................................................................
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IRS31Pro-UMB 1 Operating Manual V10 / 01.2020 Please Read Before Use Please read this Operating Manual completely before commissioning the equipment and keep it handy for future reference. Please note that various components of the sensor and the described software may look somewhat different from those shown in the illustrations in this operating manual. This manual is valid for the IRS31Pro-UMB from device version 8 (from February 2014).
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IRS31Pro-UMB 2 Operating Manual V10 / 01.2020 Scope of Delivery The content of the delivery consists of the following components:  Sensor IRS31Pro-UMB  Installation aid  Installation instructions  Transport packaging G.
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IRS31Pro-UMB 3 Operating Manual V10 / 01.2020 Order Numbers Standard version IRS31Pro-UMB .......... 50 m cable length .............................................................. ……. 8910.U050 IRS31Pro-UMB .......... 50 m cable length, 1 below-ground temperature sensor ........... 8910.U051 IRS31Pro-UMB .......... 50 m cable length, 2 below-ground temperature sensors ......... 8910.U052 IRS31Pro-UMB .......... 100 m cable length .................................................. …………….. 8910.
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IRS31Pro-UMB 4 Operating Manual V10 / 01.2020 Equipment Description Depending on the requirements of the road traffic meteorological monitoring network, sensors are installed in the roadways and / or "overhead". The Lufft IRS31Pro-UMB is intended for installation in the roadway.
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IRS31Pro-UMB 5 Operating Manual V10 / 01.2020 Generation of Measurements It is recommended to query the average channels. The measured values of the TLS-channels are based on the configured averaging. 5.1 Current Measurement (act) The value of the last measurement is transmitted when the current measurement value is requested. 5.2 Average Value (avg) The number of measurements that are included in the moving average can be configured between 1 and 20.
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IRS31Pro-UMB 6 Operating Manual V10 / 01.2020 Transmission of Measurements The factory default setting for the transmission of measurements is UMB binary protocol. You can find an example of a measurement request for the various protocols and a complete summary of the list of channels (including TLS channels) in the Appendix. 6.1 Measurements 6.1.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 6.1.6 Freezing Temperature MgCl21 Sampling rate: see section 5.3 Units: normalized, °C; °F Request channels: UMB Channel act min Measuring Range max avg Measured Value 170 175 Freezing temp. MgCl2 171 176 Freezing temp. MgCl2 172 177 Freezing temp. MgCl2 Data Type min max Unit uint16 0 65520 norm value float32 -40.0 0.0 °C float32 -40.0 32.0 °F 6.1.7 Freezing Temperature CaCl21 Sampling rate: see section 5.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Units: Request channels: none UMB Channel act min Measuring Range max 820 avg Measured Value Data Type min max 825 Friction float32 0.0 1.0 Unit 6.1.12 Saline Concentration MgCl2 2 Sampling rate: see section 5.3 Units: normalized, % percentage by weight, g/m2, lbs. p. l. mile Request channels: UMB Channel act min Measuring Range max avg Measured Value Data Type min max Unit 830 835 Saline concent.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Figure 3: Set Moist / Wet Thresholds 6.1.15 State of Coupling Sampling rate: see section 5.3 Units: none Request channels: UMB Channel act min max Measuring Range avg 950 Measured Value Data Type min max State of coupling uint8 0 99 Measured Value Data Type min max Measurement counter uint16 0 65520 Unit 6.1.16 Measurement Counter Sampling rate: see section 5.
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IRS31Pro-UMB 7 Operating Manual V10 / 01.2020 Installation The road sensor must be installed in the centre of the road lane. On two lane carriageways installation takes place in the left-hand lane. 7.1 Preparation A drill hole of diameter > 16 cm and depth 6 cm is required for inserting the sensor. For the connection cable, a slot of width 2 cm and depth 5 cm is cut into the road surface. Attention! Be careful not to damage the insulation layer when working on bridges.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 7.2.1 Extending the Supply Cable (e.g. 100 m) Important: The original cable must be shortened after the shortest possible distance (curbside 5 m) and extended from there. The loop impedance of the entire cable must not exceed 10 Ω. Figure 4: Cable Extension Example: Extension to 100 m with a 0.5 mm² cable with loop impedance of 73.2 Ω/km and parallel connection of 4 wires in each case: At 100 m the result per wire is a loop impedance of 7.3 Ω.
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IRS31Pro-UMB 7.2.1.1 Operating Manual V10 / 01.2020 Extension Table for IRS31Pro-UMB Passive Road Sensor Total Distance RS485 Terminator Required IRS31ProUMB Original Cable Extension Cable A-2ZF(L)2Z Nx2x0.8 Wire Range 0.5mm2 0.8mm2 Power Supply Wire Bundle Total Wire Pairs [m] max.
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IRS31Pro-UMB Figure 6: Example of a Standard Lufft UMB Control Cabinet Operating Manual V10 / 01.2020 Figure 7: Examples of the Earthing of the Cable Screening The sensors are delivered with two different cables: color coded or numerically coded. Connection of the road sensor supply lead: 1 ............. white ................ negative power supply 2 ............. brown............... positive power supply 3 ............. green ............... RS485_A 4 ............. yellow ..............
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IRS31Pro-UMB Operating Manual V10 / 01.2020 7.3.1 Cable Connection for SDI12 Operation There are two options to connect the sensor to a SDI12 logger: Connecting the road sensor with power supply by the SDI12 bus 1 ............. white ................ SDI12 GND 2 ............. brown............... SDI12 +12V 3 ............. green ............... not connected 4 ............. yellow ..............
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Figure 9: IRS31Pro-UMB Installation in the Road with 2 External Temperature Sensors G.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Figure 10: Installing the IRS31Pro-UMB 7.4 Use of Surge Protection (8379.USP) When using surge protection (order no.: 8379.USP), please note the connection example in the operating instructions for surge protection. G.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 7.5 Commissioning and Testing Once the device has been properly installed and connected to the permissible supply voltage, initialization takes place and measuring begins. After successful installation of the road sensor, its correct functioning must be checked. To do this, connect the sensor to an evaluation device. Check that communication between the sensor and the evaluation unit is working properly.
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IRS31Pro-UMB 8 Operating Manual V10 / 01.2020 Maintenance The road sensor should be serviced annually. This includes the visual inspection of the housing. It is recommended to clean the sensor surface when very dirty. Cleaning should be done with a cloth. As a cleaning agent isopropanol may be used. Note: In no case, the electrodes may be processed with sandpaper or wire brush.
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IRS31Pro-UMB 9 Operating Manual V10 / 01.2020 Connections 9.1 Supply Cable See section 7.3 Connecting the Supply Cable 9.1.1.1 Power Supply The IRS31Pro-UMB is supplied by a voltage of 12 VDC. The power supply unit used must be approved to operate devices of protection class III (SELV). 9.1.1.2 RS485 Interface or SDI12 The device has a half-duplex 2 wire RS485 interface with the following settings: Data bits:.......... 8 Stop bit............. 1 Parity................
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Pin assignment external temperature sensors (coding Pin1): 1 ....... white ........ ext. temperature right 1 2 ....... brown ....... ext. temperature right 2 3 ....... white ........ ext. temperature left 1 4 ....... brown ....... ext. temperature left 2 The cable markings are based on DIN 47100. G.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 10 Configuration and Testing Lufft provides PC software for configuration purposes. With the aid of this software the device can be adjusted in accordance with the user's requirements. 10.1 Factory Settings The IRS31Pro-UMB is delivered with the following settings: Class ID: ......................................... 9 (cannot be modified) Device ID: ....................................... 1 (gives address 9001h = 36865d) Baud rate: ..............................
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IRS31Pro-UMB Operating Manual V10 / 01.2020 10.2.3 General Settings Figure 12: Sensor Configuration – General Settings ID: Description: Baud rate: Device ID (factory setting 1; assign device IDs to additional devices in ascending order) In order to differentiate the devices you can enter a description here, e.g. location. Transmission speed of the RS485 interface (factory setting 19200; DO NOT CHANGE for operation with ISOCON-UMB).
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Swap channel assignment of external temperature sensors: IRS31 compatibility mode: Freezing temperature correction factor: Freezing temperature mode: (Factory setting: 6) This option is used to swap the assignment of the external temperature sensors. switches the Sensor into compatibility mode to IRS31-UMB. The setting compatibility mode to IRS31-UMB changes the class ID of the sensor to the class ID of an IRS31-UMB.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Figure 14: Sensor Configuration: Setting Thresholds Threshold [°C] for critical road conditions: Threshold temperature for determining freezing temperature [°C]: Deicer Threshold [µm] dry-moist: Threshold [µm] moist-wet: Threshold TLS[µm] dry-wet: Critical road conditions such as ice, wet / moist with salt can occur below this threshold.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Figure 15: Sensor Configuration: Coupling of IRS31Pro-UMB with ARS31 Coupling with the ARS31Pro-UMB see chapter 12. 10.2.5 Measurement Polling Channels Each channel can be enabled for measurement polling by clicking the respective channel. Figure 16: Select the Channels for Measurement Polling 10.2.6 Firmware Update Firmware updates can only be made in the factory setting of the baud rate (19200 BD).
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Figure 17: Operating instructions UMB-Config-Tool 10.3 Function Test with the UMB Config Tool The function of the sensor can be tested with the UMB Config Tool by polling various channels. Note: All other devices which are used in the polling process, e.g. modems, LCOM etc., must be disconnected from the UMB network during the function test. 10.3.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Note: The UMB Config Tool is provided for test and configuration purposes only. It is not suitable for the permanent acquisition of measurement data. We recommend the use of professional software solutions for this purpose, e.g. SmartView3. G.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 11 IRS31-UMB Compatibility mode The compatibility mode to the IRS31-UMB allows:  the addressing of the sensor with the class ID of an IRS31-UMB  the query of measurement channels of an IRS31-UMB  the query of IRS31 encoded road conditions 11.1 Important notes for using Sensor in compatibility mode  When an IRS31Pro-UMB is set to IRS31-UMB compatibility mode, you have to add an IRS31-UMB to your measurement setup to configure or test the sensor.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 The road sensor detects the conditions “dry”, “damp” and “wet” above this limit (factory setting 1,5 °C). Below this limit, there are, in addition, the conditions of “freezing wet” and “critical“ (Figure 21). For other device settings see chapter 10.2.4 Figure 21: Model parameters 11.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 11.5 Overview channel list of an IRS31-UMB (IRS31Pro-UMB in IRS31-UMB compatibility mode) The channel assignment applies to online data requests in UMB protocol. The data types used are described in section 6.1.1 The change between average value and current measurement is done on an IRS31-UMB with the sensor configuration.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 950 0: Off 1: On, freezing temperature of an ARS31(Pro)-UMB received 2: On, freezing temperature of an ARS31(Pro)-UMB not received State of coupling uint8 Supply Voltage float32 0 18,05 V resistive_avg float32 0 1.0E12 Ohm Supply Voltage 10000 Resistance 32210 The following channels are available specifically for data requests for further processing in TLS format. These channels are available in binary protocol only.
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IRS31Pro-UMB 72 73 1072 1073 Operating Manual V10 / 01.2020 Result message Water film height WFD 16 bit Result message Thawing material concentration 8 bit 0.00…10.00 mm 0…100 0.01 mm 1% TSK 74 1074 0 10.00 = 0d = 1000d = = 0000h 03E8h Error ( 65535d = FFFFh= 0 100 = = = 0d = 100d 00h 64h Error (255d = FFh) Result message Thawing material per square meter 8 bit 0…100 1g/m 2 TSQ 0 100 = 0d = 100d = = 00h 64h Error (255d = FFh) G.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 12 Coupling with ARS31/ARS31Pro-UMB When the coupling IRS31-ARS31 is active, the IRS31Pro-UMB uses the mixture independent freezing temperature reported by an ARS31(Pro)-UMB Sensor instead of its own for the calculations of road condition, ice percentage and friction. When the coupling is active the IRS31Pro-UMB delivers the status code 0x36h = 54d (channel_off) on every freezing temperature and salt concentration channel.
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IRS31Pro-UMB Value 0 Operating Manual V10 / 01.2020 Meaning The freezing temperature mode is off, the takeover of ARS31(Pro)-UMB freezing temperature is disabled in the sensor configuration of the IRS31Pro-UMB. 1 The freezing temperature mode is switched on, and in the IRS31Pro-UMB a valid freezing temperature of the configured ARS31(Pro)-UMB exists. 2 The freezing temperature mode is switched on, and in the IRS31Pro-UMB exists no valid freezing temperature of the configured ARS31(Pro)-UMB exists.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 13 Technical Data Power supply: Operating voltage range: 12 VDC 0.75 .. 1.15 * Power supply Current consumption: Typically approx. 8.5 mA (sampling rate 10 s) Typically approx. 5 mA (sampling rate 1 min.) at 12VDC Approx. 1A (5ms) at 12VDC Inrush current: Sensor dimensions: Protection class: Protection type: Height 50 mm  120 mm Approx.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Accuracy: (Wfh > 50µm): Sampling rate: Units: 0 °C to –2,5 °C, (+/-0,5 °C), otherwise +/-20% f. mv (with NaCl) Variable (10 sec….60 sec) °C; °F 13.1.4 Ice Percentage Measurement process: Measuring range: Resolution: Sampling rate: Units: Passive 0% … 100% 0.1% Variable (10 sec….60 sec) % 13.1.5 Saline Concentration Measurement process: Measuring range: Resolution: Accuracy: Sampling rate: Units: Passive 0% … 100% 0.
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IRS31Pro-UMB Operating Manual V10 / 01.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 15 Certifications Certifications for the IRS31-Pro are listed below. 15.1 CE The IRS31-PRO Sensor is in conformity with all relevant requirements of the RED Directive (2014/53/EU) and RoHS (2011/65/EU). This device is compliant with the following standards:     Safety: EN 62368 EMC: EN 301 489 SRD: EN 300 440 RoHS: EN 50581 A formal DoC is available from www.lufft.com 15.2 FCC This device complies with Part 15 of the FCC Rules.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Déclaration d'exposition aux RF Cet appareil est conforme aux limites d'exposition aux radiations ISDE définies pour un environnement non contrôlé car il répond aux 2.5.2 Limites d'exemption pour l'évaluation de routine - Évaluation de l'exposition RF pour mobile / fixe comme défini dans RSS-102. 16 Disposal 16.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 18 Appendix 18.1 Channel List Summary The channel assignment applies to online data requests in UMB protocol. The data types used are described in section Fehler! Verweisquelle konnte nicht gefunden werden. UMB Channel act min max Measuring Range avg Measurement Variable 100 105 Road temperature 101 106 Road temperature 102 107 Road temperature 110 115 111 112 Data Type min max Unit uint16 0 65520 norm value float32 -40.0 80.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 900 uint8 10 15 20 25 30 35 40 45 state of coupling uint8 0: Off 1: On, Freezing temperature of a ARS31(Pro)-UMB received 2: On, Freezing temperature of a ARS31(Pro)-UMB not received Measurement counter uint16 0 65520 resistive_avg float32 -1.0E15 1.0E15 905 road condition Dry Moist Wet Moist with salt Wet with salt Ice Snow Frost State of coupling 950 Measurement Counter 20001 Resistance 32210 ohm ¹ experimental implementation 18.
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IRS31Pro-UMB 70 Operating Manual V10 / 01.2020 1070 Result message Road surface condition FBZ 8 bit 0 Road is completely dry and free of snow and ice. 0 … 255 1 Road is moist or wet, or covered with ice or snow 32 Road is wet with liquid water / aqueous solution. 64 Road is fully or partially covered with frozen water / solid aqueous solution. 65 Road is covered with snow or slush. 66 Road is covered with ice (solid, frozen water and frozen aqueous solution). 67 Frost.
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IRS31Pro-UMB Operating Manual V10 / 01.
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IRS31Pro-UMB 1 01h 2 10h Operating Manual V10 / 01.2020 3 4 5 6 01h 90h 01h F0h 7 04h 8 02h 9 23h 10 10h 11 65h 12 00h 13 14 15 16 03h 85h DCh 04h The response from the device: SOH STX 1 2 3 4 5 6 7 8 9 10 11 12 13 14 01h 10h 01h F0h 01h 90h 0Ah 02h 23h 10h 00h 65h 00h 16h ETX EOT 15 16 17 18 19 20 21 22 ECh F2h C4h 41h 03h 24h 51h 04h Interpretation of the response: = 00h device o.k.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Example of request to 3 channels (101, 601 and 900): Request by UMB Config Tool: 01 10 01 90 01 F0 09 02 2F 10 03 65 00 59 02 84 03 03 D2 6C 04 Response from IRS31Pro-UMB sensor: 01 10 01 F0 01 90 1C 02 2F 10 00 03 08 00 65 00 16 ED 14 CF 41 08 00 59 02 16 80 E3 25 3F 05 00 84 03 10 0A 03 FC A2 04 18.4 Communication in ASCII Protocol Text-based communication with devices is possible using ASCII protocol.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 0d corresponds to -40°C 65520d corresponds to +80°C 34785d corresponds to [+80°C – (-40°C)] / 65520 * 34785 +(-40°C) = 23.7°C Note: TLS channels are not available in ASCII protocol. 18.4.4 Switch to Binary Protocol (X) Description: This command is used to switch temporarily into the binary mode.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Temperature Road surface temperature External temperatures Freezing temperature -40.0 80.0 -40.0 176.0 °C °F -40.0 80.0 °C -40.0 176.0 °F -40.0 0.0 °C -40.0 32.0 °F 0.0 10000.0 µm Water Film Height Water film height Percentage Ice percentage 0.0 100.0 % Saline concentration 0.0 100.0 % Friction 0.0 1.0 none 18.4.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 18.5 Communication in SDI12 Protocol The communication in the SDI-12 mode of the IRS31Pro-UMB is conforming to the standard defined in ‚SDI-12 A Serial-Digital Interface Standard for Microprocessor-Based Sensors Version 1.3 January 12, 2009‘ . The station may be operated in bus mode together with other SDI-12 sensors, connected to one SDI master (logger). 18.5.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 (*) Remark: The 5 seconds UMB communication are available from program start. Under consideration of the operating system start, where no communication is possible, the device will be ready for SDI12 requests after 7.0 – 7.5 seconds. 18.5.2 Command Set For details of the SDI-12 protocol please refer to the above mentioned standard document.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 18.5.3 Address Configuration UMB Device-ID and SDI-12 Address are connected, but the different address ranges and the fact, that UMB ID’s are integer numbers, while SDI-12 addresses are ASCII characters, have to be considered. The SDI-12 address is built from the UMB device ID as follows: UMB Device ID 1 (default) corresponds to SDI-12 Address ‘0’ (SDI-12 default). Changing the SDI12 address by SDI12 setting command also modifies the UMB device ID accordingly.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Example: C-Request from IRS31Pro-UMB 0C! 00010 0D0! 0+1.5+2.7+3.5-5.5+3.7 10 measurement values are available Road temperature 1.5°C, external temperature 1 2.7°C, external temperature 2 3.5°C, freezing temperature -5.5°C Salzkonzentration 3,7% 0D1! 0+183+0.0+0.78+15 Water film height 200um, ice percentage 0.0% friction 0.78, road condition 15 (moist) 0D2! 0+5.1 Saline concentration 5.1 g/m2 G.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 Buffer Assignment Basic Data Set The related UMB channel is shown for spot and average value: spot / average Device configured for measurement values in metric units: Measurement Value UMBChannel Min Max Unit Road Surface Temperature 101/106 -40.0 80.0 °C External Temperature 1 111/116 -40.0 80.0 °C External Temperature 2 121/126 -40.0 80.0 °C Freezing Temperature 151/156 -40.0 0.0 °C Saline Concentration 801/806 0.0 100.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 18.5.5 Message Device Identification The device responds to the identification request with following message (example for SDI-12 device address ‘0’: 0I! 013Lufft.deIRSxyznnn x: Metric / US units ( m = metric, u = US ) y: Spot value or average value (a = average, c = spot) z: Defrosting agent ( n = NaCl, m = MgCl2, c = CaCl2 ) ( optional, currently not yet available) nnn: Software version i.e. configured for US units, average, NaCl: 0I! 013Lufft.deIRSumn022 18.
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IRS31Pro-UMB Operating Manual V10 / 01.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 18.5.7 Message Change of Unit System The command is used to change the unit system used for the SDI12 data between metric and US units. It is implemented as manufacturer specific X command. Command: aXU! Response: aXU u: m: US units metric units Example: change to metric units, SDI-12 address ‘0’ 0XUm! 0XUm 18.5.8 Message Selection of Spot or Average Value The command is used to select average or spot value for transmission.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 18.5.11 Message: Setting of the Threshold for Critical Road Conditions The command sets the threshold of road surface temperature, below which critical road conditions are set. Command: aXT<+/->nn.n! nn.n: road surface temperature threshold in °C Response: aXT<+/->nn.n The response to the attempt of setting of an invalid value is aXTf Example: The threshold is set to -0.5°C 0XT-0.5! 0XT-0.5 18.5.
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IRS31Pro-UMB Operating Manual V10 / 01.2020 19 List of Figures Figure 1: Sensor ................................................................................................................................................................. 8 Figure 2: UMB Config Tool: Sensor Configuration / Sensor Settings Menu ....................................................................... 9 Figure 3: Set Moist / Wet Thresholds ....................................................................................
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IRS31Pro-UMB Operating Manual V10 / 01.2020 20 Index A M Accessories Accuracy Address, creating…example ASCII Protocol Average value 7 39 47 49 9 Binary Protocol Request, Example Binary-Protocol 47 46 B Maintenance Measurement Counter Measurements Measurements, generation of…. Measurements, transmission of....
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