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17

UMG 509

m

•  If installed in a building, a disconnector 

or circuit breaker must be provided for 
the supply voltage. 

•  The disconnector must be installed 

near the device and easily accessible 
to the user.

•  The switch must be marked as the circuit 

breaker for this device.

•  Voltages which are over the permitted 

voltage range can destroy the device.

c

Please note!

The inputs for the supply voltage are 
hazardous if touched! 

c

Please note!

Make sure to observe the specifications 
for the supply voltage that are provided 
on the rating plate of the UMG 509.

Summary of Contents for UMG 509

Page 1: ...UMG 509 Operation manual and technical data Part no 33 03 194 Janitza electronics GmbH Vor dem Polst ck 1 D 35633 Lahnau Support Tel 0049 6441 9642 22 Fax 0049 6441 9642 30 e mail info janitza com We...

Page 2: ...Frequency measurement 83 Direction of the rotating field 83 Applying the measuring circuit voltage 84 Table of contents General information 4 Inspection on receipt 7 Scope of delivery UMG 509 8 Avail...

Page 3: ...terface 90 Profibus 92 Digital in outputs 96 Service and maintenance 102 Service 102 Device calibration 102 Calibration intervals 102 Firmware update 103 Battery 103 Technical data 106 Function parame...

Page 4: ...oduced in whole or in part by mechanical or electronic means nor otherwise duplicated or republished without the binding written permission of Janitza electronics GmbH Vor dem Polst ck 1 D 35633 Lahna...

Page 5: ...se note Please pay attention to the documentation This symbol is intended to warn you of potential dangers which could occur during installation commissioning and use C Note Ground wire connection Ind...

Page 6: ...the product and thus excludes the warranty for covering possible damage resulting from this This device must only be operated and repaired by specialised personnel Specialised personnel are persons t...

Page 7: ...to operation again Packing and unpacking must be carried out with customary care without the use of force and only using suitable tools The devices should be visually checked for flawless mechanical c...

Page 8: ...minal pluggable 8 pole current measurement 1 4 1 10 01 873 Screw type terminal pluggable 6 pole digital inputs outputs 1 10 01 888 Screw type terminal pluggable 7 pole RCM thermistor input 1 10 01 859...

Page 9: ...rmers The measurement results can be displayed saved and read out and further processed via the interfaces Ethernet Modbus Profibus The UMG 509 can be used in industrial and domestic settings By conti...

Page 10: ...temperature range 10 C 55 C Measurement Measurement in TN and TT networks Continuous sampling of the voltage and current measurement inputs at 20 kHz Acquisition of transients 50 s and storage of up t...

Page 11: ...s list The list can be called up via the device s home page and can be found on the enclosed CD This operation manual only describes how to operate the UMG 509 using the buttons The GridVis programmin...

Page 12: ...Connection of a UMG 96RM via a UMG 509 as a gateway gedrehtes Patchkabel UMG 509 Direct connection of a UMG 509 to a PC via Ethernet Connection of a UMG 509 to a PC via Ethernet gedrehtes Patchkabel U...

Page 13: ...Mounting position To ensure adequate ventilation the UMG 509 must be installed vertically There should be separation above and below of at least 50mm with 20mm space to the sides Front panel section C...

Page 14: ...e Ethernet cable and connector type you must install a connection area below the UMG 509 The connection area below the UMG 509 should not be smaller than 50 mm Mounting The UMG 509 is mounted in the s...

Page 15: ...15 UMG 509...

Page 16: ...ar side of the device via terminal blocks Before connecting the supply voltage ensure that the voltage and frequency correspond to the details on the rating plate The supply voltage must be connected...

Page 17: ...sily accessible to the user The switch must be marked as the circuit breaker for this device Voltages which are over the permitted voltage range can destroy the device c Please note The inputs for the...

Page 18: ...o the housing potential is measured and the input impedance of the device creates residual current against the earth The residual current can trigger the insulation monitoring in IT networks The conne...

Page 19: ...V 208V 127V 220V 220V 380V 230V 400V 240V 415V 260V 440V 277V 480V 347V 600V 400V 690V 417V 720V Maximum system rated voltage Fig Table for network rated voltages i a w EN60664 1 2003 suitable for the...

Page 20: ...he mains frequency for the measurement and calculation of measured values The UMG 509 is suitable for measurements in networks whose mains frequency is in the range 40Hz to 70Hz For measurement with t...

Page 21: ...ercurrent protection must have a rated value which is suitable for the short circuit current at the connection point Measured voltages and measured currents must derive from the same network c Please...

Page 22: ...V4 Vref 3p 4wu L1 L2 L3 N V1 V2 V3 V4 Vref 3p 4w L1 L2 V1 V2 V3 V4 Vref 1p 2w L1 L2 L3 V1 V2 V3 V4 Vref p 3wu L1 L2 L3 N V1 V2 V3 V4 Vref 3p 4wu L1 L2 L3 N V1 V2 V3 V4 Vref 3p 4w L1 L2 V1 V2 V3 V4 Vre...

Page 23: ...3 V1 V2 V3 V4 Vref 3p 3w L L L L V1 V2 V3 V4 Vref 3p 5w N V1 V2 V3 V4 Vref 3p 4wu L1 L2 V1 V2 V3 V4 Vref 1p 2w L1 L2 L3 3p 2i0 I1 I2 I3 I4 S1 S2 S1 S2 S1 S2 S1 S2 3p 4w I1 I2 I3 I4 L L L L N 3p 5w I1...

Page 24: ...2 I3 I4 S1 S2 S1 S2 S1 S2 S1 S2 I1 I2 I3 I4 S1 S2 S1 S2 S1 S2 S1 S2 I1 I2 I3 I4 S1 S2 S1 S2 S1 S2 S1 S2 L1 L2 L3 N 3p 4w I1 I2 I3 I4 S1 S2 S1 S2 S1 S2 S1 S2 L L L L L1 L2 L3 N 3p 2i L1 L2 1p 2i I1 I2...

Page 25: ...25 UMG 509 3p 2i0 1p 2i I1 I2 I3 I4 S1 S2 S1 S2 S1 S2 S1 S2 I1 I2 I3 I4 S1 S2 S1 S2 S1 S2 S1 S2 L L L L N 3p 5w I1 I2 I3 I4 S1 S2 S1 S2 S1 S2 S1 S2...

Page 26: ...3 conductor network the supporting measurement input V4 can no longer be used as a measurement input m For measurement with the supporting measurement V4 a voltage must be connected to the baseline me...

Page 27: ...27 UMG 509...

Page 28: ...not Any of the current measurement inputs can be loaded with 120A for 1 second Fig Current measurement I1 I3 via current transformers connection example S1 S2 L1 N PE L3 L2 S1 S2 S1 S2 S1 S2 Load c Pl...

Page 29: ...ers the winding insulation is rated such that the current transformer can be driven open However even these current transformers are dangerous to touch when they are driven open circuit c Current tran...

Page 30: ...S1 P1 P2 Einspeisung 1 Supply 1 Einspeisung 2 Supply 2 1P1 1P2 K L k l 1S2 1S1 1S1 1S2 2S1 2S2 2S1 2S2 k l K L 2P1 2P2 Verbraucher A Consumer A Verbraucher B Consumer B Example The current is measured...

Page 31: ...T III and three phase 3 conductor systems with nominal network voltages up to 277V 300V CAT III according to UL 480V 300V CAT III Since the UMG 509 does not feature any integrated protection for the c...

Page 32: ...transformers with a rated current of 30 mA is performed via the residual current transformer inputs I5 terminals 4 5 and I6 terminals 6 7 C Residual current transformer ratio The GridVis software incl...

Page 33: ...esidual current transformer A residual current transformer should measure on isolated mains cables within a 300V CAT III network Remedy The insulation of the mains cables and the insulation of the res...

Page 34: ...I3 L1 L2 L3 PEN N PE UMG 509 M 3 I5 I6 I4 Residual current transformers Residual current transformer Fig Example UMG 509 with residual current monitoring via measuring inputs I5 I6 Connection example...

Page 35: ...through 10 Do not exceed the total resistance load sensor cable of 4kOhm PT100 GND VCC 10 9 8 UMG 512 Fig Example temperature measurement with a PT100 m Please note Profibus RS485 and the thermistor i...

Page 36: ...ct Incorrect Termination resistors The cable is terminated with resistors 120Ohm 1 4W at the beginning and at the end of a segment Termination within the device is possible via the S1 DIP switch of th...

Page 37: ...uld be used for connections via the RS485 interface Earth the screens of all cables that lead to the cabinet and at the cabinet entry Connect the screens over a generous area and in a manner that will...

Page 38: ...Li2YCY TP 2x2x0 22 from Lapp Kabel Unitronic BUS L2 FIP 1x2x0 64 from Lapp Kabel Maximum cable length 1200m at a baud rate of 38 4k Fig Screening procedure at cabinet entry Cable Strain relief Screen...

Page 39: ...ividual segments Devices for which the bus connection is switched on must be under current It is recommended that the master be placed at the end of a segment If the master is replaced with a bus conn...

Page 40: ...tor e g type SUBCON Plus ProfiB AX SC from Phoenix item number 2744380 Janitza item no 13 10 539 C When using the device in a Profibus system the device address must be set using the configuration men...

Page 41: ...erminals 2A and 2B If there are no subsequent devices in the line then the bus wiring must be terminated with a resistor switch to ON With the switch set to ON terminals 2A and 2B are switched off for...

Page 42: ...twork through the patch cable m Please note Connection of the UMG 509 to the Ethernet may only be carried out after consulting the network administrator PC switch m Please note The UMG 509 is factory...

Page 43: ...couplers The digital outputs have a joint reference The digital outputs can switch AC and DC loads The digital outputs are not short circuit proof Connected cables that are longer than 30m must be shi...

Page 44: ...must have a max residual ripple of 5 C Functions for the digital outputs can be adjusted clearly in the GridVis software provided in the scope of delivery A connection between the UMG 509 and the PC...

Page 45: ...of at least 18V and maximum 28V DC typically at 4mA is applied There is no input signal for a voltage of 0 to 5V and a current less than 0 5 mA Fig Connection of digital outputs 24V DC S1 S2 External...

Page 46: ...ernal auxilliary voltage with an output voltage in the range 18 28V DC and a resistor of 1 5kOhm 14 15 16 2k21 2k21 2k21 2k21 2k21 Digital Input 1 Digital Input 2 UMG 509 Digital inputs 1 2 24V DC Ext...

Page 47: ...ting device settings Labelling of the Function keys Display title Measured values Function keys Meaning of the keys Key Function Returns to the first screen home Exits selection menu Selects number Se...

Page 48: ...ured value displays see page 120 123 By values Using the 3 and 4 keys you can select the by values of a measured value display see page 120 123 Display Voltage L L Display Communication Status Display...

Page 49: ...red value display contains the device names and an overview of important measured values In it delivery condition the unit name consists of the device type and the serial number of the device Using th...

Page 50: ...the main values Using the 1 home function key you always navigate to the first measured value display You would like to switch to a measured value display with by values Select the measured value disp...

Page 51: ...sured value selection using the 6 key select The background colours for the measured value switches from grey to green The additional information is displayed in blue window Using the 2 and 5 keys sel...

Page 52: ...displayed in blue window Using the 2 and 5 keys select the desired minimum or maximum value The time along with the date and time of the occurrence are displayed as additional information Using the 6...

Page 53: ...ing the 4 key Navigate to the transients list using key 6 select and select a transient using the 3 or 4 keys Using the 6 key select have a transient displayed in a graph Show or hide the legend using...

Page 54: ...2 and 5 keys scroll to the Event main value display Select the desired page using the 4 key Navigate to the event list using key 6 select and select an event using the 3 or 4 keys Using the 6 key sel...

Page 55: ...oltage a start display appears Approximately ten seconds later the UMG 509 switches to the first Home measured value display If no display appears check whether the applied supply voltage is within th...

Page 56: ...ration menu Using the 3 or 4 keys you select the desired submenu that can be activated using the 6 key enter Language You can set the language for the measured value displays and menus directly in the...

Page 57: ...straightforward networks without DHCP servers BOOTP BootP enables the fully automatic integration of a UMG 509 into an existing network However BootP is an older protocol and does not provide the scop...

Page 58: ...rresponding field can be selected via the keys 3 or 4 green marking Key 6 enter provides you with access the selection options which can then be selected with key 3 or 4 Pressing the 6 key enter again...

Page 59: ...59 UMG 509 Measurement Configure the following here The measuring transducer for the current and voltage measurement Recording transients Recording events The mains frequency Temperature sensor...

Page 60: ...hen measuring currents directly Setting range Primary 1 to 999999 Secondary 1 to 5 Factory default setting Primary 5 Secondary 5 Rated current The rated current defines the value to which Overcurrent...

Page 61: ...an be used for the measurement in the neutral conductor for example 3p2i 3 phases 4 conductors 2 current transformers For networks with symmetrical loading 3p2i0 3 phases 3 conductors 2 current transf...

Page 62: ...ransformer Setting range Primary 1 to 999 999 V Secondary 1 to 999 V Factory default setting Primary 400 V Secondary 400 V Rated voltage The rated voltage defines the value to which Transients Events...

Page 63: ...out neutral conductor with symmetrical loading 3p3wu 3 phases 3 conductors For networks without neutral conductor with symmetrical loading 3p5w 3 phases 4 conductors Measurement at an additional outle...

Page 64: ...minal current and voltage can be set for each phase You can adopt these settings from phase L1 and apply them to phases L2 L3 and L4 with this function No The settings from phase L1 will not be applie...

Page 65: ...ust be set Setting range Primary 1 to 1000000 Secondary 1 Factory default setting Primary 5 Secondary 5 Monitoring Activates or deactivates the failure monitoring of the corresponding residual current...

Page 66: ...urement inputs for transients The transient monitoring can be adjusted for each phase There are two independent criteria by which transients are detected If a transient has been detected the wave form...

Page 67: ...points exceeds the set threshold value a transient is detected Off Transient monitoring has been switched off Automatic Factory default setting The threshold value is calculated automatically and is...

Page 68: ...n event has occurred the corresponding measured value is recorded with the set pre run and after run periods respectively 0 1000 full waves Event records are configured with the GridVis and displayed...

Page 69: ...toring of events can be adjusted for each phase You can adopt these settings from phase L1 and apply them to phases L2 L3 and L4 No The settings from phase L1 will not be applied to phases L2 L3 and L...

Page 70: ...The mains frequency will be measured 50Hz The mains frequency is fixed at 50Hz The mains frequency will not be measured 60Hz The mains frequency is fixed at 60Hz The mains frequency will not be measu...

Page 71: ...71 UMG 509 Temperature When using a temperature measurement the corresponding sensor type must be selected from a predefined list PT100 PT1000 KTY83 KTY84...

Page 72: ...al number of the device Fixed MAC address of the device Set IP address Set gateway address Date and time Set password Reset settings C You cannot configure the date and time directly on the device You...

Page 73: ...as already been set you must know the current password Note down the changed password When selecting the Password green marking the password can be changed using the 6 key enter and keys 2 to 5 Pressi...

Page 74: ...g the Reset key Some specific energy meters cannot be selected Highlight the Clear energy button green marking and enable the deletion process using the key 6 enter Select Yes with the 4 key Confirm t...

Page 75: ...max values Highlight the Min max values item green marking and enable the clear process using the key 6 enter Select Yes with the 4 key Confirm the selection using the 6 key The Carried out message a...

Page 76: ...ings or deleted Entered activation codes are not deleted Select Yes with the 4 key Confirm using the 6 key The Carried out message appears in the line the delivery status is restored Re initialisation...

Page 77: ...witches to the Standby brightness Setting range 60 to 9999 sec Factory default setting 900 sec Brightness standby Brightness level the system switches to after the standby time expires The standby tim...

Page 78: ...re automatically shown one after the other This does not affect the displays of the configuration Setting range Yes no Factory default setting No Rotation interval Here you can set the time after whic...

Page 79: ...displaying the current and voltage in the graphic representations Using the keys 3 or 4 select the desired coloured field Confirm the selection using the 6 key Using the keys 3 or 4 select the desire...

Page 80: ...hat are subject to purchase and can be subsequently activated List of the functions that can be activated BACnet You receive the activation codes from the manufacturer The manufacturer requires the se...

Page 81: ...tus Up to 7 customer specific Jasic programs 1 7 and a recording can run in the UMG 509 The Jasic programs can have the following statuses Stopped Running You cannot change the status of the Jasic pro...

Page 82: ...tage The supply voltage level for the UMG 509 is specified on the rating plate After connecting the supply voltage a display appears Approximately 15 seconds later the UMG 509 switches to the first me...

Page 83: ...nt inputs The mains frequency must be in the range from 40Hz to 70Hz If there is no sufficiently high measured voltage available the UMG 509 cannot determine the mains frequency and thus cannot perfor...

Page 84: ...e current displayed by the UMG 509 must correspond with the input current The UMG 509 must display approx zero amperes in the short circuited current measurement inputs The current transformer ratio i...

Page 85: ...to the correct voltage measurement input In the current measurement considered here the k and l connections are reversed or there is a return feed in the mains power supply Voltage and current only h...

Page 86: ...g is performed using the corresponding menu item or by setting address 18895 for the residual current measurement input I5 and 18897 for I6 If there is an interruption in the connection to the current...

Page 87: ...or connection error to the transformer The alarm bit must be reset or acknowledged manually Failure monitoring There is a connection error to the transformer Example Interruption of the connection to...

Page 88: ...amount is correct but the sign of the power output is negative S1 k and S2 l could be inverted at the current transformer or they supply effective power back into the network Checking the communicatio...

Page 89: ...dged The measurement range is exceeded if at least one of the four voltage or current measurement inputs lies outside their specified measuring range Threshold values for exceeding the measurement ran...

Page 90: ...multiple coils 16 10Hex Preset multiple registers 23 17Hex Read write 4X registers Modbus functions slave 03 Read holding registers 04 Read input registers 06 Preset single register 16 10Hex Preset m...

Page 91: ...appears as follows Name Hex Note Device address 01 UMG 509 address 1 Function 03 Read Holding Reg Start Addr Hi 4A 19000dez 4A38hex Start Addr Lo 38 Ind Value Hi 00 2dez 0002hex Ind Value Lo 02 Error...

Page 92: ...re variables that are defined by the user in Jasic and are available to each interface in the UMG 509 Profibus Profibus profiles A Profibus profile contains the data to be exchanged between a UMG and...

Page 93: ...ram is not required Fig Block diagram for data exchange between PLC and UMG 509 PLC PLC process output box 1 Byte Profile number 0 to 15 2 Byte Data to the UMG 509 PLC process input box 1 Byte Return...

Page 94: ...L1 L4 Float 1 28 109 THD voltage L1 Float 1 29 113 THD voltage L2 Float 1 30 117 THD voltage L3 Float 1 Factory pre configured profiles Profibus profile number 1 Byte index Value type Value format Sca...

Page 95: ...ive energy L3 Float 1 Profibus profile number 3 Byte index Value type Value format Scaling 1 1 Effective power L1 Float 1 2 5 Effective power L2 Float 1 3 9 Effective power L3 Float 1 4 13 Effective p...

Page 96: ...an be configured using the GridVis software included in the scope of delivery The settings of the functions in the configuration menu must be made using the GridVis software Fig GridVis software confi...

Page 97: ...a pulse of defined length is applied on the output after reaching a certain adjustable amount of power You need to make various adjustments in the configuration menu using the GridVis software to use...

Page 98: ...m pulse length and the minimum pulse interval for the maximum number of pulses per hour Examples of the maximum possible number of pulses per hour Pulse length Pulse interval Max pulse h 10 ms 10 ms 1...

Page 99: ...only be emitted when the measured value has a positive sign If you check the pulse value with a negative sign the pulses will only be produced when the measured value has a negative sign C Since the...

Page 100: ...Voltage L N max 300 V Power per phase 150 A x 300 V 45 kW Power at 3 phases 45kW x 3 Max connected load 135kW Calculating the pulse value Fig Connection example for the circuit as pulse output 230V A...

Page 101: ...101 UMG 509...

Page 102: ...e legal provisions The permanently installed lithium battery must be disposed of separately Service Should questions arise which are not described in this manual please contact the manufacturer direct...

Page 103: ...erature of 45 C The typical life expectancy of the battery is 8 to 10 years The battery type CR2450 3V can be replaced by the user Firmware update If the device is connected to a computer via Ethernet...

Page 104: ...fell short of Install current transformer with a smaller current transformer ratio Voltage displayed is too large or too small Measurement in the wrong phase Check connection and correct if necessary...

Page 105: ...verload Voltage and current measurement input outside the measurement range See section Measurement range exceeded Check connection and correct if necessary Use suitable voltage and current transforme...

Page 106: ...erature K55 25 C to 70 C Relative humidity 5 to 90 RH Ambient conditions during operation The UMG 509 is intended for weather protected stationary use The UMG 509 must be connected to the protective c...

Page 107: ...onductors Only one conductor can be connected per terminal Single core multi core fine stranded 0 2 2 5mm2 AWG 24 12 Terminal pins core end sheath 0 25 2 5mm2 Tightening torque 0 5 0 6Nm Stripping len...

Page 108: ...rms Resolution 0 01V Crest factor 1 6 related to 600Vrms Impedance 4MOhm phase Power consumption approx 0 1VA Sampling rate 20kHz phase Transients 50 s Frequency range of the fundamental oscillation R...

Page 109: ...tic sleeve 0 20 1 5mm2 Stripping length 7mm Tightening torque 0 20 0 25Nm Cable length up to 30m unshielded from 30m shielded Residual current monitoring RCM Rated current 30mArms Metering range 0 to...

Page 110: ...ange Resistor range Measurement uncertainty KTY83 55 C to 175 C 500Ohm to 2 6kOhm 1 5 rng KTY84 40 C to 300 C 350Ohm to 2 6kOhm 1 5 rng PT100 99 C to 500 C 60Ohm to 180Ohm 1 5 rng PT1000 99 C to 500 C...

Page 111: ...upply voltage 20V 30V DC SELV or PELV supply Switching voltage max 60V DC 30V AC Switching current max 50mAeff AC DC Response time Jasic program 200ms Output of voltage dips 20ms Output of voltage exc...

Page 112: ...6kbps Termination resistor Can be activated by micro switch Profibus interface Connection SUB D 9 pole Protocol Profibus DP V0 as per EN 50170 Transmission rate 9 6k baud to 12 MBaud Ethernet interfac...

Page 113: ...113 UMG 509...

Page 114: ...s 0 A to 9999 kA Measured neutral conductor current IN 0 2 IEC61557 12 0 001 to 7 Arms 0 A to 9999 kA Residual currents I5 I6 IDIFF 1 IEC61557 12 0 to 40 mArms 0 A to 9999 kA Computed neutral conducto...

Page 115: ...4 THD Ri 1 0 IEC61557 12 up to 2 5 kHz 0 to 999 Mains signal voltage interharmonics voltage MSV Declarations 1 In relation to the amplitude 2 In relation to phase and amplitude 3 In relation to funda...

Page 116: ...nsients IEC EN 61000 4 5 2007 Surge voltages IEC EN 61000 4 6 2009 Immunity to conducted disturbances induced by radio frequency fields 0 15 80MHz IEC EN 61000 4 8 2010 Power frequency magnetic fields...

Page 117: ...117 UMG 509...

Page 118: ...118 UMG 509 Dimension diagrams Cut out size 138 0 8 x 138 0 8 mm Rear side Patch cable...

Page 119: ...119 UMG 509 Side view View from below...

Page 120: ...transducer Transients Events Nominal frequency Thermistor input System information Reset password Display Colours U I L1 L4 Extensions Activation Jasic status Measuring transducer Phase L1 L2 L3 L4 I...

Page 121: ...values Voltage L N Current L1 to L4 Voltage L L Current Sum Main values Apparent power Overview By values Effective power Overview Tariff 1 tariff 2 Reactive power Overview Tariff 1 tariff 2 Sum Powe...

Page 122: ...e power progression L1 L2 L3 L4 L1 to L3 L1 to L4 Reactive power progression L1 L2 L3 L4 L1 to L3 L1 to L4 Current progression L1 L2 L3 L4 Voltage progression L1 L2 L3 L4 Harmonic Voltage L1 L2 L3 L4...

Page 123: ...123 UMG 509 Phasor diagram Oscilloscope L1 Communication status Oscilloscope L2 L3 L4 Oscilloscope ULN1 to 3 ULN1 to 4 Oscilloscope IL1 to 3 IL1 to 4 Main values By values...

Page 124: ...1 S2 S1 S1 S2 S2 S1 S2 S1 S2 I1 19 20 S1 S2 I2 21 22 S1 S2 I3 23 24 S1 S2 I4 25 26 VN 31 L3 Hilfsenergie Auxiliary Supply 17 18 L N PE Verbraucher Loads PE N L1 RS485 B 8 9 10 Temp PT100 IPE IDIFF 0 3...

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