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PiXtend eIO Hardware Manual

6.5.1.Analog Inputs

PiXtend eIO Analog One has four analog inputs for voltage measurements (AI0 - AI3) in
the ranges 0..5 V / 0..10 V and a further four for current measurements (AI4 - AI7) in the
range 0 (4) .. 20 mA.

Applications

–

Evaluation of industrial sensors with analog outputs

–

Detecting Potentiometer Positions (Knob)

–

Current and voltage measurements in the laboratory and in experimental setups

–

Voltage monitoring of batteries (for example in a robot application)

–

Current measurement with an external shunt (voltage at the resistor)

–

Evaluation of PT100 / 1000 sensors (with an external preamp)

–

Connection to the analog outputs of other control units

–

Lower / measuring input for current loop

–

Usable for active and passive sensors

The inputs are designed robust and withstand over-voltages of up to 30 V DC. By jumper,
the voltage ranges can be easily changed and adapted to the conditions.

Analog filter stages provide low-noise measurements with the 10-bit analog / digital
converter.

www.pixtend.com

Copyright by Qube Solutions GmbH

100 / 119

Figure 41: Terminal blocks - analog inputs

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Содержание PiXtend eIO Series

Страница 1: ...y Instructions Scope of Delivery Factory settings Installation Commissioning Technical Data Connection Notes Qube Solutions GmbH Arbachtalstr 6 D 72800 Eningen Germany https www pixtend com info pixte...

Страница 2: ...PiXtend eIO Hardware Manual Version History Version Date Description Editor 1 05 18 10 19 First publication TG www pixtend com Copyright by Qube Solutions GmbH 2 119...

Страница 3: ...4 4 1 PiXtend eIO Digital One Basic 25 4 2 PiXtend eIO Digital One Pro 26 4 3 PiXtend eIO Analog One Basic 27 4 4 PiXtend eIO Analog One Pro 28 4 5 Accessories 29 4 5 1 Cable Set without Termination 2...

Страница 4: ...rminal Blocks 74 6 2 3 Power Supply 75 6 2 4 LED Signaling 79 6 3 RS485 82 6 4 PiXtend eIO Digital One 88 6 4 1 Digital Inputs 89 6 4 2 Digital Outputs 94 6 5 PiXtend eIO Analog One 99 6 5 1 Analog In...

Страница 5: ...eIO devices of the following types PiXtend eIO Digital One Basic QS item 800 PiXtend eIO Digital One Pro QS item 801 PiXtend eIO Analog One Basic QS item 810 PiXtend eIO Analog One Pro QS item 811 Al...

Страница 6: ...atmel com or Microchip Technology Corporation www microchip com Debian and Raspbian are protected trademarks of the Debian Project www debian org I2C or I C are registered trademarks of NXP Semicondu...

Страница 7: ...formation to avoid malfunctions and accidental misuse Warning This symbol indicates a warning and can result in damage to property if not observed Danger This symbol indicates a high hazard which can...

Страница 8: ...sources Warning of Electrical Voltage Caution High Voltage This symbol indicates a warning of dangerous electrical voltages Non observance can result in damage to property and or personal injury incl...

Страница 9: ...ices A slave always only becomes active on the bus if it is addressed by a master ie it is requested to communicate A direct data transfer between the slaves does not take place Possible masters for t...

Страница 10: ...ercial educational and residential environments Intended uses are Machine plant and equipment construction Testers in production companys Laboratory and production automation Home Automation Smart Hom...

Страница 11: ...alog One All analog voltage inputs are configured for the 0 10 V range no jumper plugged in Address 3 baud rate 19 200 baud parity bit even stop bits 1 8E1 Termination inactive Mode Protocol Modbus RT...

Страница 12: ...non compliance with the information contained in the manuals and safety data sheets will lead to the loss of certification and approval for the European Economic Area WEEE Reg Nr DE 15868016 The symbo...

Страница 13: ...the legal requirements of the country in which PiXtend is used The device is only designed for use in dry and clean rooms and is not suitable for outdoor use or in damp areas The permissible operating...

Страница 14: ...ningen GERMANY How to reach us Fax 49 0 7121 2848662 info pixtend com www pixtend com 2 8 Assistance A lot of information tips and tricks can be found in our support forum at https www pixtend de foru...

Страница 15: ...he sub areas Power Supply page 16 Bus Topology Wiring page 19 Bus Lines page 22 are described in detail Especially if you have no or only little experience with RS485 bus systems the following informa...

Страница 16: ...upply or ground point with its own lines The conductor cross section especially of the ground lines should be much larger than the signal lines for the RS485 bus This has the background that the suppl...

Страница 17: ...ps on the lines especially when using small conductor cross sections and many devices The result may be that the required minimum voltage is no longer applied to a part of the modules and the devices...

Страница 18: ...the supply connections larger in case of doubt we recommend 0 75 or 1 00 mm Separate wiring of each module from the supply point ground point Supply of the digital outputs also with two lines and prov...

Страница 19: ...to a minimum and enables high transmission rates The recommended structure of the RS485 network with PiXtend eIO slaves and PiXtend V2 L master is shown in the following figure At the beginning and a...

Страница 20: ...interface is not suitable for such equipotential bonding Cables on these connections are only used to increase the immunity to interference and are optional not optional for Modbus Compensation curren...

Страница 21: ...star structures All devices on the bus network require a common ground reference Entrainment of GND 3 wire RS485 is mandatory with Modbus otherwise usually useful but not mandatory Termination resisto...

Страница 22: ...be found in chapter 6 3 from page 82 onwards A generally applicable solution for the shielding and wiring that is appropriate for every application is not possible At this point we only give tips and...

Страница 23: ...e recommended which can be purchased inexpensively from various manufacturers Summary Modbus compliant design At one point there must be a connection between GND of the devices and the protective cond...

Страница 24: ...only be touched at the edges of the printed circuit boards at mechanical screw connections or connectors Direct contact with electronic components and solder contacts soldering surfaces should be avoi...

Страница 25: ...housing Count Description Value 1 PiXtend eIO Digital One Basic device 1 8 Jumper standard black 2 1 Safety data sheet multilingual 3 Table 1 Scope of delivery PiXtend eIO Digital One Basic article 8...

Страница 26: ...g Count Description Value 1 PiXtend eIO Digital One Pro device with housing 1 8 Jumper standard black 2 1 Safety data sheet multilingual 3 Table 2 Scope of delivery PiXtend eIO Digital One Pro article...

Страница 27: ...housing Count Description Value 1 PiXtend eIO Analog One Basic device 1 4 Jumper standard black 2 1 Safety data sheet multilingual 3 Table 3 Scope of delivery PiXtend eIO Analog One Basic article 810...

Страница 28: ...g Count Description Value 1 PiXtend eIO Analog One Pro device with housing 1 4 Jumper standard black 2 1 Safety data sheet multilingual 3 Table 4 Scope of delivery PiXtend eIO Analog One Pro article 8...

Страница 29: ...em number 914 Count Description Value 1 Connection cable three pole with D SUB 9 socket can be used with all PiXtend eIO devices accessories article 132 RS485 USB dongle 2 m LiYY 0 25 mm AWG23 1 1 Con...

Страница 30: ...25 mm AWG23 120 termination resistor 1 1 Connection cable three pole 0 3 m LiYY 0 25 mm AWG23 2 Table 6 Scope of delivery Cable set with termination article 915 The cable set with termination terminat...

Страница 31: ...ble extension 0 8 m 3 Table 7 Scope of delivery RS485 USB Dongle article 132 Combines perfectly with the PiXtend eIO cable sets article 914 915 and is compatible with most available computer systems R...

Страница 32: ...ard with just a few simple steps If necessary a suitable protective conductor connection is attached to the device in section 5 3 After the preliminary work your PiXtend eIO system is ready to go and...

Страница 33: ...settings are made via these Switch T termination resistor In a RS485 bus system a terminating resistor is always required at the two bus ends PiXtend eIO devices have such a terminating resistor integ...

Страница 34: ...er a restart of the device power cycle the change is accepted Switch M Mode This switch determines the protocol with which the device is to be addressed Position ON PiXtend eIO ASCII protocol Position...

Страница 35: ...ination of baud rate parity and stop bit s and then transfer the corresponding switch order of the table to the switches of DIP block 2 from left to right according to the assignment 1 switch 1 to 6 s...

Страница 36: ...0 11 230400 none 1 1 1 0 1 0 0 12 2400 none 2 0 0 1 1 0 0 13 4800 none 2 1 0 1 1 0 0 14 9600 none 2 0 1 1 1 0 0 15 14400 none 2 1 1 1 1 0 0 16 19200 none 2 0 0 0 0 1 0 17 28800 none 2 1 0 0 0 1 0 18...

Страница 37: ...0 1 35 4800 Odd 1 1 1 0 0 0 1 36 9600 Odd 1 0 0 1 0 0 1 37 14400 Odd 1 1 0 1 0 0 1 38 19200 Odd 1 0 1 1 0 0 1 39 28800 Odd 1 1 1 1 0 0 1 40 38400 Odd 1 0 0 0 1 0 1 41 57600 Odd 1 1 0 0 1 0 1 42 76800...

Страница 38: ...e allowed In the following table you will find all 255 possible device addresses listed together with the corresponding switch position on DIP block 1 for all 8 switches A 0 means off position OFF the...

Страница 39: ...0 0 10 0 1 0 1 0 0 0 0 11 1 1 0 1 0 0 0 0 12 0 0 1 1 0 0 0 0 13 1 0 1 1 0 0 0 0 14 0 1 1 1 0 0 0 0 15 1 1 1 1 0 0 0 0 16 0 0 0 0 1 0 0 0 17 1 0 0 0 1 0 0 0 18 0 1 0 0 1 0 0 0 19 1 1 0 0 1 0 0 0 20 0...

Страница 40: ...1 1 0 1 0 1 0 0 44 0 0 1 1 0 1 0 0 45 1 0 1 1 0 1 0 0 46 0 1 1 1 0 1 0 0 47 1 1 1 1 0 1 0 0 48 0 0 0 0 1 1 0 0 49 1 0 0 0 1 1 0 0 50 0 1 0 0 1 1 0 0 51 1 1 0 0 1 1 0 0 52 0 0 1 0 1 1 0 0 53 1 0 1 0 1...

Страница 41: ...0 0 1 1 0 0 1 0 77 1 0 1 1 0 0 1 0 78 0 1 1 1 0 0 1 0 79 1 1 1 1 0 0 1 0 80 0 0 0 0 1 0 1 0 81 1 0 0 0 1 0 1 0 82 0 1 0 0 1 0 1 0 83 1 1 0 0 1 0 1 0 84 0 0 1 0 1 0 1 0 85 1 0 1 0 1 0 1 0 86 0 1 1 0 1...

Страница 42: ...1 0 1 1 0 110 0 1 1 1 0 1 1 0 111 1 1 1 1 0 1 1 0 112 0 0 0 0 1 1 1 0 113 1 0 0 0 1 1 1 0 114 0 1 0 0 1 1 1 0 115 1 1 0 0 1 1 1 0 116 0 0 1 0 1 1 1 0 117 1 0 1 0 1 1 1 0 118 0 1 1 0 1 1 1 0 119 1 1 1...

Страница 43: ...1 1 0 0 0 1 143 1 1 1 1 0 0 0 1 144 0 0 0 0 1 0 0 1 145 1 0 0 0 1 0 0 1 146 0 1 0 0 1 0 0 1 147 1 1 0 0 1 0 0 1 148 0 0 1 0 1 0 0 1 149 1 0 1 0 1 0 0 1 150 0 1 1 0 1 0 0 1 151 1 1 1 0 1 0 0 1 152 0 0...

Страница 44: ...1 1 0 1 0 1 176 0 0 0 0 1 1 0 1 177 1 0 0 0 1 1 0 1 178 0 1 0 0 1 1 0 1 179 1 1 0 0 1 1 0 1 180 0 0 1 0 1 1 0 1 181 1 0 1 0 1 1 0 1 182 0 1 1 0 1 1 0 1 183 1 1 1 0 1 1 0 1 184 0 0 0 1 1 1 0 1 185 1 0...

Страница 45: ...0 0 1 0 1 1 209 1 0 0 0 1 0 1 1 210 0 1 0 0 1 0 1 1 211 1 1 0 0 1 0 1 1 212 0 0 1 0 1 0 1 1 213 1 0 1 0 1 0 1 1 214 0 1 1 0 1 0 1 1 215 1 1 1 0 1 0 1 1 216 0 0 0 1 1 0 1 1 217 1 0 0 1 1 0 1 1 218 0 1...

Страница 46: ...1 1 1 1 0 1 1 1 240 0 0 0 0 1 1 1 1 241 1 0 0 0 1 1 1 1 242 0 1 0 0 1 1 1 1 243 1 1 0 0 1 1 1 1 244 0 0 1 0 1 1 1 1 245 1 0 1 0 1 1 1 1 246 0 1 1 0 1 1 1 1 247 1 1 1 0 1 1 1 1 248 0 0 0 1 1 1 1 1 249...

Страница 47: ...ccessible and you can continue on page 49 Disassembly assembly of the stainless steel cover If the module has already been commissioned and cables have been connected disconnect the power supply and a...

Страница 48: ...inted circuit boards at mechanical screw connections or connectors Direct contact with electronic components and solder contacts soldering surfaces should be avoided at any time On the following pages...

Страница 49: ...es not lead to a defect However signals from one input are transmitted to the other which can lead to unexpected behavior Check the correct jumper setting before connecting a signal to the inputs If n...

Страница 50: ...mper is inserted the analog voltage input is in the measuring range 0 10 V factory setting If a jumper is plugged in the range of the input changes to 0 5 V Reducing the voltage range can make sense i...

Страница 51: ...designed for common cable lugs or so called flat plug in sleeves width 6 35 mm Likewise another protective conductor connection is available at the bottom of the DIN rail housing made of aluminum For...

Страница 52: ...angerous voltage could be applied to metal parts of PiXtend eIO then the current flow through the protective conductor connections is reliably ensured The safety mechanisms miniature circuit breaker p...

Страница 53: ...ctions which carry dangerous voltages but at least one cable with a cross section of 1 5 mm AWG15 16 When connecting PE use a wire wire or stranded wire with the usual green yellow color coding Use fl...

Страница 54: ...s document if you want to use power supplies other than those described below The exact requirements for a power supply can be found in chapter 6 Technical Data Connection Notes Note Always make sure...

Страница 55: ...lowing components Plug in power supply fixed output voltage 24 V DC 1 04 A Adapter from hollow socket to terminals Connection cables red and blue 0 75 mm 10 cm in length The adapter is plugged into th...

Страница 56: ...te the polarity of your power supply The polarity can be taken from the operating instructions of the power supply unit or checked with a voltmeter Now the connection cables can be connected to your P...

Страница 57: ...connected correctly Note Before using the power supply for the first time pay attention to the enclosed safety instructions of the respective manufacturer The power supply can now be plugged into a 1...

Страница 58: ...apply voltage to power supplies or your PiXtend eIO module Note Before you buy make sure that the power adapter complies with the laws of your country If in doubt contact the manufacturer or dealer fo...

Страница 59: ...Working on the electricity grid 115 230 V AC are only allowed by qualified personnel The following figure shows a 60 W DIN rail power supply which can be used for PiXtend eIO With the illustrated powe...

Страница 60: ...ifferent devices can perform the tasks of a bus master In the following we show you in detail two possible configurations 1 PiXtend V2 L as master 2 PC with USB RS485 dongle as master At the end of th...

Страница 61: ...lack or blue 1x 0 75 mm Laboratory power supply with setting to 24 V min 1 A We assume here that all devices are configured to factory settings You will find the settings for PiXtend eIO in this docum...

Страница 62: ...PiXtend eIO eIO cable set chapter 4 5 1 We start from the bus master PiXtend V2 L and here connect the control line with the named terminals At the other end of the wires we plug in the first eIO devi...

Страница 63: ...block We set the jumper to the marked position ON For PiXtend eIO Digital One only the switch T has to be switched to ON Now everything is ready to work with the devices Commissioning with software i...

Страница 64: ...dongle QS item 132 1x PiXtend eIO Cable set with termination QS item 915 approx 2 meters of stranded wire red 1x 0 75 mm approx 2 meter wire black or blue 1x 0 75 mm Laboratory power supply with sett...

Страница 65: ...t one end This can be connected directly to the USB dongle At the other end of the wires we connect the first of the two eIO devices From this device we loop with the shorter cable from our set on to...

Страница 66: ...e software manual for PiXtend eIO for several platforms Note If you want to work with your own connectors and cables then this is possible Make sure that the GND cable is also connected in any case Th...

Страница 67: ...his functionality in manufacturing and quality control If the red LED ERR flashes continuously this is a sign that you have selected Modbus as protocol mode and set an invalid address Change the addre...

Страница 68: ...ve Are all devices on the bus configured correctly Maybe two devices have the same address this is not allowed and causes problems Are the connections of the data lines correctly connected or inadvert...

Страница 69: ...etailed section with all technical data and connection instructions General for all eIO devices Overall system p 70 Mechanics p 71 Voltage regulator p 75 LED signaling p 79 Serial bus interface RS 485...

Страница 70: ...onsumption typ 15 304 mA max 0 2 A typ 25 1055 mA max 0 2 A eIO Digital One Basic Pro eIO Analog One Basic Pro Protection class IP00 IP20 eIO Digital Analog One Basic eIO Digital Analog One Pro Pollut...

Страница 71: ...it boards are designed for insertion in a DIN rail housing made of aluminum which are also pre assembled with Pro devices If PiXtend eIO is used without the housing parts mentioned in the case of Basi...

Страница 72: ...Y direction for mounting the stainless steel cover all eIO devices further drilling eIO Digital One further drilling eIO Analog One 5 mm 5 mm 91 25 mm 91 25 mm 47 525 mm 72 139 mm 47 525 mm 54 613 mm...

Страница 73: ...PiXtend eIO Hardware Manual PiXtend eIO Analog One www pixtend com Copyright by Qube Solutions GmbH 73 119 X Y...

Страница 74: ...s released via the actuating push button Connection data Value Comment cable cross section min max 0 2 mm 1 5 mm for rigid and flexible lines cable cross section with with wire end ferrule min max 0 2...

Страница 75: ...omponents The 5 V DC voltage is intended only for the internal supply of the PiXtend eIO device and must not be used for external purposes If your application requires 24 V DC as well as 5 V DC use an...

Страница 76: ...protection yes thermally self resetting Cooling yes passive heat sink circuit board Reverse polarity protection yes up to 30 V EMC Surge Burst Protection yes transil diode bidirectional Isolation no...

Страница 77: ...Depending on the load and ambient temperature the voltage regulator circuit board and diodes of the voltage regulator may have temperatures of up to 75 C Direct contact has to be avoided www pixtend c...

Страница 78: ...drops at the supply input of 10 milliseconds The energy reserve is designed to ensure said bridging time throughout the life of the equipment If several PiXtend eIO devices are operated in a system ea...

Страница 79: ...ly of the device is not available or insufficient In this case check the wiring the voltage between the terminals VCC and GND and check again the requirements of the power supply according to chapter...

Страница 80: ...frequency a tendency can be read the higher the frequency the more data or the faster data is transferred on the bus However the exact baud rate or amount of data can not be determined by this LED Th...

Страница 81: ...baud rate set flashing fast 0 05 s communication error configuration error For Modbus RTU PiXtend eIO ASCII protocol Error during data transfer Configuration via DIP switch inadmissible or changed du...

Страница 82: ...lace The interface works with differential signal levels and is therefore particularly immune to interference It is designed according to RS 485 or EIA485 standards and complies with the specification...

Страница 83: ...terminating resistor The dual design of terminals A D1 and B D0 allow the bus to be easily looped daisy chained for easy reliable and economical wiring Baud rates from 2 400 to 230 400 baud 1 or 2 st...

Страница 84: ...ology of other participants on the bus Differential output voltage min 1 5 V max 8 V with maximum load 27 without load Minimum differential input voltage 0 2 V input threshold voltage Maximum voltages...

Страница 85: ...h trunk cable max 1000 m at 9 600 baud 0 20 mm AWG24 Conductor cross section or larger the maximum bus length is generally dependent on the nature environment and cross section of the cables used the...

Страница 86: ...chips are always exactly the opposite as from the RS EIA 485 standard This circumstance is the reason for all the confusion For PiXtend V1 x V2 L and eIO devices the names of A B are always the same...

Страница 87: ...ng resistor of 120 must be connected at both ends of the line or bus structure first and last bus node If PiXtend eIO is one of these bus ends the DIP switch T stands for Termination must be set to ON...

Страница 88: ...has digital inputs and outputs This chapter contains all relevant technical data as well as connection and safety instructions Always read the relevant sections before beginning wiring and working at...

Страница 89: ...age ranges can be set one jumper per input In the 24 V range the inputs comply with the requirements of the PLC standard IEC EN 61131 2 Even signals with 12 V level for example in the automotive autom...

Страница 90: ...Input current at rated voltage 4 2 mA Maximum voltage 30 V input current 5 6 mA Reverse polarity protection yes max 30 V Isolation no Status display LED orange Description DI0 DI7 Permitted cable leng...

Страница 91: ...esis 6 6 mA Input current at rated voltage 9 V input current 17 mA Reverse polarity protection yes max 9 V Isolation no Status display LED orange Description DI0 DI7 Permitted cable length 30 m Table...

Страница 92: ...for each input with which can choose between two voltage ranges adjustment of the switching level The pin headers on which the jumpers can be inserted are located behind the terminals of the digital i...

Страница 93: ...switches etc PiXtend eIO s GND must be connected to the GNDs of the other power supplies We recommend connecting the ground potentials of all power supplies used at a central point bridged terminal s...

Страница 94: ...are short circuit and overload proof The outputs correspond to protected and short circuit proof outputs according to the PLC standard IEC EN 61131 2 These are so called high side switches that are su...

Страница 95: ...ernally EMC Surge Burst protection yes Transil diode bidirectional Isolation no Status display LED green Description VCC DO0 3 VCC DO4 7 Permitted cable length 30 m Table 20 Technical data DO supplys...

Страница 96: ...Maximum switching capacity 2 5 W 6 W 12 W at 5 V DC at 12 V DC at 24 V DC ON resistance 350 m at logical 1 and nominal load Short circuit protection Current limit Overload protection yes yes yes therm...

Страница 97: ...n the load and ambient temperature the power transistors may have temperatures of up to 85 C Direct contact must be avoided Output currents greater than 0 5 A are not permitted in normal operation www...

Страница 98: ...e voltage at the output never exceeds 40 V This can be achieved for example by a freewheeling diode 1N4004 as shown in figure 39 Inductive loads are DC motors relays contactors solenoids etc The groun...

Страница 99: ...current outputs AO4 AO5 The analogue channels comply with the standard for Programmable Logic Controllers IEC 61131 2 and are therefore suitable for a large number of industrial sensors and measuring...

Страница 100: ...es for example in a robot application Current measurement with an external shunt voltage at the resistor Evaluation of PT100 1000 sensors with an external preamp Connection to the analog outputs of ot...

Страница 101: ...thus enjoy the greater flexibility and robustness of the inputs In the 5 V range jumper plugged however the same resolution is available for a smaller measuring range When it comes to accuracy that ca...

Страница 102: ...onverter with mux conversion time 45 s averaging calculation 5 samples 225 s Digital resolution 10 bit Smallest digital step LSB 9 77 mV Max measurement error at 25 C 0 5 50 mV of the range of values...

Страница 103: ...with mux Conversion time 45 s averaging calculation 5 samples 225 s Digital resolution 10 bit Smallest digital step LSB 4 88 mV Max measurement error at 25 C 0 5 25 mV of the range of values Temperatu...

Страница 104: ...ximum values they can not be evaluated PiXtend eIO can not automatically evaluate the jumper state plugged unplugged of the analog voltage inputs If you insert the jumper you have to react accordingly...

Страница 105: ...quire measuring a voltage In Figure 42 for example a simple circuit with photosensitive resistor LDR or the evaluation of a rotary potentiometer is shown The ground connections GND of external power s...

Страница 106: ...e to connect the shielding to a grounded and bare metal surface purchase earthing clamps and screwed connections in the hardware store or electronics retailer There must be made an electrically conduc...

Страница 107: ...version method successive approximation a converter with mux Conversion time 45 s averaging calculation 5 samples 225 s Digital resolution 10 bit Smallest digital step LSB 20 17 A Max measurement erro...

Страница 108: ...nd AC currents When using alternating currents the input filters must be observed Only measurements in the positive range are possible Although negative currents can be created they can not be evaluat...

Страница 109: ...ges are applied to the input the current flow increases rapidly over the permitted range and is limited at approx 100 150 mA by a self resetting fuse Even if this avoids defects it is not recommended...

Страница 110: ...ive inputs of the remote station Control analog digital display devices Reliable and robust signal transmission over long distances 4 20 mA The two voltage outputs are short circuit proof and can driv...

Страница 111: ...ues Temperature coefficient 0 01 pro C in the range 0 60 C ambient temperature Data format 16 bit integer raw value right justified Short circuit protection yes short circuit to GND Permitted cable le...

Страница 112: ...terminal block between the analog outputs and inputs As with the analog inputs shielded cables should be used for analog outputs The six blue potentiometers on PiXtend eIO Analog One are used during...

Страница 113: ...g Temperature coefficient 0 01 pro C in the range 0 60 C ambient temperature Data format 16 bit integer raw value right justified Overload protection yes up to idle Overload detection yes Overload wir...

Страница 114: ...e current flow from the outputs Each of the two channels is monitored separately and can pass on an overload message to the bus master For further details of the evaluation in the software please take...

Страница 115: ...d then sealed with lacquer Warning The adjustment screws of the potentiometers must not be operated and the varnish should not be broken The accuracy and specification from this data sheet can not be...

Страница 116: ...2 V is possible in principle but brings with it restrictions These limitations are discussed below Thus you can decide for your application whether you can use PiXtend eIO devices with 12 V or not Eff...

Страница 117: ...4 V range 49 Figure 20 Jumper analog voltage inputs at the 10 V range 50 Figure 21 Protective earth PE connection at the PiXtend eIO Pro cover 51 Figure 22 Protective earth PE connection at the PiXten...

Страница 118: ...cuit diagram GND connection 106 Figure 44 Principle circuit diagram connection of the analog current inputs 109 Figure 45 Terminal blocks analog outputs 110 Figure 46 Principle circuit diagram connect...

Страница 119: ...units 70 Table 11 Technical specifications PiXtend eIO PCB 72 Table 12 Technical data terminal blocks 74 Table 13 Technical data voltage regulator internal 76 Table 14 LED 5V Signaling of the supply v...

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