Digital Panel Meters Modular Indicator and Controller Type UDM40 • • • • • • • • The alarm status can be coupled to the different colour of the display • Linearization of V and A inputs up to 16 points • • • • • • Multi-input modular instrument 4 dgt LED 0.1% RDG basic accuracy TRMS AC current and voltage measurements AC/DC current measurements; selectable full scales (200µA to 5A) AC/DC voltage measurements; selectable full scales (200mV to 500V) °C or °F temperature measurements (Pt100-250-500-1000, Ni100, TC J-K-S-T-E) Resistance measurements; selectable full scales (20Ω to 20kΩ) Up to 4 independent alarm set-points (optional) 20mA/10VDC analog output (optional) Serial port RS485 or RS232 (optional) MODBUS, JBUS communication protocol Front protection degree: IP67, NEMA4x LED display, selectable colour (red, amber, green) Product Description How to order digital panel µp-based meter, 4-dgt LED indicator, for current, voltage, temperature and resistance measurements. Measuring ranges and functions easily programmable from the keypad or from the PC by Model Slot A Slot B Slot C Slot D Options means of optional UdmSoft software. UDM40 includes storage min-max functions and double level protection password. Housing for panel mounting with front protection degree: IP67, NEMA4x. How to order UDM40 XXX XX XX X XX UdmSoft-kit UdmSoft-kit: software plus “UCOM1” communication cable for programming UDM40 by means of PC . Type Selection Slot A (measuring inputs) Slot B (communication) Slot C (communication and alarm) Slot D (power supply) LSX: signal inputs: 0.2-2-20mA DC/AC; 0.2-2-20V DC/AC LSE/ LSF: signal inputs: + AUX: 0.2-2-20mA DC/AC; 0.2-2-20V DC/AC HSX: signal inputs: 0.2-2-5A DC/AC; 20-200-500V DC/AC TRX: signal inputs: TC temperature probes (J-KS-T-E, Pt100-250-5001000) and resistance (0.02-0.2-2-20kΩ) XX: SX: SY: AV(*): None Serial port RS485 Serial port RS232 Single analogue output, 0 to 20mA DC and 0 to 10V DC XX: R1: H: L: (*): The two analogue outputs cannot be used at the same time. It is possible to plug in only one module by instrument. None Single relay output, (AC1-8AAC, 250VAC) R2: Dual relay output, (AC1-8AAC, 250VAC) R4: Dual relay output, (AC18AAC, 250VAC) + dual open collector output (NPN, 100mA) R5: 4 relay outputs (AC1-5AAC, 250VAC) AV(*): Single analogue output, 0 to 20mA DC and 0 to 10V DC 90 to 260V AC/DC 18 to 60V AC/DC Options XX: TX: None Tropicalization Input Specifications Analogue inputs BQ LSX module BQ LSE/LSF module BQ HSX module BQ TRX module BQ TRX module Digital inputs Number of inputs Use Channels and variable 1, mA and V DC/AC 1, mA and V DC/AC + AUX 1, A and V DC/AC 1, temperature 1, resistance Incl. in the measuring module 1 (voltage-free) key-pad lock Display hold Reset of latch alarms Specifications are subject to change without notice Contact reading signal Close contact resistance Open contact resistance Insulation Accuracy (display, RS485) UDM40DS 040706 BQ xxx: <0.1mA, <3,5V DC BQ LSE/BQ LSF: <2.5mA, <14V DC Max 1kΩ Min 500kΩ Non-insulated See table “Measuring accuracy”, temperature drifts and minimum-maximum indications” 1 UDM40 Input specifications (cont.) Additional errors Humidity Input frequency Magnetic field Temperature drift Sampling rate Display refresh time Display Colour Max and min indication Measurements 0.3% RDG, 60% to 90% R.H. 0.4% RDG, 62 to 440 Hz 0.5% RDG @ 400 A/m See table “Measurement accuracy, temperature drifts, and max/min indications” 500 samples/s @ 50 Hz 200 msec @ 50Hz 4 DGT, 7 segments height 14.2 mm Selectable (red, amber, green) See table “Measurement accuracy, temperature drifts and max min indications” Current, voltage, temperature and resistance. For the current and voltage measurements: TRMS measurement Coupling type Crest factor Input impedance Frequency Overload Compensation RTD TC of distorted sine waves. Direct ≤3; APmax=1.7In; VPmax=1.7Un See table “input impedances and overloads” 40 to 440 Hz See table “input impedances and overloads” Only temperature measurement module. - For Pt 100-250-500-1000, 3-wire connection: up to 10Ω - For resistance measur. with 20Ω range: up to max 0.1Ω - For resistance measurements with ≥200Ωrange: up to max 10Ω Internal cold junction, within temperature range from 0 to +50°C. Automatic or manual com- Measurement accuracy, temp. drifts, max and min indications All accuracies and min/max indications are referred to an ambient temp. range of 25°C ±5°C, rel. humidity ≤60% and scale ratio (electrical/displayed scale) equal to 1. The conversion into °F is obtained acting on the electrical/displayed scale ratio. Module Inputs Type Accuracy BQ LSX/ BQ LSE/ BQ LSF DC: ±(0.1%RDG+3DGT) 0% to 25% FS; -200µA to +200µA ±(0.1%RDG+2DGT) -2mA to +2mA 25% to 110% FS. -20mA to +20mA DC/AC TRMS (da 45 a 65Hz)*: -200mV to +200mV ±(0.3%RDG+3DGT) -2V to +2V 0% to 25% FS; -20V to +20V ±(0.3%RDG+2DGT) 25% to 110% FS. BQ HSX DC: ±(0.1%RDG+3DGT) 0% to 25% FS; -200mA to +200mA ±(0.1%RDG+2DGT) -2A to +2A 25% to 110% FS. -5A to +5A DC/AC TRMS (45 to 65Hz)*: -20V to +20V ±(0.3%RDG+3DGT) -200V to +200V 0% to 25% FS; -500V to +500V ±(0.3%RDG+2DGT) 25% to 110% FS. BQ TRX Thermocouple -50°C to +760°C -58 °F to +1400 °F -200°C to +1260°C -328 °F to +2300°F -200°C to +1000°C -328°F to +1832°F -50°C to +1750°C -58°F to +3182°F -200°C to +400°C -328°F to +752°F * (<) 2 J J K K E E S S T T ±(0.2%RDG+1DGT) ±(0.2%RDG+2DGT) ±(0.2%RDG+2DGT) ±(0.2%RDG+4DGT) ±(0.2%RDG+2DGT) ±(0.2%RDG+4DGT) ±(0.2%RDG+2DGT) ±(0.2%RDG+4DGT) ±(0.2%RDG+2DGT) ±(0.2%RDG+4DGT) Temp. drift Min. indication (<) Max. indicat. (<) ±150 ppm/°C - 200.0 - 2.000 - 20.00 - 200.0 - 2.000 - 20.00 + 200.0 + 2.000 + 20.00 + 200.0 + 2.000 + 20.00 ±150 ppm/°C - 200.0 - 2.000 - 5.000 - 20.00 - 200.0 - 500.0 + 200.0 + 2.000 + 5.000 + 20.00 + 200.0 + 500.0 ±150 ppm/°C - 50°C - 58°F - 200°C - 328°F - 200°C - 328°F - 50°C - 58°F - 200°C - 328°F + 760°C + 1400°F + 1260°C + 2300°F + 1000°C + 1832°F + 1750°C + 3182°F + 400°C + 752°F <45Hz >65Hz= ±(0.5%RDG+3DGT) 0% to 25% FS; ±(0.5%RDG+2DGT) 25% to 110% FS. The min. indication for TRMS measurement (AC or DC) is 0; it is possible to modify the decimal point position. Specifications are subject to change without notice UDM40DS 040706 UDM40 Measurement accuracy, temp. drifts, min max indications (cont.) All accuracies and min/max indications refer to an ambient temperature range of 25°C ±5°C, relevant humidity ≤60% and scale ratio (electrical scale / displayed scale) equal to 1. The conversion into °F is obtained acting on the electrical/displayed scale ratio. Module Inputs Type Accuracy BQ TRX Thermoresistance -200°C to +850°C -328°F to +1562°F -200.0°C to +200.0°C -328°F to+392°F -200.0°C to +200.0°C -328°F to +392°F -200.0°C to +200.0°C -328°F to +392°F -200.0°C to +200.0°C -328°F to +392°F -60°C to +180°C -76°F to +356°F Pt100 Pt100 Pt100 Pt100 Pt250 Pt250 Pt500 Pt500 Pt1000 Pt1000 Ni100 Ni100 ±(0.2%RDG +2DGT) ±(0.2%RDG +4DGT) ±(0.5%RDG +5DGT) ±(0.5%RDG +5DGT) ±(0.5%RDG +5DGT) ±(0.5%RDG +5DGT) ±(0.5%RDG +5DGT) ±(0.5%RDG +5DGT) ±(0.5%RDG +5DGT) ±(0.5%RDG +5DGT) ±(0.5%RDG +1DGT) ±(0.5%RDG +2DGT) BQ TRX Resistance 0 to 20Ω 0 to 200Ω 0 to 2000Ω 0 to 20.00kΩ Ω ±(0.2%RDG+2DGT) 25% to 110% FS ±(0.2%RDG+3DGT) 0% to 25% FS Temp. Drift Min. Indication Max. Indication ±150 ppm/°C - 200 - 328 - 200.0 - 328.0 - 200.0 - 328.0 - 200.0 - 328.0 - 200.0 - 328.0 - 60 - 76 + 850 + 1562 + 200.0 + 392.0 + 200.0 + 392.0 + 200.0 + 392.0 + 200.0 + 392.0 + 180 + 356 ±150 ppm/°C 0 0 0 0 20.00 (<) 200.0 (<) 2000 (<) 20.00 (<) (<) It is possible to modify the decimal point position. Input impedances and overloads Module Inputs Type Impedance Overload (continuous) Overloads (1s) BQ LSX/ BQ LSE/ BQ LSF -200µA to +200µA -2mA to +2mA -20mA to +20mA -200mV to +200mV -2V to +2V -20V to +20V DC/AC DC/AC DC/AC DC/AC DC/AC DC/AC ≤2,2kΩ ≤22Ω ≤22Ω ≥2,2kΩ ≥200kΩ ≥200kΩ 5mA 50mA 50mA 10V 50V 50V 10mA 150mA 150mA 20V 100V 100V BQ HSX -200mA to +200mA -2A to +2A -5A to +5A -20V to +20V -200V to +200V -500V to +500V DC/AC DC/AC DC/AC DC/AC DC/AC DC/AC ≤1Ω ≤0.012Ω ≤0.012Ω ≥2MΩ ≥2MΩ ≥2MΩ 0.8A 7.5A 7.5A 750V 750V 750V 1A 100A 100A 1000V 1000V 1000V -50°C to +760°C -58 °F to +1400 °F -200°C to +1260°C -328 °F to +2300°F -200°C to +1000°C -328°F to +1832°F -50°C to +1750°C -58°F to +3182°F -200°C to +400°C -328°F to +752°F J J K K E E S S T T ILK <0.5µA Max 5V Max 10V BQ TRX Thermoresistance -200°C to +850°C -328°F to +1562°F -200.0°C to +200,0°C -328°F to +392°F -200.0°C to +200,0°C -328°F to +392°F -60°C to +180°C -76°F to +356°F Pt100 Pt100 Pt250/Pt100 Pt250/Pt100 Pt1000/Pt500 Pt1000/Pt500 Ni100 Ni100 800µA (*) 800µA (*) 90µA (*) 90µA (*) 800µA (*) 800µA (*) 800µA (*) 800µA (*) Max 5V Max 10V BQ TRX Resistance 0 to 20Ω 0 to 200Ω 0 to 2000Ω 0 to 20.00kΩ Ω 800µA (*) 90µA (*) 800µA (*) 90µA (*) Max 5V Max 10V BQ TRX Thermocouple (*) Maximum measuring current generated for resistance equal to 0 Specifications are subject to change without notice UDM40DS 040706 3 UDM40 Output specifications RS422/RS485 Serial output LED Connections Distance Terminalization Addresses Protocol Data (bidirectional) Dynamic (reading only) Static (reading/writing) Data format Baud rate Insulation (on request) Module: BR SX Bidirectional (static and dynamic variables). Display of data reception/transmission Multidrop, 2 or 4 wires, 1000 m Directly on the module by means of jumper 1 to 255, selectable by means of key-pad MODBUS RTU/JBUS Measurement, min value max value alarm status All programming parameters, min max reset reset of latch alarm 8 data bit, no parity, 1 stop bit selectable 4800, 9600,19200 and 38400 bit/s By means of opto-couplers 4000 V output to measuring inputs 4000 V output to power supply input (on request) Module: BR SY Bidirectional (static and dynamic variables) 3 wires, max. 15m 1 start bit, 8 data bit, no parity, 1 stop bit Selectable 4800, 9600, 19200 and 38400 bit/s Same as RS422/485 (on request) Over-range alarm, up alarm, down alarm, down alarm with start-up deactivation up alarm with latch, down alarm with latch Adjustable from 0 to 100% of displayed electric range 0 to 100% of displayed range 0 to 255 s 0 to 255 s Selectable: normally energized /de-energized Three available coloures (green, amber, red) can be coupled to the alarm status (traffic-light function). 500 ms, with filter excluded, without alarm activation delay 1 with module BO R1 (relay output). Relay output BO R1, R2, R4 Relay output BO R5 Insulation Open collector output Insulation rms rms RS232 Serial output Connections Distance Data format Baud rate Other features Alarm outputs Alarm type Alarm set-point Hysteresis On-time delay Off-time delay Output status Display colour for alarms Min response time Output channels 4 Analogue output Range Scaling factor Accuracy Response time Termperature drift Load: 20 mA output 10 V output Insulation 2, independent with module BO R2 (2 relay outputs). 4, independent with module BO R4 (2 relay outputs + 2 open collector outputs). BO R5 (4 relay outputs) Type SPDT AC 1: 8A, 250VAC DC 12: 5A, 24VDC AC 15: 2.5A, 250VAC DC 13: 2.5A, 24VDC Type SPST (NO) AC 1: 5A, 250VAC DC 12: 3A, 24VDC AC 15: 1,5A, 250VAC DC 13: 1,5A, 24VDC 4000 VRMS output to measuring input, 4000 VRMS output to power supply input. NPN transistor type VON 1.2 VDC/ max. 100 mA VOFF 30 VDC max. By means of opto-couplers 4000 VRMS output to measuring input 4000 VRMS output to power supply input (on request) Module: BO AV 0 to 20 mADC, 0 to 10 VDC Programmable within the entire retransmission range; allows to manage the retransmission of all the values from 0 to 20 mA / 0 to 10V ± 0.2% FS (@ 25°C ± 5°C) ≤ 10 ms ± 200 ppm/°C ≤ 700 Ω ≥ 10 kΩ By means of opto-couplers 4000V output to measuring input 4000V output to power supply input The two outputs cannot be used at the same time. (on request) rms rms Notes: Excitation output BQ LSE Module Voltage BQ LSF Module Voltage Insulation 13 VDC ±10% max. 50 mA 25 VDC ±10% max. 25 mA 25V output to measuring input 4000 V output to power supply input rms rms Specifications are subject to change without notice UDM40DS 040706 UDM40 Software functions Min / Max storage Password 1st level 2nd level Measurement selection Integration time selection Automatic storage (in the EEPROM) of the minimum and maximum measured value from the previous memory reset Numeric code max 4 dgt 2 levels of data protection. 0 to 4999 completly protected. 5000 to 9999 access to programming is protected . Alarm set-points are directly programmable from the measuring mode. Depending on the module: measuring range and type of probe (resistance, RTD thermoresistance, TC thermocouple) or measuring type (TRMS or DC). Automatic or from 100.0 to 999.9 ms only in the current and voltage measurement. TC RTD Digital filter Filter operating range Filtering coefficient Scaling Linearization Points Input range Scaling factors Operating mode Electrical scale compression, displayed scale compression/expansion (max. 2 without filter, up to 10 with filter) Electrical range Programmable within the whole measuring range Decimal point position Programmable within the display range Displayed range of the variable Programmable within the display range Diagnostics The display flashes when the limits of the display range are exceeded and the data are updated up to 20% of the rated display range. Burn-out: Only temperature inputs Output range UdmSoft Opening of probe’s connection: EEE indication Opening of probe’s connection: EEE indication probe’s short circuit: -EEE indication. 0 to 9999 1 to 32 Selection of min value of the input range. Selection of max value of the input range. Selection of decimal point position. Selection of min display value. Selection of max display value. Up to 16 Selectable by every single point Selectable by every single point Software for programming UDM40 by means of PC (Windows 95, 98se, ME, XP) by means of serial port RS485 and relevant connection cable. The software is available in English, Spanish, Italian, German, French. See also “Programming of UDM40 by means of PC” . General Specifications Operating temperature Storage temperature Insulation reference voltage Insulation Dielectric strength Rejection NMRR CMRR EMC 0° to 50°C (32° to 122°F) (H.R. < 90% non-condensing) -10° to 60°C (14° to 140°F) (H.R. < 90% non-condensing) 300 VRMS to ground (500V input) See table “Insulation between inputs and outputs” 4000 VRMS for 1 minute 40 dB, 40 to 60 Hz 100 dB, 40 to 60 Hz Safety Standards Safety Connections Wire section Housing Dimensions Material Protection degree Weight Approvals EN 61010-1, IEC 61010-1 Screw type Max 2.5mm2 1/8 DIN, 48 x 96 x 105 mm PC-ABS, self-extinguishing: UL 94 V-0 Front: IP67, NEMA4x Connections: IP20 520 g approx (included all modules and packing) CE, UR, CSA EN61000-6-2, IEC61000-6-2 EN61000-6-3, IEC61000-6-3 Specifications are subject to change without notice UDM40DS 040706 5 UDM40 Supply Specifications AC/DC voltage 90 to 260V (standard) 18 to 60V (on request) Excitation output Insulation between inputs and outputs Meas. inputs Relay Static Analogue Serial AUX 90-260VAC/ output output output Port p.supply DC p. supply 18-60VAC/ DC p.supply Meas. inputs - 4kV 4kV 4kV 4kV 25V 4kV 4kV Relay Output 4kV - 2kV 4kV 4kV 4kV 4kV 4kV Static Output 4kV 2kV - 4kV 4kV 4kV 4kV 4kV Analogue Output 4kV 4kV 4kV - 4kV 4kV 4kV 4kV 10 Serial Port 4kV 4kV 4kV 4kV - 4kV 4kV 4kV 5 AUX p.supply 25V 4kV 4kV 4kV 4kV - 4kV 4kV 90-260VAC/ DC p..supply 4kV 4kV 4kV 4kV 4kV 4kV - - 18-60VAC/ DC p. supply 4kV 4kV 4kV 4kV 4kV 4kV - - V max. 30 s. Continuous 30 25 BQ LS F 20 15 BQ LSE 0 10 20 30 40 50 60 mA Available modules Type UDM40 main unit DC/AC input: 200µA , 2mA, 20mA, 200mA, 2V, 20V DC/AC input: 200µA , 2mA, 20mA, 200mA, 2V, 20V + excitation output DC/AC input: 200mA, 2A, 5A, 20V, 200V, 500V Input: 20Ω, 200Ω, 2kΩ, 20kΩ TC: J-K-S-T-E, Pt100-250-500-1000 Analogue output 0 to 20mA, 0 to 10VDC Relay output Relay output Outputs: 2 relays + 2 open collectors Possible module combinations N. of channels Ordering code BD 40 1 BQ LSX 1 BQ LSE/ BQ LSF 1 BQ HSX 1 1 1 1 2 4 BQ TRX BQ TRX BO AV BO R1 BO R2 BO R4 Relay output 4 BO R5 RS485 Serial Port 1 BR SX RS232 Serial Port 1 BR SY Power supply 18 to 60V AC/DC Power supply 90 to 260V AC/DC 6 ≤ 30VA/12W (90 to 260V) ≤ 20VA/12W (18 to 60V) Energy consumption BP L BP H Basic Unit Slot A Slot B Slot C Slot D Measuring inputs: LSX, LSE, LSF, HSX, TRX RS485 Serial port: SX RS232 Serial port: SY Analogue output: AV (*) Relay outputs and/or open collector: R1, R2, R4, R5 Power supply: H, L (*) Up to 1 module max. Used calculation formulas Only for TRMS Measurements Instantaneous effective voltage (TRMS) Instantaneous effective current (TRMS) V1 = A1 = 1 × n n å ( V 1 ) i2 1 n 1 × å ( A 1 ) i2 n 1 Specifications are subject to change without notice UDM40DS 040706 UDM40 Wiring diagrams Process signal wiring diagrams BQ LSE/LSF - Voltage measurements 3-wire connection to probe BQ LSE/LSF Fig. 5 Probe Signal output + + Vdc Probe power supply Probe Fig. 4 + + Vdc - Current measurements 4-wire connection to probe - Voltage measurements 4-wire connection to probe ˜ BQ LSE/LSF Fig. 6 Probe Signal output BQ LSE/LSF + Probe power supply ˜ Probe ˜ Voltage measurements + Probe ˜ Current measurements + + Vdc Probe Signal output Fig. 3 Probe power supply Fig. 2 + + Vdc - Current measurements 3-wire connection to probe Probe Signal output BQ LSX/LSE/LSF Probe Fig. 1 Probe power supply BQ LSX/LSE/LSF Wirings for high-level signals BQ LSE/LSF Current measurements 2-wire connection to probe BQ HSX Fig. 8 BQ HSX Fig. 9 Probe Signal output + + Vdc Probe power supply Probe Fig. 7 + Current measurements ˜ Specifications are subject to change without notice UDM40DS 040706 ˜ + Voltage measurements˜ ˜ 7 UDM40 Wiring diagrams (cont.) Wiring diagrams for temperature measurements BQ TRX Fig. 10 BQ TRX Fig. 11 Temp. measur. from thermoresistance Temp. measur. from thermocouple BQ TRX Fig. 12 Resistance measurements Wiring diagrams for power supply BP H: power supply BP L: power supply F1= 630mA T 250V 5x20mm F1= 3.15A T 250V 5x20mm Wiring diagrams of optional modules BO AV: analogue output (10V, 20mA DC) 8 BO R1: 1 relay output BO R2: 2 relay outputs BO R5: 4 relay outputs Specifications are subject to change without notice UDM40DS 040706 UDM40 Wiring diagrams of optional modules (cont.) BO SY: RS232 direct connection to PC by means of COM port. RS232 has no terminalization. GND Vcc RX TX TX RX SY LED 3 2 5 1 3 2 5 9 1 6 BO R4: dual relay output + dual open collector output: the load resistances (Rc) must be designed so that the close contact current is lower than 100mA; the VDC voltage must be lower than or equal to 30VDC. VDC: power supply output Vo+: positive output (open collector transistor). GND: ground collector (open collector transistor). RS1,2,3...N NON terminalized network Terminalized network BR SX: RS485 4-wire connection: additional devices provided with RS485 port (indicated as RS1,2,3...N) are connected in parallel. The termination of the serial port is carried out only on the last instrument of the network. The serial module is provided with a jumper for the termination of the RS485 network as shown in the figure above. Note: particular types of cables or plants may require an external termination. For the network connections use twisted cable type AWG26. Programming UDM40 by means of PC To UDM 1 1m UDM40 is programmable by PC by means of the UdmSoft software (available on request). The user can program all parameters of UDM40 that will be subsequently uploaded and set in the instrument by the RS485 network (BR SX). Should UDM40 be without the RS485 serial module, all programming parameters will be uploaded and set in the instrument by the RS232 auxiliary serial connection (1) located on the side of the measuring input module using the special connection cable (2) available on request, as shown in the figures on the left. It is also possible to program the instrument using the dot connector (1) by means of the HyperTerminal Windows functions of a PC. 2 Note: the RS232 auxiliary port IS NOT insulated from the measuring inputs. Ordering code of the cable (2): UCOM1 To PC Specifications are subject to change without notice UDM40DS 040706 9 UDM40 Front panel description : - to program values; - to select functions; - to scroll display pages. : for special functions. 2. Display Instantaneous measurements: - 4 digit (max display 9999). Alphanumeric indications by means of LED display for: - Display of configuration parameters; - The measured variable. 4 2 3 1 1. Key-pad The programming of the configuration parameters and the display may be easily controlled by means of the 4 function keys. : to enter the programming phase and to confirm the password. Dimensions 3. Alarm status LED Display any alarm condition 4. Engineering unit The instrument is supplied with a complete set of self-sticking labels with the main engineering units. Engineering Units 11mm 105mm 48mm 96mm 45mm -0,3/+0,6 92mm -0,3/+0,8 Panel depth: 8mm. 10 Specifications are subject to change without notice UDM40DS 040706 UDM40 Modules Input modules Output modules Scale 1:1 BQ LSX, BQ LSE, BQ LSF, BQ HSX, BQ TRX Measuring inputs BO AV Single analogue output 10V, 20mA DC Output modules BO R1 Single relay output BO R2 Dual relay output BO R4 Dual relay output + Dual open collector Serial port modules BR SX RS485 Serial port BO R5 4 relay outputs Power supply modules BR SY RS232 Serial port Specifications are subject to change without notice UDM40DS 040706 BP H Power supply: 60 to 260V AC/DC BP L Power supply: 18 to 60V AC/DC 11