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Universal AI/DI Module DMB 96500

Universal Measuring Input, Modbus RTU

  • High performance measuring
    input for all industrial sensors: Pt, Ni, TC, KTY, mA, V, mV, Ω, Pot, Hz, PWM
  • Uni-/Bipolar and TRMS capture
    of current and voltage
  • Easy configurable
    by DIP switch or USB interface
  • 15 programmable user-specific settings
    directly selectable via DIP switches
  • Freely scalable
    up to 247 DRAGO devices in one Modbus segment
  • Protective Separation
    up to 300 V AC/DC, test voltage 3 kV
  • Highest accuracy
    measuring resolution up to 24 bit
  • Fast measured value processing
    high data rate
  • In-Rail-Bus Connector
    for Modbus and power supply
  • Extremly slim
    only 6.2 mm installation width
  • Made in Germany
    5 Years Warranty

The Modbus Universal AI/DI Module is intended to be used with a wide range of industrial sensors. All parameter can be set via Modbus RTU Interface. A subset of the most common settings is available via DIP switches.

The measuring value can be read over the Modbus RTU (RS485) interface.

The 2-way isolation guarantees reliable decoupling of the sensor circuit from the Processing circuit and the auxiliary power circuit. Auxiliary power and Modbus RTU can be connected via the connection terminals or via the In-Rail-Bus connector (see accessories).

Product line

Product line DMB 96500

Order No.
Screw
Connection
Push-In
Connection
Modbus Universal AI/DI Module,
In-Rail-Bus for power supply and Modbus connection
DMB 96500 B DMB 96504 B

Technical Data

Input

Sensor / input signal Measuring error TC1)
Pt100 0.1 K + 0.05 % m.v. 0.02 K/°C
Pt200 0.3 K + 0.05 % m.v. 0.02 K/°C
Pt500 0.2 K + 0.05 % m.v. 0.02 K/°C
Pt1000 0.1 K + 0.05 % m.v. 0.02 K/°C
Pt2000 0.2 K + 0.05 % m.v. 0.02 K/°C
Pt10000 acc. IEC 60751 0.2 K + 0.05 % m.v. 0.06 K/°C
JPt50 (TK3916) acc. JIS C 1604 0.2 K + 0.05 % m.v. 0.03 K/°C
JPt100 (TK3916) acc. JIS C 1604 0.1 K + 0.05 % m.v. 0.02 K/°C
Ni100 0.1 K + 0.05 % m.v. 0.02 K/°C
Ni120 0.1 K + 0.05 % m.v. 0.02 K/°C
Ni200 0.1 K + 0.05 % m.v. 0.02 K/°C
Ni500 0.5 K + 0.05 % m.v. 0.02 K/°C
Ni1000 0.25 K + 0.05 % m.v. 0.02 K/°C
KTY (66 types) 0.1 K + 0.05 % m.v. 0.02 K/°C
Measuring rate Pt, Ni, KTY 4 /s  
Resistor 500 Ω, 5 kΩ, 20 kΩ, 100 kΩ 0.05 % full scale 100 ppm/K
Potentiometer 500 Ω, 5 kΩ, 20 kΩ, 100 kΩ 0.05 % 100 ppm/K
Measuring rate resistance / Pot 25 /s  
Cable resistance < 100 Ω, programmable for 2-wire
Connection / Sensor current 2-, 3-, 4-wire / 0.2 mA, 10 µA
TC sensor type A 0.5 K + 0.08 % m.v. 0.1 K/°C
TC sensor type B 0.5 K + 0.08 % m.v. 0.15 K/°C
TC sensor type C 0.5 K + 0.08 % m.v. 0.1 K/°C
TC sensor type D 0.5 K + 0.08 % m.v. 0.1 K/°C
TC sensor type E 0.5 K + 0.08 % m.v. 0.05 K/°C
TC sensor type J 0.5 K + 0.08 % m.v. 0.05 K/°C
TC sensor type K 0.5 K + 0.08 % m.v. 0.05 K/°C
TC sensor type L 0.5 K + 0.08 % m.v. 0.05 K/°C
TC sensor type N 0.5 K + 0.08 % m.v. 0.05 K/°C
TC sensor type R 0.5 K + 0.08 % m.v. 0.1 K/°C
TC sensor type S 0.5 K + 0.08 % m.v. 0.1 K/°C
TC sensor type T 0.5 K + 0.08 % m.v. 0.05 K/°C
TC sensor type U 0.5 K + 0.08 % m.v. 0.05 K/°C
Measuring rate 4 /s  
Cold junction compensation internal, external Pt100 / Pt1000,
programmable, uncompensated
Error of Cold junction internal < 1.5 K
Current ±1 mA, ±20 mA, ±100 mA 0.05 % full scale 100 ppm/K
Voltage ±1 V, ±10 V, ±100 V, ±300 V 0.05 % full scale 100 ppm/K
mV-Shunt ±50 mV, ±100 mV, ±500 mV 0.05 % full scale 100 ppm/K
Measuring rate Current / Voltage 100 /s  
Input resistance Voltage: > 100 kΩ, Current: < 55 Ω
Measuring modes DC, Average, RMS
Additional measuring error in RMS
mode (40 Hz to 500 Hz)
2 % m.v.  
Frequency ≤ 1 Hz (gate time 1000 s) 0.1 % full scale 100 ppm/K
Frequency ≤ 10 Hz (gate time 100 s) 0.1 % full scale 100 ppm/K
Frequency ≤ 100 Hz (gate time 10 s) 0.1 % full scale 100 ppm/K
Frequency ≤ 1 kHz (gate time 1 s) 0.1 % full scale 100 ppm/K
Frequency ≤ 10 kHz (gate time 100 ms) 0.1 % full scale 100 ppm/K
Frequency ≤ 200 kHz (gate time 10 ms) 0.1 % full scale 100 ppm/K
PWM ≤ 1 Hz (gate time 1000 s) 0.1 % full scale 100 ppm/K
PWM ≤ 10 Hz (gate time 100 s) 0.1 % full scale 100 ppm/K
PWM ≤ 100 Hz (gate time 10 s) 0.1 % full scale 100 ppm/K
PWM ≤ 1 kHz (gate time 1 s) 0.1 % full scale 100 ppm/K
PWM ≤ 10 kHz (gate time 100 ms) 0.1 % full scale 100 ppm/K
PWM measuring range 1 ... 99 %  
Input signal NAMUR, SN, NPN, PNP, Push-Pull, S0-Switch type B
Push-Pull voltage level 3.3 ... 5 V
NPN-Pullup 3.2 kΩ, always active
PNP-Pulldown 11 kΩ, always active

Modbus

Protocol Modbus RTU (RS485)
Module addressing 1 to 247
Response delay 1 to 1000 ms, programmable
Baud rate 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
Configuration Parity: Even, Odd, None with 2 stop bits, None with 1 stop bit
Connectivity Up to 247 DRAGO Modbus devices without additional repeater (1/8 Load)
Indication Yellow LED on front panel
Measurement range 0 to 115 % (current and voltage modes)

General Data

Test voltage 3 kV AC, 50 Hz, 1 min., Input against Modbus/power supply
Working voltage2)
(Basic insulation)
600 V AC/DC for overvoltage category II and pollution degree 2
acc. to EN 61010-1
Protection against dangerous
body currents2)
Protective Separation by reinforced insulation acc. to EN 61010-1
up to 300 V AC/DC for overvoltage category II and contamination
class 2 between input and Modbus/power supply.
Ambient temperature Operation: -25 °C to +70 °C (-13 to +158 °F)
Transport and storage: -40 °C to +85 °C (-40 to +185 °F)
Power supply 24 V DC, 16.8 V to 31.2 V DC, approx. 1.3 W
EMC3) EN 61326-1
Construction 6.2 mm (0.244’’) housing, protection type: IP 20,
mounting on 35 mm DIN rail acc. to EN 60715
Connection
(captive plus-minus clamp screws)
Solid: 0.5 mm2 - 4 mm2 / AWG 20-12
Fine-stranded: 0.5 mm2 - 2.5 mm2 / AWG 20-14
Stripped length: 6-8 mm / 0.28 in
Screw terminal torque 0.8 Nm / 7 lbf in
Weight Approx. 70 g
  1. Average TC in specified operating temperature range, given in units of display error [K] per change in ambient temperature [°C]
  2. As far as relevant the standards and rules mentioned above are considered by development and production of our devices. In addition relevant assembly rules are to be considered by installation of our devices in other equipment. For applications with high working voltages, take measures to prevent accidental contact and make sure that there is sufficient distance or insulation between adjacent situated devices.
  3. Minor deviations possible during interference

Block diagram

Dimensions

Terminal assignments

  • 1 Input RTD / R / Pot / TX+ / Namur+
  • 2 Input RTD / R / Pot / U+ /
  • 3 Input RTD / R / Pot / TX- / I+ / TC+ / mV+
  • 4 Input RTD / R / Pot / U- / I- / TC- / mV-
  • 5 Modbus A (connected to In-Rail-Bus A)
  • 6 Modbus B (connected to In-Rail-Bus B)
  • 7 + Power supply 24 V DC
    (connected to In-Rail-Bus D)
  • 8 − Power supply 24 V DC
    (connected to In-Rail-Bus C)
  • A Modbus A
  • B Modbus B
  • C − Power supply 24 V DC
  • D + Power supply 24 V DC

Subject to change!

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