External input/output modules for control units

AIM600, AIM615 – 4-20 mA/RS485 Converters

The AIM600 and AIM615 transducers are characterized primarily by high measurement accuracy provided by the 24-bit converter, as well as low quiescent current consumption, a supply voltage suitable for operation from a 12 V battery, galvanic isolation of the inputs from both the supply voltage and the RS485 communication line, and, last but not least, high operational reliability without any mechanical adjustment elements.

  • 6 inputs galvanically isolated from both the power supply and the RS485 serial bus
  • Measurement channels with ranges of 0–20 mA or 4–20 mA, with conversion to 0–100% of the measured value for each input
  • High-precision 24-bit converter
  • Error detection for current measurements above 20.75 mA and below 3.75 mA (for 4–20 mA ranges)
  • Modbus RTU or FINET protocols and a configurable address for connecting multiple AIM6xx modules into a single system
  • Low current consumption, suitable even for battery-powered applications
  • Overvoltage protection for both inputs and outputs
  • Compatible with FIEDLER AMS telemetry stations

Description

The measurement modules are used to convert up to 6 current signals (0–20 mA or 4–20 mA) to an RS485 data output using the Finet or Modbus RTU protocol.
The AIM615 module includes a galvanically isolated 15 V DC power supply (UISO) designed to power connected measurement sensors and transducers.
The AIM600 module allows only the connection of active current signals powered by a separate voltage source.

Applications

  • Expanding the number of analog inputs on measuring stations and telemetry stations
  • Connecting an analog signal to a fiber-optic line or radio network
  • Adding the required number of analog inputs to simple PLCs and control units

Technical specifications

Technical Specifications AIM600 AIM615
Inputs IN1 to IN6, measurement range 4(0) – 20 mA IN1 to IN6, measurement range 4(0) – 20 mA
Measurement error < ±0.05% of range, high-precision 24-bit converter < ±0.05% of range, high-precision 24-bit converter
Measurement time < 0.3 s per measurement channel < 0.3 s per measurement channel
Input resistance 50 Ω 50 Ω
RS485 Output Channels K1 through K6 via RS485 using the FINET (MODBUS RTU) protocol Channels K1 through K6 via RS485 using the FINET (MODBUS RTU) protocol
Communication address 60 + on-board switch (0 to 15) 60 + on-board switch (0 to 15)
Measurement range 0 to 100% [-] of the 0(4)-20 mA range, float format (10000=100%) 0 to 100% [-] of the 0(4)-20 mA range, float format (10000=100%)
Supply voltage 6 to 26 V DC / I < 15 mA 11 to 13 V DC / I < 180 mA
UISO output - 15 VDC / 1000 V galvanic isolation
Temperature range -25 °C to +60 °C -25 °C to +60 °C
Dimensions/IP 109 x 23 x 57 mm / IP 20 (width: 1 module/DIN rail) 109 x 23 x 57 mm / IP 20 (1 module wide / DIN rail)

Non-binding inquiry

AIM600, AIM615 – 4-20 mA/RS485 Converters



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