Acromag remote I/O modules feature signal conditioners and network I/O  for a broad range of monitoring and control operations where controllers communicate with instrumentation on the plant floor or in the field. Signal Conditioners include signal transmitters, signal isolators, 4-20mA signal splitters, limit alarms and computation modules. These signal conditioners input voltage, current, thermocouple, RTD, frequency, thermistor, load cell, potentiometer, and discrete sensors. These signal conditioners output DC voltage and current, relay, frequency, pulse width modulation and display/readout. Ethernet remote I/O modules communicate via Ethernet/IP, Modbus TCP/IP, Modbus UDP/IP, and Profinet.

Showing 1–16 of 22 results

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    TT236: Current / milliVolt Input Two-Wire Transmitter

    • Multi-range ±20mA or ±500mV input
    • 4-20mA ouput (sink/source)
    • 12-32 V DC loop/local power
    The TT236 model is a space-saving two-wire transmitter that isolates and converts a DC current or low voltage input to a proportional 4-20mA control signal. A single unit supports both voltage and current input for extra flexibility. Power is received from the output loop current or a DC supply when using a three-wire connection. Click here to watch a short AcroMaggie video highlighting the TT230 Series.
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    TT336: Current/milliVolt Input, DC Power Transmitter

    • Multi-range ±20mA or ±500mV input
    • Universal current/voltage output
    • 12-32V DC power
    DC current and voltage output are both supported on a single model. An optional DIN rail bus can deliver primary or redundant power to multiple units without wiring. Click here to watch a short video highlighting the TT330 Series.  
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    340i: DC-Powered Isolator

    • 4 to 20mA DC input
    • 4 to 20mA DC output
    • 10-36V DC power
    • 1500 AC peak isolation prevents ground loops
    • Calibration is independent of the load to eliminate load compensation adjustments
    The 340i accepts a process current input and provides an isolated 4 to 20mA process current output signal.
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    611T, 612T: Single or Dual Channel, DC Voltage/Current Input, DC-Powered Transmitters

    • ±100V DC, 0 to 100mA DC, 0 to 20A AC (with optional sensor) input
    • 0 to 20mA, 0 to 10V DC output
    • 10-36V DC power
    • Universal DC I/O transmitters with auto-configuration and self-ranging capabilities
    These units receive DC current or voltage input signals, provide isolation, and output proportional DC current or voltage signals. With support for universal DC I/O ranges, 610T series transmitters provide a solution for a wide variety of isolation and signal conversion tasks.
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    631T, 632T: Single / Dual Channel Isolator

    • 4 to 20mA DC input
    • 4 to 20mA DC output
    • 12-36V DC SELV, 90-250V AC power
    • Single or dual I/O with a dual output model and full isolation
    These units receive 4-20mA process current inputs and provide isolated 4-20mA output signals. Each channel operates independently and is isolated from the others to prevent interaction between channels. Galvanic isolation eliminates ground loops, reduces noise, and blocks transient signals.
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    901MB, 902MB, 903MB: Multi-Channel Modbus-RTU Discrete I/O Modules

    • Active-Low Inputs, Sinking Outputs (Low-Side Switching)
    • 12 input and/or 12 output channels
    • 0 to 35V DC I/O range
    • 10 to 36V DC, 24V AC power
    • Modbus-RTU high-speed RS-485
    These modules provide twelve discrete input and/or output channels. Isolation separates the I/O, power, and network circuits. Network communication adheres to the industry-standard RS-485 Modbus-RTU protocol.    
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    904MB, 905MB, 906MB: Multi-Channel Discrete I/O Modules

    • Active-High Inputs, Sourcing Outputs (High-Side Switching)
    • 12 input and/or 12 output channels
    • 0 to 35V DC I/O range
    • 10 to 36V DC, 24V AC power
    • Modbus-RTU high-speed RS-485
    These modules provide twelve discrete input and/or output channels. Isolation separates the I/O, power, and network circuits. Network communication adheres to the industry-standard RS-485 Modbus RTU protocol.
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    961PB, 962PB: 6-Channel Differential Profibus-DP Input Modules

    • DC Current or DC Voltage Signals
    • 6 input channels, 0 to 20mA in 3 selectable ranges (0 to 20 amps AC with optinal AC sensor) or ±78mV to ±10V DC with eight range options
    • 12 to 36V DC power
    • Profibus-DP, RS-485 network up to 12Mbaud
    These modules provide an isolated Profibus-DP network interface for six analog input channels. Differential inputs eliminate ground loops and thus the need for isolators in any applications.
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    963PB, 964PB: 12-Channel Single-Ended Input Profibus-DP Modules

    • DC Current or DC Voltage Signals
    • 12 input channels, 0 to 20mA in 3 selectable ranges (0 to 20 amps AC with optinal AC sensor) or ±1V, ±5V or ±10V DC
    • 12 to 36V DC power
    • Profibus-DP, RS-485 network up to 12Mbaud
    These modules provide an isolated Profibus-DP network interface for twelve analog input channels. Compact design saves space and lowers system costs.
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    965PB: 4 or 6-Channel Thermocouple/mV Input Profibus-DP Modules

    • Thermocouple or Millivolt Signals
    • 4 or 6 input channels, thermocouple or DC millivolts (user-selectable)
    • 12 to 36V DC  power
    • Profibus-DP, RS-485 network up to 12Mbaud
    These modules provide an isolated Profibus-DP network interface for up to six input channels. Differential inputs eliminate ground noise.
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    966PB: 4 or 6-Channel RTD/Resistance Input Profibus-DP Modules

    • RTD or Resistance Signals
    • 4 or 6 input channels, Platinum 100 ohm, Nickel 120 ohm, Copper 10 ohm; 0 to 500 ohms resistance
    • 12 to 36V DC power
    • Profibus-DP, RS-485 network up to 12Mbaud
    These modules provide an isolated Profibus-DP network interface for up to six input channels. Multi-range inputs accept signals from a variety of sensors and devices.
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    972PB, 973PB: Analog Output Profibus-DP - RS485 Modules

    • 0 to 1mA, 0 to 20mA, or 4 to 20mA DC Current Output; 0 to 1V, 0 to 5V or 0 to 10V DC Output
    • 12 to 36V DC Power
    • Profibus-DP, RS-485 network up to 12Mbaud
    These modules provide up to six channels of analog output. Multi-range outputs support a wide variety of industrial devices.
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    ESW-MBLIB: Ethernet Modbus C Library Software

    • Universal support for five operating systems
    • C source code provided
    • Demo program included
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    SP233: Two-Wire Thermocouple / milliVolt Input Signal Splitter

    • Universal thermocouple or ±100mV input
    • 4-20mA outputs (sink/source)
    • 7-32V DC Loop/local power
    The SP233 model is a high-performance signal splitter that converts one millivolt or thermocouple sensor input into two proportional isolated 4-20mA control signals. Power is received from one or both output loop currents. Click here to watch a short video highlighting the features of the Acromag SP Series.
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    SP236: Two-Wire Current / milliVolt Input Signal Splitter

    • DC current and low voltage input
    • 4-20mA outputs (sink/source)
    • 7-32V DC loop power
    The SP236 model is a high-performance signal splitter that converts one DC current or millivolt input into two isolated proportional 4-20mA control signals. Power is received from one or both output loop currents. Click here to watch a short video highlighting the features of the Acromag SP Series.
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    SP237: Two-Wire Process Voltage Input Signal Splitter

    • Multi-range ±1V, ±5V, or ±10V input
    • 4-20mA outputs (sink/source)
    • 7-32V DC loop power
    The SP237 model is a high-performance signal splitter that converts one process-level DC voltage input into two proportional isolated 4-20mA control signals. Power is received from one or both output loop currents. Click here to watch a short video highlighting the features of the Acromag SP Series.
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Signal Conditioning Selection Guide Videos

Welcome to our Signal Conditioning Selection Guide Videos. As a business with many helpful products to offer, we know it can be difficult to find which one you need. This quick selection guide should help point you in the right direction. Choose which video corresponds to your power needs, and the guide will show you which Acromag modules will work with your input.

Learn more in this whitepaper: What is Ethernet/IP?

Output Loop Powered Transmitters Video

DC Powered Transmitters Options Video

AC Powered Transmitters

Alarms