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 17 results

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    NT2610: Ethernet Thermocouple milliVolt Input Modules with Discrete I/O

    • 8 thermocouple / mV inputs
    • 2 discrete I/O
    • Ethernet I/O plus Expansion I/O
    • Multi-protocol support
    NT2610 Ethernet thermocouple modules and Ethernet millivolt modules offer 8 TC / mV inputs and 2 bidirectional discrete digital I/O channels. Each input can support a variety of sensor types. Click here to watch a short video highlighting the features of the BusWorks NT Series.
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    NT2620: Ethernet RTD/Resistance Input Modules with Discrete I/O

    • 4 RTD/resistance inputs
    • 2 discrete I/O
    • Ethernet I/O plus Expansion I/O
    • Multi-protocol support
    NT2620 modules offer 4 RTD/resistance inputs and 2 bidirectional discrete digital I/O channels. Each input can support RTD or resistance sensor types. NTE Ethernet models provide a network interface to monitor temperature levels. Click here to watch a short video highlighting the benefits of the NT1620.
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    VPM3000 Series: Universal Transmitter / Alarm with Display

    • Big, bright display
    • 4-20mA, ±10V, thermocouple, or RTD input
    • 4-20mA, Modbus serial, or alarm relay output options
    Acromag VPM3000 Vertuâ„¢ digital panel meters are among the most versatile on the market and able to operate as a transmitter and/or alarm to satisfy a wide variety of process and temperature applications. Learn more about the VPM3000 by watching this short video.
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    633T: AC/DC-Powered Signal Splitter

    • Single input, dual output (splitter)
    • 12-36V DC SELV, 90-250V AC
    • Provides two identical outputs from one input signal
    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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    913MB, 914MB: DC Current/Voltage Modbus-RTU Input Module with Limit Alarms

    • 4 input channels
    • 0 to 20mA DC (0 to 20A AC with AC sensor) or ±10V DC input range
    • 4 alarm channels, open drain MOSFETS (1A DC loads, 0 to 35V DC)
    • 10 to 36V DC, 24V AC power
    • Modbus RTU high-speed RS-485
    This signal conditioner is a four-channel analog input module with four discrete outputs. It provides isolation between input, output, power, and network circuits.
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    917MB, 918MB: DC Current/Voltage Modbus-RTU Output Modules with Discrete Outputs

    • 4 analog output channels
    • 0 to 20mA or 0 to 10V DC output range
    • 4 discrete output channels, open drain MOSFETS (1A DC loads, 0 to 35V DC)
    • 10 to 36V DC, 24V AC power
    • Modbus RTU high-speed RS-485
    These modules drive four analog output channels and also feature four discrete outputs for on/off control. Isolation separates the output, power, and network circuits. Network communication adheres to the industry-standard RS-485 Modbus RTU protocol.
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    924MB: Thermocouple/milliVolt Modbus-RTU Input Module with Limit Alarms

    • 4 input channels, thermocouple (types J, K, T, R, S, E, B, N) or millivolt (±100mV DC) input
    • 4 alarm channels, open drain MOSFETS (1A DC loads, 0 to 35V DC)
    • 10 to 36V DC, 24V AC power
    • Modbus-RTU high-speed RS-485
    This signal conditioner is a four-channel analog input module with four discrete outputs. It filters and linearizes thermocouple inputs while providing isolation between input, output, power, and network circuits. Cold junction compensation and upscale/downscale sensor break detection are standard.  
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    932MB, 934MB: RTD/Resistance Modbus-RTU Input Modules with Limit Alarms or Discrete Outputs

    • 2 or 4 input channels, RTD (100 ohm Pt, 120 ohm Ni, 10 ohm Cu) or resistance (0 to 500 ohms) input
    • Solid-state relays discrete output, Form A, SPST-NO
    • 10 to 36V DC, 24V AC power
    • Modbus-RTU high-speed RS-485
    This signal conditioner is a dual or quad-channel analog input module with one discrete/relay output per input channel and a Modbus interface. It filters and linearizes RTD or resistance inputs while providing isolation between input, output, power, and network circuits.
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    942MB: Frequency/Pulse Counter Modbus-RTU Input Modules with Periodic or Pulse Waveform Input

    • 2 input channels, 0 to 50KHz in 3 selectable ranges: Amplitudes up to 140V AC peak, Amplitudes up to 200V peak, Pulse counter range of 0 to 65535
    • Solid-state discrete output relays (1A DC loads), 0 to 48V DC
    • 10 to 36V DC, 24V AC power
    • Modbus-RTU high-speed RS-485
    This signal conditioner is a two-channel analog input module with discrete outputs and Modbus communication. It conditions periodic or pulse waveform inputs and provides solid-state relays for limit alarms or ON/OFF control.
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    951EN, 952EN: Ethernet Analog and Discrete I/O Modules

    • 4 analog inputs
    • 2 analog output
    • 6 discrete I/O channels
    • Ethernet/IP, Modbus TCP/IP
    • i2o peer-to-peer available for Modbus TCP/IP only
    These modules provide an isolated Ethernet network interface for analog and discrete I/O signals. Multi-range analog inputs and outputs support a wide variety of industrial devices. High-resolution, low noise, A/D and D/A converters deliver high accuracy and reliability.
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    965EN: Ethernet Thermocouple milliVolt Input Modules

    • 4 or 6-channel thermocouple/milliVolt input
    • Ethernet/IP, Modbus TCP/IP
    • i2o peer-to-peer available for Modbus TCP/IP 6-channel only
    These modules provide an isolated Ethernet network interface for up to six input channels. Differential inputs eliminate ground noise and each terminal block includes a cold junction compensation (CJC) sensor for more precise temperature measurements. Multi-range inputs accept signals from a variety of sensors and devices. High-resolution, low noise, A/D converters deliver high accuracy and reliability.    
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    966EN: Ethernet RTD Resistance Input Modules

    • 4 or 6-channel RTD/resistance input
    • Ethernet/IP, Modbus TCP/IP
    • i2o peer-to-peer available for Modbus TCP/IP 6-channel only
    These modules provide an isolated Ethernet network interface for up to six input channels. Multi-range inputs accept signals from a variety of sensors and devices. High-resolution, low noise, A/D converters deliver high accuracy and reliability. Three-way isolation further improves the system performance.  
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    NT2510 and NT2530: Ethernet Multi-Function I/O Modules

    • 4 analog inputs
    • 2 analog outputs
    • 4 discrete I/O
    • Ethernet I/O plus Expansion I/O
    • Multi-protocol support
    NT2510 modules offer 4 current inputs, 2 current outputs, and 4 discrete I/O channels. NT2530 models have voltage input. NTE Ethernet models provide a network interface to monitor and control I/O signals. Appending NTX expansion models can interface up to 24 analog and 16 discrete I/O on a single IP address. Click here to watch a short video highlighting the features of the BusWorks NT Series.
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    SP333: Four-Wire Thermocouple / milliVolt Splitter

    • Universal thermocouple or ±100mV input
    • 0-20mA, ±10V or 0-10V outputs
    • 6-32V DC external power
    The SP333 is a high-performance signal splitter that converts one millivolt or thermocouple input into two isolated proportional control signals. A variety of current and voltage output ranges are supported. Click here to watch a short video highlighting the features of the Acromag SP Series.
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    SP336: Four-Wire Current / milliVolt Signal Splitter

    • DC current and low voltage input
    • 0-20mA, ±10V outputs
    • 6-32V DC external power
    The SP336 is a high-performance signal splitter that converts one DC current or millivolt input into two isolated proportional control signals. A variety of current and voltage output ranges are supported. Power connects on a terminal block, a rail bus, or both for redundancy. Click here to watch a short video highlighting the features of the Acromag SP Series.
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    SP337: Four-wire Process Voltage Input Signal Splitter

    • Multi-range ±1V, ±5V, or ±10V input
    • 0-20mA, ±10V or 0-10V outputs
    • 6-32V DC external power
    The SP337 is a high-performance signal splitter that converts one process-level DC voltage input into two isolated proportional control signals. A variety of current and voltage output ranges are supported. 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