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Product short description:
  • 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

Description

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. High-resolution, low noise, A/D converters deliver high accuracy and reliability. 3-way isolation further improves the system performance.

Input Ranges

RTD (user-selectable type):
2-wire and 3-wire RTDs are supported.
Platinum 100 ohm (alpha = 1.3850 or 1.3911)
Nickel 120 ohm
Copper 10 ohm
Resistance: 0 to 500 ohms
Network Communication: Profibus-DP, RS-485 network up to 12Mbaud
Power Requirement: 12 to 36V DC supply required
Approvals:
Profibus PNO certified
CE marked. UL, cUL listed
Class I; Division 2; Groups A, B, C, D

Performance

Input

Configuration: Input ranges are selectable for a 3-channel group.
Accuracy
Input Type        Input Range              Accuracy (typical)
Pt 100 ohm          -200 to 850°C                          ±0.25°C
Ni 120 ohm            -80 to 320°C                          ±0.25°C
Cu 10 ohm            -200 to 260°C                          ±1.25°C
Resistance               0 to 500 ohms                   ±0.05 ohms

RTD Break Detection: Upscale or downscale selection applies to all channels.
Analog to Digital Converter (A/D): 16-bit A/D converter

Noise Rejection:
Normal Mode: Better than 40dB @ 60Hz.
Common Mode: Better than 130dB @ 60Hz.
Input Filter Bandwidth: -3dB at 3Hz, typical
Excitation Current: 1mA DC typical, all RTD types

Environmental

Ambient Temperature:
Operating: -25 to 70°C (-13 to 158°F)
Storage: -40 to 85°C (-40 to 185°F)
Relative Humidity: 5 to 95%, non-condensing
Isolation:
1500V AC for 60 seconds or 250V AC continuous.
3-way isolation between I/O, network, and power.
Inputs share a common.

  • Standard Profibus-DP network communication with industry-standard ASIC (Siemens SPC3)
  • 6-input stand-alone module has much lower start-up cost than multi-piece block I/O systems
  • Versatile RTD or ohmic inputs support a wide variety of industrial sensors and devices
  • RTD break detection (upscale or downscale) identifies sensor wiring failures
  • High-resolution 16-bit Sigma-Delta A/D converters ensure precise, high accuracy measurements
  • Compact packaging with pluggable terminals saves space and simplifies wiring
  • Wide operational temperature range permits installation in extreme environments: -25 to 70°C (-13 to 158°F)
Profibus DP an Introduction White Paper - 8500698 (Log in to view the file)
Introduction to Profibus DP The following information describes the operation of Profibus DP as it relates to Acromag Series 900PB DP slave I/O modules. Acromag manufactures a line of I/O modules that support Profibus DP over RS485.
How to Monitor Stator Temperatures with Remote Profibus I/O - 8400849
Monitoring Stator Temperatures with Remote Profibus I/O Defining the Problem: A Power Plant has Hydroelectric Generators with 10 ohm copper 3 wire RTDs embedded in the stator motor windings. The RTDs are far away from a PLC in the control room. The long distance is picking up noise that is interfering with their measurements. System...

Manuals

966PB User Manual (Log in to download the file)

Profibus-DP GSD Files Download (Log in to download the file)
  • Compare

    PS5R: Slim Line Power Supplies

    • 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
    • Universal Input (85-264V AC / 100-370V DC)
    • Lightweight and compact size
     
    Select options
  • Compare

    Terminal Block Replacements

    • Simplifies wiring connections on Acromag I/O Modules
    • Barrier strip or spring clamp terminal block kits
    • Provide safe and secure wiring connections
    Select options

Additional information

Weight 10 oz
Dimensions 4.75 × 1.25 × 4.5 in
Part Number

966PB-2004: 4-channel, 966PB-2006: 6-channel

Communication

Profibus-DP, RS-485 communication

Product Series

BusWorks 900PB Series

  • Description

    Description

    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. High-resolution, low noise, A/D converters deliver high accuracy and reliability. 3-way isolation further improves the system performance.

    Input Ranges

    RTD (user-selectable type):
    2-wire and 3-wire RTDs are supported.
    Platinum 100 ohm (alpha = 1.3850 or 1.3911)
    Nickel 120 ohm
    Copper 10 ohm
    Resistance: 0 to 500 ohms
    Network Communication: Profibus-DP, RS-485 network up to 12Mbaud
    Power Requirement: 12 to 36V DC supply required
    Approvals:
    Profibus PNO certified
    CE marked. UL, cUL listed
    Class I; Division 2; Groups A, B, C, D

    Performance

    Input

    Configuration: Input ranges are selectable for a 3-channel group.
    Accuracy
    Input Type        Input Range              Accuracy (typical)
    Pt 100 ohm          -200 to 850°C                          ±0.25°C
    Ni 120 ohm            -80 to 320°C                          ±0.25°C
    Cu 10 ohm            -200 to 260°C                          ±1.25°C
    Resistance               0 to 500 ohms                   ±0.05 ohms

    RTD Break Detection: Upscale or downscale selection applies to all channels.
    Analog to Digital Converter (A/D): 16-bit A/D converter

    Noise Rejection:
    Normal Mode: Better than 40dB @ 60Hz.
    Common Mode: Better than 130dB @ 60Hz.
    Input Filter Bandwidth: -3dB at 3Hz, typical
    Excitation Current: 1mA DC typical, all RTD types

    Environmental

    Ambient Temperature:
    Operating: -25 to 70°C (-13 to 158°F)
    Storage: -40 to 85°C (-40 to 185°F)
    Relative Humidity: 5 to 95%, non-condensing
    Isolation:
    1500V AC for 60 seconds or 250V AC continuous.
    3-way isolation between I/O, network, and power.
    Inputs share a common.

  • Features & Benefits

    • Standard Profibus-DP network communication with industry-standard ASIC (Siemens SPC3)
    • 6-input stand-alone module has much lower start-up cost than multi-piece block I/O systems
    • Versatile RTD or ohmic inputs support a wide variety of industrial sensors and devices
    • RTD break detection (upscale or downscale) identifies sensor wiring failures
    • High-resolution 16-bit Sigma-Delta A/D converters ensure precise, high accuracy measurements
    • Compact packaging with pluggable terminals saves space and simplifies wiring
    • Wide operational temperature range permits installation in extreme environments: -25 to 70°C (-13 to 158°F)
  • Tech Papers

    Profibus DP an Introduction White Paper - 8500698 (Log in to view the file)
    Introduction to Profibus DP The following information describes the operation of Profibus DP as it relates to Acromag Series 900PB DP slave I/O modules. Acromag manufactures a line of I/O modules that support Profibus DP over RS485.
    How to Monitor Stator Temperatures with Remote Profibus I/O - 8400849
    Monitoring Stator Temperatures with Remote Profibus I/O Defining the Problem: A Power Plant has Hydroelectric Generators with 10 ohm copper 3 wire RTDs embedded in the stator motor windings. The RTDs are far away from a PLC in the control room. The long distance is picking up noise that is interfering with their measurements. System...
  • Specs & Data Sheets

    Manuals

    966PB User Manual (Log in to download the file)

  • Software

    Profibus-DP GSD Files Download (Log in to download the file)
  • Accessories

    • Compare

      PS5R: Slim Line Power Supplies

      • 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
      • Universal Input (85-264V AC / 100-370V DC)
      • Lightweight and compact size
       
      Select options
    • Compare

      Terminal Block Replacements

      • Simplifies wiring connections on Acromag I/O Modules
      • Barrier strip or spring clamp terminal block kits
      • Provide safe and secure wiring connections
      Select options
  • Additional information

    Additional information

    Weight 10 oz
    Dimensions 4.75 × 1.25 × 4.5 in
    Part Number

    966PB-2004: 4-channel, 966PB-2006: 6-channel

    Communication

    Profibus-DP, RS-485 communication

    Product Series

    BusWorks 900PB Series