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Allen Bradley

ControlLogix Config Flowmeter Module

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Catalog #: 1756-CFM
Lifecycle status: Active
Allen-Bradley 1756-CFM product image
Allen-Bradley 1756-CFM product image
Allen-Bradley 1756-CFM product image
Allen Bradley
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Lifecycle status: Active
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Technical Specifications
Drawings
Documents
Downloads
Certifications
Technotes
Suitable for safety functions False
Digital inputs configurable True
Digital outputs configurable False
Voltage type of supply voltage DC
Type of electric connection Screw connection
Total backplane power 1.7 W
Thermal dissipation 20.4 btu/h
Current draw 300mA @ 5.1V, 16mA @ 24V
Module keying Electronic, software configurable
Outputs 2 current sourcing
Power dissipation, max 6 W @ 60 °C (140 °F)
Inputs Two flowm (F) inputs used for all modes, Two gate inputs used in Totalizer mode for prover/store count, 4 (2 per channel)
Isolation voltage 250V (continuous), reinforced insulation type, I/O-to-backplane, 250V (continuous), basic insulation type, I/O group-to-group
Wire category 2 on signal ports, 1 on power ports
Redundancy False
Short-circuit protection, outputs available False
High resolution, max 100 khz
Frequency Resolution: 0.0005 Hz
Slot width 1
RTB keying User-defined mechanical
Shock Operating: 30 G, Non operating: 50 G
Vibration 2 G @ 10...500 Hz
Surrounding air temperature, max 60 °C
North American temperature code T4
Emissions IEC 61000-6-4
ESD immunity 6 kV contact discharges, 8 kV air discharges
Relative humidity 5...95% noncondensing
Conducted RF immunity 10V rms with 1 kHz sine wave 80% AM from 150 kHz...80 MHz on shielded signal ports
EFT/B immunity ±4kV @ 5kHz on unshielded output and power ports, ±4kV @ 5kHz on shielded input ports
Operating temperature 0 to 60 °C
Surge transient immunity ±1 kV line-line (DM) and ±2 kV line-earth (CM) on unshielded output and power ports, ±2 kV line-earth (CM) on shielded input ports
Radiated RF immunity 10 V/m with 1 kHz sine-wave 80% AM from 80...2000 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 1890 MHz, 3 V/m with 1 kHz sine-wave 80% AM from 2000...2700 MHz
Nonoperating temperature -40 °C
On-state voltage drop, max 0.6 Ω x current
Off-state leakage current, max <300 µA @ 31.2V DC
Reverse polarity protection Outputs only
Output switching time <50 µs turn on, <300 µs turn off, Outputs triggered by Total, all other “turn-on” and “turn-off” times <1 ms
Output control Any number of outputs is assignable to any of two flowm channels each output can have 2 “turn-on” and “turn-off” preset values
Output type IEC 1 A 24V DC
Output voltage source Customer supplied
Overload current Electronic (<4 A)
Surge current 2 A @ 50 ms, repeatable every 2s
Output current per point 1 @ 10...31.2V DC @ 20mA @ 4.5...5.5V DC
Output reverse polarity protection Yes (if wired incorrectly, module outputs can be permanently disabled.)
Output short circuit protection Electronic (no indication of fault. remove overload and toggle output on/off to restore.)
Output voltage range, nom 5V ops: 4.5...5.5V DC @ 3...20mA load per point, 12/24V ops: 10...31.2V DC @ 40mA...1 A load per point
Input frequency, max 100 kHz @ flowm inputs (overrange occurs at 100 kHz)
Gate input on-state current, min 4 mA
Gate input on-state current, nom 15 mA
Input sampling period User selectable
Count range, max 2, 147, 483, 647
Flowmeter input impedance 5 kΩ ±30% resistive
Mechanical filter debouncing (Z0 & Z1 Inputs) Software selectable
Gate input voltage range 5V ops: 4.5...5.5V DC @ 12/24V ops: 10...26.4V DC
Filtering (inputs F0 & F1) Firmware selectable: high-speed 100 kHz or low-pass filter for frequencies <70 Hz
Flowmeter input voltage ±30V, selectable input thresholds of 50mV @ 1.3V and 4V: ±30V peak unterminated open circuit voltage, magnetic pickup, TTL compatible, input voltage >1.3V DC is Logic 1 and -0.7...1.3V DC is Logic 0, 12...24V DC powered preA output, 4V DC threshold
Totalizer fill and prover True
Enclosure type None (open-style)
Sales Info
Repairable REPAIRABLE
Preferred Availability false
Quick Turnaround false
Dimension Height 5.715
Lead Time 5
Dimension Width 18.415
Dimension Length 23.495
Stock Status STOCKED
Weight 0.354
Weight Unit KG
Dimension Unit CM
Drawings
Product Drawing Drawing (DWG)
Product Drawing Drawing (DWG)
Product Drawing Drawing (DWG)
Drawings
Product Drawing Drawing (DWG)
Product Drawing Drawing (DWG)
Product Drawing Drawing (DWG)
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类型 资源 发布
General Selection Guide 1756-SG001
General Product Cutsheet --
General Technical Detail --
Technical Data 1756-td002_-en-e 1756-TD002
Looking for more documentation?
Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.
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Available Downloads
  • EDS files for 1756-CFM (multi)
  • EDS files for ControlLogix Family (multi)
  • Firmware for 1756-CFM v3.011
  • AOP for 1756-CFM v40.10.00
  • AOP - Add On Profiles for 1756-CFM v40.10.06
  • AOP - Add On Profiles for 1756-CFM v40.10.07
See All Downloads Chevron RightChevron Right
UL Listed ATEX IECEx Scheme China CCC Australian RCM
  • UL Listed
  • ATEX
  • UL Listed Hazardous
  • IECEx Scheme
  • China CCC
  • Australian RCM
  • CE

This product was certified with the above certifications as of 2025-05-23. Products sold before or after this date might carry different certifications. Please review the product label to check for the certifications your specific product carries.

Looking for more Technotes?
Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.
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Technical Specifications
Suitable for safety functions False
Digital inputs configurable True
Digital outputs configurable False
Voltage type of supply voltage DC
Type of electric connection Screw connection
Total backplane power 1.7 W
Thermal dissipation 20.4 btu/h
Current draw 300mA @ 5.1V, 16mA @ 24V
Module keying Electronic, software configurable
Outputs 2 current sourcing
Power dissipation, max 6 W @ 60 °C (140 °F)
Inputs Two flowm (F) inputs used for all modes, Two gate inputs used in Totalizer mode for prover/store count, 4 (2 per channel)
Isolation voltage 250V (continuous), reinforced insulation type, I/O-to-backplane, 250V (continuous), basic insulation type, I/O group-to-group
Wire category 2 on signal ports, 1 on power ports
Redundancy False
Short-circuit protection, outputs available False
High resolution, max 100 khz
Frequency Resolution: 0.0005 Hz
Slot width 1
RTB keying User-defined mechanical
Shock Operating: 30 G, Non operating: 50 G
Vibration 2 G @ 10...500 Hz
Surrounding air temperature, max 60 °C
North American temperature code T4
Emissions IEC 61000-6-4
ESD immunity 6 kV contact discharges, 8 kV air discharges
Relative humidity 5...95% noncondensing
Conducted RF immunity 10V rms with 1 kHz sine wave 80% AM from 150 kHz...80 MHz on shielded signal ports
EFT/B immunity ±4kV @ 5kHz on unshielded output and power ports, ±4kV @ 5kHz on shielded input ports
Operating temperature 0 to 60 °C
Surge transient immunity ±1 kV line-line (DM) and ±2 kV line-earth (CM) on unshielded output and power ports, ±2 kV line-earth (CM) on shielded input ports
Radiated RF immunity 10 V/m with 1 kHz sine-wave 80% AM from 80...2000 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz, 10 V/m with 200 Hz 50% Pulse 100% AM @ 1890 MHz, 3 V/m with 1 kHz sine-wave 80% AM from 2000...2700 MHz
Nonoperating temperature -40 °C
On-state voltage drop, max 0.6 Ω x current
Off-state leakage current, max <300 µA @ 31.2V DC
Reverse polarity protection Outputs only
Output switching time <50 µs turn on, <300 µs turn off, Outputs triggered by Total, all other “turn-on” and “turn-off” times <1 ms
Output control Any number of outputs is assignable to any of two flowm channels each output can have 2 “turn-on” and “turn-off” preset values
Output type IEC 1 A 24V DC
Output voltage source Customer supplied
Overload current Electronic (<4 A)
Surge current 2 A @ 50 ms, repeatable every 2s
Output current per point 1 @ 10...31.2V DC @ 20mA @ 4.5...5.5V DC
Output reverse polarity protection Yes (if wired incorrectly, module outputs can be permanently disabled.)
Output short circuit protection Electronic (no indication of fault. remove overload and toggle output on/off to restore.)
Output voltage range, nom 5V ops: 4.5...5.5V DC @ 3...20mA load per point, 12/24V ops: 10...31.2V DC @ 40mA...1 A load per point
Input frequency, max 100 kHz @ flowm inputs (overrange occurs at 100 kHz)
Gate input on-state current, min 4 mA
Gate input on-state current, nom 15 mA
Input sampling period User selectable
Count range, max 2, 147, 483, 647
Flowmeter input impedance 5 kΩ ±30% resistive
Mechanical filter debouncing (Z0 & Z1 Inputs) Software selectable
Gate input voltage range 5V ops: 4.5...5.5V DC @ 12/24V ops: 10...26.4V DC
Filtering (inputs F0 & F1) Firmware selectable: high-speed 100 kHz or low-pass filter for frequencies <70 Hz
Flowmeter input voltage ±30V, selectable input thresholds of 50mV @ 1.3V and 4V: ±30V peak unterminated open circuit voltage, magnetic pickup, TTL compatible, input voltage >1.3V DC is Logic 1 and -0.7...1.3V DC is Logic 0, 12...24V DC powered preA output, 4V DC threshold
Totalizer fill and prover True
Enclosure type None (open-style)
Sales Info
Repairable REPAIRABLE
Preferred Availability false
Quick Turnaround false
Dimension Height 5.715
Lead Time 5
Dimension Width 18.415
Dimension Length 23.495
Stock Status STOCKED
Weight 0.354
Weight Unit KG
Dimension Unit CM
Drawings
Drawings
Product Drawing Drawing (DWG)
Product Drawing Drawing (DWG)
Product Drawing Drawing (DWG)
Drawings
Product Drawing Drawing (DWG)
Product Drawing Drawing (DWG)
Product Drawing Drawing (DWG)
Sign in to your Rockwell Automation account to view and download technical drawings.
登录
文档
Selection Guide General
1756-SG001
Product Cutsheet General
--
Technical Detail General
--
1756-td002_-en-e Technical Data
1756-TD002
类型 资源 发布
General Selection Guide 1756-SG001
General Product Cutsheet --
General Technical Detail --
Technical Data 1756-td002_-en-e 1756-TD002
Looking for more documentation?
Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.
Visit the Technical Documentation Center Chevron RightChevron Right Search the Literature Library Chevron RightChevron Right
下载
Available Downloads
  • EDS files for 1756-CFM (multi)
  • EDS files for ControlLogix Family (multi)
  • Firmware for 1756-CFM v3.011
  • AOP for 1756-CFM v40.10.00
  • AOP - Add On Profiles for 1756-CFM v40.10.06
  • AOP - Add On Profiles for 1756-CFM v40.10.07
See All Downloads Chevron RightChevron Right
认证
UL Listed ATEX IECEx Scheme China CCC Australian RCM
  • UL Listed
  • ATEX
  • UL Listed Hazardous
  • IECEx Scheme
  • China CCC
  • Australian RCM
  • CE

This product was certified with the above certifications as of 2025-05-23. Products sold before or after this date might carry different certifications. Please review the product label to check for the certifications your specific product carries.

Technotes
Looking for more Technotes?
Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.
Search Knowledgebase Chevron RightChevron Right
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