1756-CFM
ControlLogix Config Flowmeter Module
Serial #:
This product has not been verified. Please {} to confirm authenticity.
register your product
Lifecycle status:
Active
Product at a glance
Description
2 Channel/2 Out Configurable Flowmeter (20Pin)
1756-CFM
ControlLogix Config Flowmeter Module
Serial #:
This product has not been verified. Please {} to confirm authenticity.
register your product
Lifecycle status:
Active
Product at a glance
Description
2 Channel/2 Out Configurable Flowmeter (20Pin)
Overview
Compliance & Environment
Standards & Protection
Electrical & Connectivity
Power & Electrical Characteristics
Inputs & Outputs (I/O)
Physical Characteristics
Mechanical
Construction
Drawings
Documents
Downloads
Certifications
Alternative Products
Technotes
| Unique Product Identifier |
1756-CFM
|
|---|---|
| UPC |
612598206698
|
| Estimated Lead Time |
147 days
|
| Standard Warranty Duration |
1 year See details |
| Country of Origin |
Multiple
|
| 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
|
| ESD immunity |
6 kV contact discharges, 8 kV air discharges
|
| Emissions |
IEC 61000-6-4
|
| Nonoperating temperature |
-40 °C
|
| North American temperature code |
T4
|
| Operating temperature |
0 to 60 °C
|
| 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
|
| Relative humidity |
5...95% noncondensing
|
| 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
|
| Surrounding air temperature, max |
60 °C
|
| Current draw |
300mA @ 5.1V, 16mA @ 24V
|
|---|---|
| Digital inputs configurable |
True
|
| Digital outputs configurable |
False
|
| Frequency |
Resolution: 0.0005 Hz
|
| High resolution, max |
100 khz
|
| 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
|
| Module keying |
Electronic, software configurable
|
| Outputs |
2 current sourcing
|
| Power dissipation, max |
6 W @ 60 °C (140 °F)
|
| Redundancy |
False
|
| Short-circuit protection, outputs available |
False
|
| Suitable for safety functions |
False
|
| Thermal dissipation |
20.4 btu/h
|
| Total backplane power |
1.7 W
|
| Type of electric connection |
Screw connection
|
| Voltage type of supply voltage |
DC
|
| Wire category |
2 on signal ports, 1 on power ports
|
I/O Specifications
| Count range, max |
2, 147, 483, 647
|
|---|---|
| Filtering (inputs F0 & F1) |
Firmware selectable: high-speed 100 kHz or low-pass filter for frequencies <70 Hz
|
| Flowmeter input impedance |
5 kΩ ±30% resistive
|
| 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
|
| Gate input on-state current, min |
4 mA
|
| Gate input on-state current, nom |
15 mA
|
| Gate input voltage range |
5V ops: 4.5...5.5V DC @ 12/24V ops: 10...26.4V DC
|
| Input frequency, max |
100 kHz @ flowm inputs (overrange occurs at 100 kHz)
|
| Input sampling period |
User selectable
|
| Mechanical filter debouncing (Z0 & Z1 Inputs) |
Software selectable
|
Output Signals
| Off-state leakage current, max |
<300 µA @ 31.2V DC
|
|---|---|
| On-state voltage drop, max |
0.6 Ω x current
|
| 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 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 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 type |
IEC 1 A 24V DC
|
| 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
|
| Output voltage source |
Customer supplied
|
| Overload current |
Electronic (<4 A)
|
| Reverse polarity protection |
Outputs only
|
| Surge current |
2 A @ 50 ms, repeatable every 2s
|
Mechanical
| RTB keying |
User-defined mechanical
|
|---|---|
| Shock |
Operating: 30 G, Non operating: 50 G
|
| Slot width |
1
|
| Vibration |
2 G @ 10...500 Hz
|
Construction
| Enclosure type |
None (open-style)
|
|---|---|
| Totalizer fill and prover |
True
|
| 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.
Sign In
| General | Publication |
|---|---|
| Selection Guide | 1756-SG001 |
| Product Cutsheet | -- |
| Technical Detail | -- |
| Technical Data | Publication |
|---|---|
| 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
Search the Literature Library
Available Downloads
- EDS files for 1756-CFM (multi)
- EDS files for ControlLogix Family (multi)
- Firmware for 1756-CFM v3.011
- AOP - Add On Profiles for 1756-CFM v40.10.06
- AOP - Add On Profiles for 1756-CFM v40.10.07
This product was certified with the above certifications as of 2026-08-11. 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 certification documents?
Explore certifications for this product and more in our comprehensive Literature Library.
Regulatory Information
| EU Importer Address |
Rockwell Automation N.V |
|---|---|
| EU Authorized Representative Address |
Rockwell Automation N.V |
Items Per Page:
| Technotes |
|---|
Looking for more Technotes?
Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.
Search Knowledgebase
Overview
| Unique Product Identifier |
1756-CFM
|
|---|---|
| UPC |
612598206698
|
| Estimated Lead Time |
147 days
|
| Standard Warranty Duration |
1 year See details |
| Country of Origin |
Multiple
|
Compliance & Environment
| 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
|
| ESD immunity |
6 kV contact discharges, 8 kV air discharges
|
| Emissions |
IEC 61000-6-4
|
| Nonoperating temperature |
-40 °C
|
| North American temperature code |
T4
|
| Operating temperature |
0 to 60 °C
|
| 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
|
| Relative humidity |
5...95% noncondensing
|
| 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
|
| Surrounding air temperature, max |
60 °C
|
Electrical & Connectivity
| Current draw |
300mA @ 5.1V, 16mA @ 24V
|
|---|---|
| Digital inputs configurable |
True
|
| Digital outputs configurable |
False
|
| Frequency |
Resolution: 0.0005 Hz
|
| High resolution, max |
100 khz
|
| 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
|
| Module keying |
Electronic, software configurable
|
| Outputs |
2 current sourcing
|
| Power dissipation, max |
6 W @ 60 °C (140 °F)
|
| Redundancy |
False
|
| Short-circuit protection, outputs available |
False
|
| Suitable for safety functions |
False
|
| Thermal dissipation |
20.4 btu/h
|
| Total backplane power |
1.7 W
|
| Type of electric connection |
Screw connection
|
| Voltage type of supply voltage |
DC
|
| Wire category |
2 on signal ports, 1 on power ports
|
I/O Specifications
| Count range, max |
2, 147, 483, 647
|
|---|---|
| Filtering (inputs F0 & F1) |
Firmware selectable: high-speed 100 kHz or low-pass filter for frequencies <70 Hz
|
| Flowmeter input impedance |
5 kΩ ±30% resistive
|
| 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
|
| Gate input on-state current, min |
4 mA
|
| Gate input on-state current, nom |
15 mA
|
| Gate input voltage range |
5V ops: 4.5...5.5V DC @ 12/24V ops: 10...26.4V DC
|
| Input frequency, max |
100 kHz @ flowm inputs (overrange occurs at 100 kHz)
|
| Input sampling period |
User selectable
|
| Mechanical filter debouncing (Z0 & Z1 Inputs) |
Software selectable
|
Output Signals
| Off-state leakage current, max |
<300 µA @ 31.2V DC
|
|---|---|
| On-state voltage drop, max |
0.6 Ω x current
|
| 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 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 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 type |
IEC 1 A 24V DC
|
| 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
|
| Output voltage source |
Customer supplied
|
| Overload current |
Electronic (<4 A)
|
| Reverse polarity protection |
Outputs only
|
| Surge current |
2 A @ 50 ms, repeatable every 2s
|
Physical Characteristics
Mechanical
| RTB keying |
User-defined mechanical
|
|---|---|
| Shock |
Operating: 30 G, Non operating: 50 G
|
| Slot width |
1
|
| Vibration |
2 G @ 10...500 Hz
|
Construction
| Enclosure type |
None (open-style)
|
|---|---|
| Totalizer fill and prover |
True
|
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.
Sign In
Documents
|
Selection Guide
General
1756-SG001 |
|
Product Cutsheet
General
-- |
|
Technical Detail
General
-- |
|
1756-td002_-en-e
Technical Data
1756-TD002 |
| General | Publication |
|---|---|
| Selection Guide | 1756-SG001 |
| Product Cutsheet | -- |
| Technical Detail | -- |
| Technical Data | Publication |
| 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
Search the Literature Library
Downloads
Available Downloads
- EDS files for 1756-CFM (multi)
- EDS files for ControlLogix Family (multi)
- Firmware for 1756-CFM v3.011
- AOP - Add On Profiles for 1756-CFM v40.10.06
- AOP - Add On Profiles for 1756-CFM v40.10.07
Certifications
This product was certified with the above certifications as of 2026-08-11. 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 certification documents?
Explore certifications for this product and more in our comprehensive Literature Library.
Regulatory Information
| EU Importer Address |
Rockwell Automation N.V |
|---|---|
| EU Authorized Representative Address |
Rockwell Automation N.V |
Alternative Products
Items Per Page:
Technotes
| Technotes |
|---|
Looking for more Technotes?
Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.
Search Knowledgebase
Multiple countries of origin based on manufacturing location
ControlLogix Config Flowmeter Module
1756-CFM
Close
Print
Copyright ©2026 Rockwell Automation, Inc.