Allen-Bradley 1756-CFM 2 Channel/2 Out Configurable Flowmeter (20Pin)
ALLEN-BRADLEY · I/O

1756-CFM

2 Channel/2 Out Configurable Flowmeter (20Pin)

2 Channel/2 Out Configurable Flowmeter (20Pin)

Catalog Number
1756-CFM
Product Family
ControlLogix I/O Modules
Platform
Chassis-Based I/O
Category
I/O
Product Type
Configurable I/O
TECHNICAL INFORMATION

1756-CFM technical information

Technical Specifications

Output typeIEC 1 A 24V DC
Isolation voltage250V (continuous), reinforced insulation type, I/O-to-backplane, 250V (continuous), basic insulation type, I/O group-to-group
Voltage type of supply voltageDC
Gate input voltage range5V ops: 4.5...5.5V DC @ 12/24V ops: 10...26.4V DC
On-state voltage drop, max0.6 Ω x current
Output voltage range, nom5V 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 sourceCustomer supplied
Current draw300mA @ 5.1V, 16mA @ 24V
Gate input on-state current, min4 mA
Gate input on-state current, nom15 mA
Off-state leakage current, max<300 µA @ 31.2V DC
Output current per point1 @ 10...31.2V DC @ 20mA @ 4.5...5.5V DC
Overload currentElectronic (<4 A)
Surge current2 A @ 50 ms, repeatable every 2s
Slot width1
APPLICATION / ENGINEERING

1756-CFM application and engineering notes

System Role

Interfaces field sensors and actuators with the controller at local or distributed I/O stations.

Selection Criteria

Check signal type, channel count, voltage/current, isolation, terminal base and environmental requirements.

Integration

Plan adapter, power segmentation, addressing, wiring, diagnostics and channel configuration before commissioning.

Migration / Modernization

Create an old-to-new I/O mapping and validate electrical characteristics and field behavior channel by channel.

DS Robotik evaluates product selection together with field conditions and system architecture, covering PLC/I/O architecture, panels, software, integration, commissioning and modernization.

PRODUCT STRUCTURE

1756-CFM system position

Allen-Bradley 1756-CFM is part of the ControlLogix I/O Modules product family on the Chassis-Based I/O platform.