Allen-Bradley 1756-CFM, Руководство пользователя

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30 Rockwell Automation Publication 1756-UM010C-EN-P - June 2021
Chapter 3 Configurable Flowmeter Module Features and Operational Modes
Gate Inputs
The module offers two gate inputs (Z0 & Z1). You can wire the inputs for
single-ended or differential applications and can accept signals at 5V DC or 12-
24V DC.
User-Defined Preset and Rollover Values
The module has a maximum count of 2,147,483,647, but you can define the
rollover values below this limit.
Current-Sourcing Outputs
Two current-sourcing outputs are available on the module. Each output:
• can be tied to any Flowmeter input.
• operates in the 10-31.2V DC range (1A maximum per output).
• operates at 5V DC level (3-20mA maximum per output).
Choosing an
Operational Mode
The module counts pulses from Flowmeters and operates in these modes:
• High Resolution Frequency mode
• Totalizer mode
You must choose an operational mode for your 1756-CFM module in the
programming software.
IMPORTANT The Z0 and Z1 inputs can have different voltages connected to them
simultaneously.