The 1756-WM is a weighing module designed to directly plug into the Allen-Bradley 1756 ControlLogix chassis.
Intended for inventory measurement and process control, the 1756-WM offers users simple configuration and is suitable for tank, silo, vessel and hopper weighing in the United States and Canadian markets.
The weighing module seamlessly integrates weighing into the Allen-Bradley PLC by directly fitting into a single slot in the 1756 ControlLogix chassis via a screw connection plug. The weighing module is powered from the input/output chassis backplane and needs only the load cells for connection.
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BLH Nobel 1756 WM Dual-channel Plug-in Weighing Module for the Rockwell 1756 ControlLogix Chassis
1. Technical contact: blhnobel.usa@vpgsensors.com,
Europe: blhnobel.eur@vpgsensors.com, Asia: blhnobel.asia@vpgsensors.com
Document No.: 41506
Revision: 21-Feb-2018
www.blhnobel.com
1
BLH Nobel-1756-WM
Dual-ChannelPlug-InWeighingModulefortheRockwell1756ControlLogixChassisDual-Channel Plug-In Weighing Module for the
Rockwell 1756 ControlLogix Chassis
FEATURES
• Integrates weighing into an Allen-Bradley®
PLC
• The BLH Nobel 1756-WM module is designed to
directly plug into a Rockwell®
1756 ControlLogix®
chassis
• Coniguration and calibration through the PLC
• Dual inputs, up to eight 350 ohm load cells
• Excitation supply:
❍ Single channel: Up to four 350-ohm load cells
❍ Dual channel: Up to eight 350-ohm load cells
• Digital ilters
APPLICATIONS
• Silo, bin, vessel and hopper weighing
• Inventory measurement and process control
DESCRIPTION
The BLH Nobel-1756-WM module its in a single slot in
1756 ControlLogix chassis. It’s powered directly from
the I/O chassis backplane and needs no additional
connections besides to the load cells.
TYPICAL CONFIGURATIONS
S S
S
Set-up and calibration is done with the Rockwell®
RSLogix 5000®
Software and requires no external
coniguration utilities.
Arjay Automation | (800) 761-1749 | www.arjaynet.com
2. Technical contact: blhnobel.usa@vpgsensors.com,
Europe: blhnobel.eur@vpgsensors.com, Asia: blhnobel.asia@vpgsensors.com
www.blhnobel.com
2
BLH Nobel-1756-WM
Document No.: 41506
Revision: 21-Feb-2018
Dual-Channel Plug-In Weighing Module for the Rockwell 1756 ControlLogix Chassis
SPECIFICATIONS
PARAMETER VALUE
PERFORMANCE
Full scale range Approx. ±5.8 mV/V
Linearity ±0.02% of 2 mV/V
Excitation voltage 4.3 VDC
Load current 50 mA (4 parallel 350 ohm LC)
ENVIRONMENTAL
Operating temperature 0°C to +60°C (+32°F to +140°F)
ENVIRONMENTAL
Backplane power consumption 24V @ 85 mA, 5V @ 40 mA
ENCLOSURE
Overall dimensions Single slot
Mounting 1756 ControlLogix®
Chassis
Input connector Screw connection plug
CONFIGURATION
Tools Rockwell®
RSLogix5000®
(PLC Development Software)
Calibration Datasheet and known weight
50/60 Hz filter Yes, selectable
Low pass filter Yes, averaging; selectable number of samples
Motion stabilization filer Yes, selectable sensitivity
Zero band Yes, selectable range (zero track type function)
Warranty One year against defects in workmanship
BLH Nobel is continually seeking to improve product quality and performance. Speciications may change accordingly.
Allen-Bradley, ControlLogix, Rockwell, and RSLogix 5000 are registered trademarks of Rockwell Automation.
Arjay Automation | (800) 761-1749 | www.arjaynet.com
3. Vishay Precision Group, Inc.
www.vpgsensors.com
1
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Document No.: 63999
Revision: 15-Jul-2014
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