1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
    1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
    1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
    1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
    1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
    1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
    1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
    1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
    1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
    1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
    1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
    1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool
1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool

1788-CNCHKR | Allen-Bradley ControlNet NetChecker Handheld Diagnostic Tool

Part #: 1788-CNCHKR Manufactured by: Allen-Bradley
Regular price
$4,299.00
Sale price
$4,299.00
Regular price
2 in Stock
Condition: New – Open box
Shipping calculated at checkout.
Product Overview
The Allen-Bradley 1788-CNCHKR ControlNet NetChecker has a 8 bi-color status indicators Display and a Piezo Buzzer. The 178...  Read more
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warranty
IQElectro 2-Year Warranty
Warranty for Product #: 1788-CNCHKR
IQElectro offers a free 2-year warranty on all products. You can trust that every purchase is a reliable investment in the future of your company. Warranty Terms
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IQElectro is Not an authorized distributor for Allen-Bradley
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 1788-CNCHKR

Description / Specifications

Description

The Allen-Bradley 1788-CNCHKR is a handheld ControlNet NetChecker designed for field diagnostics and signal-quality evaluation on active ControlNet networks. The 1788-CNCHKR provides visual and audible indicators to detect wiring issues, distortion, and network irregularities without interrupting communication. Powered by AA batteries or an external DC adapter, this compact tool supports commissioning, troubleshooting, and maintenance tasks in industrial automation systems.

 

 

Technical Specifications

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Diagnostic Tool
Part Number 1788-CNCHKR
Subcategory Diagnostic Tool
Product Type ControlNet NetChecker
Power Options Two AA batteries or external 5 VDC @ 0.25 A
Battery Life Approx. 6 hours
Indicators 8 bi-color LEDs (diagnostic/bar-graph + TRAFFIC indicator)
Buzzer Piezo buzzer for audio alarms
Node Selection Two-digit thumbwheel (00–99)
Slide Switch 1 3-position: OFF / ON / momentary ON
Slide Switch 3 4-position: L, M, H diagnostic thresholds, or Bargraph mode
Oscilloscope Connector 3-pin Phoenix connector
Input/Output Ports BNC connector for ControlNet connection
Dimensions (H × W × D) 152 × 83 × 33.5 mm
Weight ~0.25 kg
Operating Temperature 0…50 °C
Storage Temperature –40…85 °C
Relative Humidity 5–95% non-condensing
Enclosure Type Handheld, open-style device
Typical Accessories BNC T-connector, BNC cable, oscilloscope plug

 

 

Information About 1788-CNCHKR

The 1788-CNCHKR is part of Rockwell Automation’s ControlNet diagnostic tools and is used to assess physical layer integrity on operational ControlNet coaxial networks. The device measures critical signal characteristics such as noise levels, reflections, Manchester encoding quality, peak-to-peak amplitude, and message timing. It includes a node finder feature controlled by two thumbwheel switches, enabling users to locate specific nodes on the network. Equipped with dual-function bi-color LEDs, an oscilloscope output, slide switches, and an onboard piezo buzzer, the 1788-CNCHKR provides both visual bar-graph feedback and audible fault alerts to streamline maintenance and installation work.

Key Features

  • Handheld ControlNet Diagnostic Tool: Evaluates cable integrity and signal quality on live ControlNet networks.
  • Bi-Color LED Indicators: Eight red/green LEDs provide bar-graph or diagnostic feedback for signal conditions.
  • Node Finder Function: Locates a specific ControlNet node using thumbwheel-selected addressing.
  • Oscilloscope Output: Supplies isolated signal and trigger output via a 3-pin connector for advanced analysis.
  • Multiple Power Options: Operates on two AA batteries or an external 5 VDC power supply.
  • Audible Fault Detection: Piezo buzzer alerts users to detected signal anomalies or network issues.
  • Compact Industrial Design: Small, lightweight device suitable for field commissioning and troubleshooting.
  • Selectable Diagnostic Modes: Slide switches let users choose between low, medium, high thresholds or bar-graph mode.

The 1788-CNCHKR delivers the reliability and precision required for professional ControlNet commissioning and troubleshooting in industrial automation networks.

Frequently Asked Questions about 1788-CNCHKR
Question: What is the 1788-CNCHKR?
Date Update:06/06/2025
Answer:

The 1788-CNCHKR is a ControlNet Network Checker from Allen-Bradley (Rockwell Automation). It’s used for testing, analyzing, and verifying the health and performance of a ControlNet network.

Question: What does the 1788-CNCHKR do?
Date Update:06/06/2025
Answer:

The ControlNet Checker can:

  • Diagnose network performance issues.
  • Analyze cable quality and signal strength.
  • Identify errors and noise on the ControlNet network.
  • Provide real-time monitoring of ControlNet segments.
Question: Is there any wiring involved with the 1788-CNCHKR?
Date Update:06/06/2025
Answer:

The only wiring required is:

  • BNC connection to the ControlNet network tap point.
  • Power source connection, typically using a power supply that meets the device’s voltage/current specifications.
Question: Is there any programming needed for the 1788-CNCHKR?
Date Update:06/06/2025
Answer:

No, the 1788-CNCHKR is a diagnostic tool and does not require any programming or configuration. It automatically performs tests and provides real-time data.

Question: Does the 1788-CNCHKR require calibration or maintenance?
Date Update:06/06/2025
Answer:

Typically, it is a calibration-free device, but you should:

  • Periodically inspect the BNC connectors and cables.
  • Keep the unit clean and in good environmental conditions.
IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description

The Allen-Bradley 1788-CNCHKR is a handheld ControlNet NetChecker designed for field diagnostics and signal-quality evaluation on active ControlNet networks. The 1788-CNCHKR provides visual and audible indicators to detect wiring issues, distortion, and network irregularities without interrupting communication. Powered by AA batteries or an external DC adapter, this compact tool supports commissioning, troubleshooting, and maintenance tasks in industrial automation systems.

 

 

Technical Specifications

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Diagnostic Tool
Part Number 1788-CNCHKR
Subcategory Diagnostic Tool
Product Type ControlNet NetChecker
Power Options Two AA batteries or external 5 VDC @ 0.25 A
Battery Life Approx. 6 hours
Indicators 8 bi-color LEDs (diagnostic/bar-graph + TRAFFIC indicator)
Buzzer Piezo buzzer for audio alarms
Node Selection Two-digit thumbwheel (00–99)
Slide Switch 1 3-position: OFF / ON / momentary ON
Slide Switch 3 4-position: L, M, H diagnostic thresholds, or Bargraph mode
Oscilloscope Connector 3-pin Phoenix connector
Input/Output Ports BNC connector for ControlNet connection
Dimensions (H × W × D) 152 × 83 × 33.5 mm
Weight ~0.25 kg
Operating Temperature 0…50 °C
Storage Temperature –40…85 °C
Relative Humidity 5–95% non-condensing
Enclosure Type Handheld, open-style device
Typical Accessories BNC T-connector, BNC cable, oscilloscope plug

 

 

Information About 1788-CNCHKR

The 1788-CNCHKR is part of Rockwell Automation’s ControlNet diagnostic tools and is used to assess physical layer integrity on operational ControlNet coaxial networks. The device measures critical signal characteristics such as noise levels, reflections, Manchester encoding quality, peak-to-peak amplitude, and message timing. It includes a node finder feature controlled by two thumbwheel switches, enabling users to locate specific nodes on the network. Equipped with dual-function bi-color LEDs, an oscilloscope output, slide switches, and an onboard piezo buzzer, the 1788-CNCHKR provides both visual bar-graph feedback and audible fault alerts to streamline maintenance and installation work.

Key Features

  • Handheld ControlNet Diagnostic Tool: Evaluates cable integrity and signal quality on live ControlNet networks.
  • Bi-Color LED Indicators: Eight red/green LEDs provide bar-graph or diagnostic feedback for signal conditions.
  • Node Finder Function: Locates a specific ControlNet node using thumbwheel-selected addressing.
  • Oscilloscope Output: Supplies isolated signal and trigger output via a 3-pin connector for advanced analysis.
  • Multiple Power Options: Operates on two AA batteries or an external 5 VDC power supply.
  • Audible Fault Detection: Piezo buzzer alerts users to detected signal anomalies or network issues.
  • Compact Industrial Design: Small, lightweight device suitable for field commissioning and troubleshooting.
  • Selectable Diagnostic Modes: Slide switches let users choose between low, medium, high thresholds or bar-graph mode.

The 1788-CNCHKR delivers the reliability and precision required for professional ControlNet commissioning and troubleshooting in industrial automation networks.

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