Managing Network Devices with Cognex Connect Eric Hershberger Senior Applications Engineer

Managing Network Devices withCognex Connect

Eric Hershberger Senior Applications Engineer

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Vision Area Networks

All Cognex products are designed to take advantage of full Ethernet technology

Share images, results, and data in real-time

Used with PLCs, robots, PCs, and an HMI or SCADA system


Communicating with a PLC

TCP/IP, FTP, Telnet (Standard) EtherNet/IP, PROFINET

(Industrial) Modbus/TCP, DeviceNet,

Profibus (Fieldbus)


Robot Communications

Communication is usually done via serial or Ethernet communication

Robot drivers and sample code - facilitate integration

World-class vision tools - for part identification, inspection and measurement applications

Rockwell – Allen Bradley PLC

Eric Hershberger Senior Applications Engineer


Communications Options

Ethernet/IP (EIP) Based on Ethernet TCP/IP Uses the TCP/IP address of camera Requires EIP Communications Card or Processor

DeviceNet Legacy Communications but still in use Additional Hardware needed Additional Custom Programming


Rockwell PLC Terminology

Electronic Data Sheets (EDS) Defines network modules for RSLinx

Add-On Profiles (AOP) RSLogix 5000 only Defines communications and tag settings for implicit

messaging to network modules


Explicit & Implicit Messaging

Explicit Unscheduled Uses a request/response communications procedure EX: Job change, Native Mode Commands for In-Sight

Implicit Scheduled, time critical Uses a requested packet interval (RPI) to specify when data

update EX: Control, Status, Data Transmission

Note: Not all models support Explicit and Implicit messaging. Check with Allen Bradley to verify


Software Versions - Rockwell Allen Bradley

RSLogix 5000 Used with CompactLogix and ControlLogix Version 15 and higher AOP included with version 20+

In-Sight Explorer Version 3.4 and higher


Module Definition

Without AOP

Without AOP


Data LayoutWith AOP

With AOP


Samples and Examples

C:\Users\Public\Documents\Cognex\In-Sight\In-Sight Sample Projects

Included with In-Sight Explorer installation Integer Data example with job files/images Float data example with job files/images 2D matrix code example with job files/images


Where to go for help!


AOP Integration Demonstration


Questions?