managing network devices with cognex connect eric hershberger senior applications engineer
TRANSCRIPT
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Managing Network Devices withCognex Connect
Eric Hershberger Senior Applications Engineer
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2 | Confidential © 2012 Cognex Corporation
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3 | Confidential © 2012 Cognex Corporation
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
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4 | Confidential © 2012 Cognex Corporation
Communicating with a PLC
TCP/IP, FTP, Telnet (Standard) EtherNet/IP, PROFINET
(Industrial) Modbus/TCP, DeviceNet,
Profibus (Fieldbus)
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5 | Confidential © 2012 Cognex Corporation
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
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Rockwell – Allen Bradley PLC
Eric Hershberger Senior Applications Engineer
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7 | Confidential © 2012 Cognex Corporation
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
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8 | Confidential © 2012 Cognex Corporation
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
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9 | Confidential © 2012 Cognex Corporation
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
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10 | Confidential © 2012 Cognex Corporation
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
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11 | Confidential © 2012 Cognex Corporation
Module Definition
Without AOP
Without AOP
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12 | Confidential © 2012 Cognex Corporation
Data LayoutWith AOP
With AOP
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13 | Confidential © 2012 Cognex Corporation
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
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14 | Confidential © 2012 Cognex Corporation
Where to go for help!
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15 | Confidential © 2012 Cognex Corporation
AOP Integration Demonstration
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16 | Confidential © 2012 Cognex Corporation
Questions?