Rockwell Automation 1747-SDN SLC 500 DeviceNet Scanner Module User Manual User Manual
Page 114
Publication 1747-UM655B-EN-P - June 2007
114 AutoScan
When a scanner is transitioned from Run mode to Idle mode while
AutoScan is enabled, it only scans the network for nodes that are not
already in the scanlist. However, while in Idle mode, an AutoScan
Disable mode to Enable mode transition will cause the scanner to
erase the existing scanlist and scan for all nodes on the network.
The AutoScan feature enables Auto-address Recovery (AAR) for each
of the configured slave devices.
The AutoScan feature checks for the Quick Connect setting in each
slave device and enables Quick Connect in the scanner if it is enabled
in the slave devices.
Additionally, AutoScan changes the default setting of InterScan Delay
(ISD) from 10 ms to 4 ms. The reason for this is to improve network
performance. The smaller value of ISD limits the access that software
has for communication on the network, but when using AutoScan
software communication should not be a concern.
- 20P PowerFlex DC Drive - Frame D Bimetal Thermostat (10 pages)
- 1336S_F_T_E_R F Frame Snubber Resistor Repl. (6 pages)
- 22-COMM PowerFlex 4-Class DSI (Drive Serial Interface) Network Communication Adapter (4 pages)
- 8-545 Plug In Solid State Relay (2 pages)
- 20-HIM-B1 PowerFlex 7-Class HIM Bezel (DPI) (4 pages)
- 100 Contactors with DC Coil (1 page)
- 100 Contactors with DC Coil (2 pages)
- 20P PowerFlex DC Drive - Frame D Switching Power Supply Circuit Board (6 pages)
- 140G-MTFx_MTHx_MTIx_MTKx Trip Unit Installation-140G-M (6 pages)
- 45BRD Analog Laser Sensor (4 pages)
- 20D Multi-Device Interface Option Board for PowerFlex 700S Drives (20 pages)
- 56RF RFID 18 mm Cylindrical Transceiver (2 pages)
- 42KC Miniature Rectangular: 5V DC Version (2 pages)
- 20P PowerFlex DC Drive - Frame A Switching Power Supply Circuit Board (16 pages)
- 21P-MISC-A-TP-2 Transition Tube Kit #C19-6/7 For PowerFlex 755 w/OEM Liquid Cooling Fr 6/7 Drive (2 pages)
- 42BT Background Suppression Sensor (3 pages)
- 42CB High Speed 18mm Cylindrical (4 pages)
- 140EX-JE2_JE3 Molded Case Circuit Breaker (4 pages)
- 140G-K-EAM1A Early Make Aux Contact for Rotary Handle Oper Mech-140G-K (1 page)
- 140G-K-EAM1A Early Make Aux Contact for Rotary Handle Oper Mech-140G-K (3 pages)
- 20-HIM-A6 PowerFlex (Human Interface Module) (74 pages)
- 42CF General Purpose 12mm Cylindrical (4 pages)
- 20D PowerFlex 700S Phase II Drive Frames 1...6 (80 pages)
- 140EX-HE1_HE2 Molded Case Circuit Breaker (6 pages)
- 140EX-HE1_HE2 Molded Case Circuit Breaker (4 pages)
- 20B PowerFlex 700 Custom Firmware - Pump Off (12 pages)
- 20-WIM-N4S DPI Wireless Interface Module (92 pages)
- 140U H-Frame Circuit Breaker Fixed and Adjustable Thermal Trip (7 pages)
- 140U H-Frame Circuit Breaker Fixed and Adjustable Thermal Trip (2 pages)
- 60-2619, 42JS Swivel/Tilt Mounting Bracket (1 page)
- 22A PowerFlex 4/40/400 Flange Mount (4 pages)
- 45MLA Controller Installation Instructions (16 pages)
- 20P PowerFlex DC Drive - Cooling Fan for Frame A Drives Above 73A at 230V 460V AC (6 pages)
- 42JS Series 7000 to 42JS VisiSight Replacement Kit (2 pages)
- 22A PowerFlex 4-Class HIM Bezel (DSI) (4 pages)
- 42CS Stainless Steel Photoelectric Sensors (4 pages)
- 20L-LL PowerFlex 700L Liquid-to-Liquid Heat Exchanger (40 pages)
- 20P PowerFlex DC Drive - Frame B SCR Modules (20 pages)
- 22B PowerFlex 40 Quick Start FRN 5.xx - 6.xx (161 pages)
- 22B PowerFlex 40 Quick Start FRN 5.xx - 6.xx (22 pages)
- 22F PowerFlex 4M Input RFI Filters (2 pages)
- 45LFM Capacitive Label Sensor (4 pages)
- 140G-Rx Installation Instruction-140G-R (2 pages)
- 140G-Rx Installation Instruction-140G-R (29 pages)
- 22C PowerFlex 400 AC Drive Quick Start - FRN 1-4.xx (28 pages)