
Publication DNET-UM004A-EN-P - March 2004
8-2 Interlock and Share Inputs
Choose a Master Controller
To interlock, choose a controller to serve as the master. The other
controller/controllers become a slave/slaves to the master. This is
simply defines the relationship between the controllers. The scanners
of each controller still scans and controls its own devices, if desired.
Determine How Much Data to Exchange
Before you configure the scanners for the interlock, determine how
much data you want to exchange between the controllers.
DeviceNet network
scannerController
A
scannerController
B
master slave
DeviceNet network
scannerController
A
scannerController
B
master slave
scanner input tag
scanner output tag
…I.Data[0] DINT
…O.Data[0] DINT
scanner input tag
scanner output tag
…I.Data[0] DINT
…O.Data[0] DINT
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