Allen-Bradley ControlLogix System 1756-L1 User Manual page 158

9-2 Communicate with 1771 I/O Over a ControlNet™ Network
Publication 1756-UM001E-EN-P - August 2002
If you have not already done so in a previous procedure, do the
following preliminary task:
• Add the Local 1756-CNB Module
To complete this procedure, do the following tasks:
• Add the 1771-ACN Module
• Communicate with Block Transfer Modules, using either of these
procedures:
– Read or Write Data To or From a Block Transfer Module
– Read or Write Data To or From Multiple Block Transfer
Modules
• Address I/O
• Schedule the ControlNet Network
• Validate Connections
• Stagger the Messages