Chapter 8: DeviceNet 8.2 Limitations of the DeviceNet Scanner The DeviceNet Scanner that is incorporated into the SmartController EX motion controller hard- ware and the eV+ operating system currently supports only a subset of full DeviceNet func- tionality. The following is a summary of this DeviceNet implementation: l Implemented the Master-Slave operation. This is a complete subset of Peer-to-Peer oper- ation. l Implemented the Unconnected Message Manager (UCMM) in its DeviceNet Scanner to establish connections. UCMM is used to establish I/O Connections . l The DeviceNet Scanner can be a Client or a Server on the network.
l The DeviceNet Scanner currently does not support Cyclic or Change-of-State connections. l Only I/O Messaging is supported. I/O messages contain only data. l Currently, only the Message Group 2 of the Predefined Master/Slave Connection Set is sup- ported . l Message Group 2 I/O connections support only the I/O Poll Command/Response Message of the possible message types. 8.3 DeviceNet Port on the Controller The DeviceNet port on the SmartController EX Motion Controller has the following con- figuration: Micro-style 12 mm thread DIN connector (female). See the following table for pin assignments. Table 8-1.
DeviceNet Signal-to-Pin Locations See the figure DeviceNet Connector Pinouts on page 90 for a drawing of the connectors. Connecting DeviceNet Hardware to the Controller To connect DeviceNet components to the controller, connect a drop line to the female Micro- style 12 mm-thread DIN connector on the front of the controller. Then you must configure the DeviceNet Scanner correctly using the ACE Configuration Tools. SmartController EX User’s Guide, 11069-000 Rev. F Page 82 of 92 Pin Number Signal Name 1 Drain 2 V+ 3 V- 4 CAN H _ 5 CAN L _