GE Industrial Solutions AF-300 P11_G11 Ethernet Interface - Manual (Page 27)

EtherNet/IP 21
Explicit Messaging
Many of the drive’s parameters are mapped as Communication No:s, see “Appendix B - Drive Parameters”,
for EtherNet/IP the CommunicationNo:s are accessed via the Fuji Vendor Specific Object (Class 0x64).
Various configuration softwares or, for example, ControlLogix from Rockwell Automation can perform
EtherNet/IP explicit messaging. The examples in the chapter demonstrate how explicit read/writes can be
performed with the ControlLogix PLC. The PLC is configured in RSLogix 5000.
Get Attribute Single Example
This example shows how to get the “DC link circuit voltage” (M21) by explicit messaging.
1. In Controller tags, create a tag of MESSAGE type for the read instruction and create a tag of INT
type for storing the value.
2. Add the message instruction (MSG) to a rung and use the created tag as value for the “Message
Control” field.