GE GEFanuc Automation Programmable Control Products TCP/IP Ethernet Communications for the Series 90t-70 PLC GFK-1004B - Manual (Page 111)

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4-23 GFK-1004B Chapter 4 Programming Communications Requests
(Word 10) Local PLC - Memory Starting Address: Starting address to store the Detailed
Channel Status words.
For more information on detailed channel status, see Section 4.
Note
For the Abort Channel, Retrieve Detailed Channel Status, and Assign
Channel Status Vector commands, no actual data is transmitted on the
network. Communication occurs between the client PLC CPU and the
local Ethernet Interface only. For these commands, known as “local”
commands, the actual function is performed locally and then the
COMMREQ Status word is sent immediately to the CPU.