NEC NDA-24233 Network Card User Manual


 
Page 1-6 NDA-24233 Issue 2
Chapter 1 VisuaLink 128/384 Engineering Guide
(1) Command 1 is issued using the external control port rather than a personal computer.
(2) If a report is received from the remote unit before a transmission of Command 1, it transmits a report to
a PC and then transmits Command 1 to the remote unit. It transmits Response 1 to the PC after the
transmission. However, in parameter error and etc., it immediately transmits an error response. When an
error response is received, it analyzes the error contents and suspends the command issuance or reissues
a command.