MKS GMW-25, Руководство по эксплуатации

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System Installation
2-16 GMW-25
2.5.2 RS-422 Bussing
The introduction of RS-422 communication capabilities made possible
the concept of a
bussed system of generators being controlled from
one central control point. See Figure 2.5.2 below for the RS-422
System Diagram . Each generator is assigned an address, and control
of that address is achieved via the identity ( IDE ) command. The IDE
n<cr> command selects an address corresponding to the n value,
which is a hex number from 0 - FFH . When the command is asserted,
the corresponding device at that address is the only device on the bus,
and all other devices tri-state their transmitters. The
IDE address of a
generator is configurable within the CAL8 menu.
The link release [!!] <cr> is another command used in the realization
of the RS-422 Bus Architecture . This command will remove all devices
from the bus and put all devices into listen mode . This command is
only active until the next IDE n <cr> command, which will enable one
of the still listening devices to activate its transmitter.
RS-422 System Diagram
Figure 2.5.2