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DIP Switch Setting
Trigger Input
Note
18
The ID Controller is provided with a trigger input that informs the Controller
when to start processing the DC. After receiving a command from the host
controller, the ID Controller waits until the conditions of this trigger input are
satisfied, and then starts communications with the DC.
Command
reception
Y
Trigger
input active
Y
Command processing
Response processing
Even if there are changes to the trigger input status while the ID Controller is
processing a command, processing is not suspended.
The condition of the trigger input can be specified to be L level (OFF) or H
level (ON) by using a DIP switch.
(a) (L level active)
(b) (H level active)
(c) (Leading edge active)
(d) (Trailing edge active)
When the auto command is used, the ID Controller waits for the DC approach
after the trigger input has become active. Consequently, the Controller does
not perform Read/Write processing even if a DC approaches before the trig-
ger input becomes active.
Auto command
reception
Trigger input wait*
*The ID Controller does not perform processing even when a DC approaches
in the trigger input wait state.
Note When the trigger input is not used, set the trigger condition to L level, and
open the TRG terminal (set pins 1 and 2 of DIP switch 2 to the OFF positions).
N
N
Command reception
Command processing starts
Trigger input wait
Trigger input
DC approaches Response
active
Waits until DC
approaches
Section 3-1
transmission
DC communica-
tions processing
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