G7 ASD Operation Manual
33
Command and Frequency Control Selections
The user may select only one Command source and only one source for Frequency control. The
default settings for Command and Frequency control are Use Control Terminal Strip and Use RR,
respectively.
The G7 ASD has a command register for each item listed as a Command or Frequency source. The
registers store the Override setting for each control source. The registers are continuously scanned to
determine if any of the listed items are in the Override mode.
For each scan cycle, the command registers of the control sources are scanned for the Override setting
in the order that they are listed in
Table 5
. The first item of the Command section and the first item of
the Frequency section detected as being in the Override mode will be used for Command and
Frequency control, respectively. If no items are detected as being in the Override mode, the settings of
F003
and
F004
will be used for Command and Frequency control, respectively.
Any or all of the Command and Frequency control input sources may be placed in the Override
mode.
Placing the G7 ASD in the Local mode (Local/Remote LED on) via the EOI places the RS232/RS485
or the Common Serial (TTL) control selections in the Override mode for Command and Frequency
input (see the section titled
Override Operation
below for the proper setting). The Local/Remote
control Override feature for Command and Frequency (or either) may be enabled/disabled at Program
⇒
ΕΟΙ
Option Setups
⇒
Local-Remote Key (enabled with check in box).
Communications may be used to place the remaining Command and eligible Frequency control input
sources in the Override mode. Once placed in the Override mode this setting is valid until it is
cancelled, the power supply is turned off, or the unit is reset.
