Autopol; Remote Communication Parameters - Dawn CONTROL-1500A Manual

CONTROL-1500A Single Axis Antenna Controller
accessible will be the AutoPol Enable, Remote Enable, and Expert On. When the Expert
Access flag is set, access to the other CONFIG mode items can be further restricted by the
value of a controlling Config mode item.
An example will clarify the concept of a controlling CONFIG mode item. Three CONFIG mode
items associated with remote access to the controller are Remote Enable, Comm Address,
and Baud (100s). The Remote Enable CONFIG item is the controlling item for the
Communications Port Address and Communications Port Baud Rate items. If the Remote
Enable CONFIG mode item has a value of 0 (disabled) then the other two items will not appear
in the list of CONFIG mode items. In the descriptions which follow the controlling items and
the items that are controlled by other items will be clearly delineated.
4.9.1

AutoPol

The AutoPol system allows the controller's polarization control function to be slaved to the level
of a digital input derived from a satellite receiver. Please refer to sections 2.6 and 3.8 for more
information on the AutoPol system.
The AutoPol system is disabled and enabled via the AutoPol Enable CONFIG mode item.
POS
AUTOPOL ENABLE:0
0-NO, 1-yes
The AutoPol Vlevel CONFIG mode item specifies the polarity of the AutoPol digital input
signal. A value of zero implies that a low on the AutoPol digital input specifies vertical
polarization and a value of one implies that a high level on the AutoPol input selects vertical
polarization. Access to this item is only allowed when the Expert Access Flag is set.
POS
AUTOPOL LEVEL:1
0-lo, 1-HI
4.9.2

Remote Communication Parameters

The following items are used to enable and configure the remote RS-422 communications
capability. Access to these parameters is allowed only when the Expert Access flag is set.
The Remote Enable item is the controlling item for the Comm Address and Baud (100s) items.
The Remote Enable item is used to enable access to REMOTE mode. If REMOTE mode is
enabled, the controller will respond to serial commands whose address matches the
controller's address. If a valid command is received via the communications port, the control
will transfer to REMOTE mode. See Appendices D and E for additional information on the
controller's remote control characteristics.
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph (248) 391-9200 • Fax (248) 391-9207 • sales@DAWNco.com
POL SS
CFG
MODE
POL SS
CFG
MODE
Chapter 4 Modes Function Description
46