SeaSpace TeraScan 1.5M, Operation And Maintenance Manual

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TeraScan 1.5m Polar Satellite Tracking Antenna O & M Manual
175
Section 10: Software
10.1 PROM C
HANGE
S
UMMARY
PCU PROM Model Change Description
1.631 6003L 1.5m Antenna: Initial Version. Limited Azimuth axis; 3 separate servo
amplifiers; Az pot; EPROM
2.6xx 6003AL 1.5m Antenna: Limited Azimuth axis; 3 servo amplifiers integrated into
PCU; Az encoder in azimuth motor; flash-programmable.
2.65 6003AL Corrected the following antenna positioning problem caused by ship motion
at sea: when elevation > 45 deg and ship rolls, dish moves to 0 deg elevation;
azimuth and cross-level positions are lost and antenna fails. This prom
allows the antenna to experience large ship rolls without loss of position.
2.67 6003AL Corrected motor gains for sea-going operation.
2.681 6003AL Corrected 3-axis motion (cross-level).
10.2 H
ARDWARE
C
OMMAND
S
ET
10.2.1 Command Summary — PCU
Use ac (Section 10.3, page 182) to manually send the following commands to the antenna PCU. Note: A
checksum is added to all messages sent with more than one character of data. The reply also includes a
checksum before the CR, LF.
CONTROL CODES: FUNCTION
Aaaaa
↵
Move azimuth to aaa.a degrees
Baaaa
↵
Set ship heading to aaa.a degrees
Eaaaa
↵
Move elevation to aaa.a degrees
Jaaaa
↵
Move azimuth to ship-relative position
Iaaaa
↵
Move cross-level to aaa.a degrees
ixxxx
↵
Differential tracking position update. See details for jxxxx, kxxxx
labcd
↵
Lumped i, j, k differential update
Onn
↵
Output data to EME equipment
U Force cable unwrap
^nnnn
↵
Send remote utility command nnnn to PCU
+ Cancel pending command