Jeppesen Nobeltec SSHS, Owner'S Manual

Page: 34 / 48

Solid State Heading Sensor (SSHS) Owner’s Manual
28
$PMAREXE,SSHS,,5E.11,,,<CR><LF>
This command causes the SSHS to zero the rate of turn indication and record the
compensation value used, along with the current operating temperature of the compass. The
boat must remain at rest for a period of one minute after this command is issued.
$PMAREXE,SSHS,,5E.12,,,<CR><LF>
This command causes the SSHS to cancel any rate of turn zeroing operations currently in
progress.
PMARSETPX – Manufacturer’s Proprietary Set Period Sentence
The SSHS can be programmed to enable or disable the periodic transmission of the HDG,
HDM, HDT, ROT, and PMAROUT sentences. In addition, the periodic transmission rate for
these sentences and the Variation Lifetime (see
RMC on Page 26
and
VTG on Page 27
) can
be programmed using this sentence.
$PMARSETPX,SSHS,,A,B*hh<CR><LF>
Field A:
Identifier code, identifies the sentence or parameter to be programmed (see
Table 4
)
B:
Integer where “0” disables sentence and positive numbers are multipliers of 1ms (i.e.,
programmed integer of 200 would mean a 200ms transmission interval)
Table 4—PMARSETPX Transmission Guide
Some example sentences are shown below:
1. To disable transmission of the HDG sentence:
• $PMARSETPX,SSHS,,00,0
2. To enable transmission of the HDG sentence at intervals of 100 ms:
• $PMARSETPX,SSHS,,00,100
3. To disable transmission of the HDM sentence:
• $PMARSETPX,SSHS,,01,0
Identifier Code Sentence Default Rate
00 HDG 100 (100ms)
01 HDM 0 or Disabled
02 HDT 0 or Disabled
03 ROT 200 or 200ms
04 PMAROUT 1099 or 1sec
0A Variation lifetime 5000 or 5sec