JRC JFE-400, Instruction Manual

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10.Appendix
10-14
S = Simulator
N = Data not valid
2) The mode indicator field supplements the status field (field 6). The status field should be set
to V = invalid for all values of operating mode except for A = Autonomous and D = Differential.
The positioning system mode indicator and status fields should not be null fields.
5) ZDA – Time and date
$--ZDA, hhmmss.ss, xx, xx, xxxx, xx, xx*hh<CR><LF>
1 2 3 4 5 6
1: UTC
2: Day, 01 to 31 (UTC)
3: Month, 01 to 12 (UTC)
4: Year (UTC)
5: Local zone hours 1), 00 h to ±13 h
6: Local zone minutes 1), 00 to +59
Note;
1)Local time zone is the magnitude of hours plus the magnitude of minutes added,
with the sign of local zone hours, to local time to obtain UTC. Local zone is
generally negative for East longitudes with local exceptions near the international
date line.
Example: At Chatham Is. (New Zealand) at 1230 (noon) local time on June 10, 1995:
$GPZDA,234500,09,06,1995,-12,45*6C<CR><LF>
In the Cook Islands at 1500 local time on June 10, 1995:
$GPZDA,013000,11,06,1995,10,30*4A<CR><LF>
6) ACN – Alert command
$--ACN,hhmmss.ss,aaa,x.x,x.x,c,a*hh <CR><LF>
1 2 3 4 5 6
1: Time 1)
2: Manufacturer mnemonic code 2)
3: Alert Identifier 3)
4: Alert Instance, 1 to 999999 4)
5: Alert command, A, Q, O or S 5)
6: Sentence status flag 6)
Note;
1) Release time of the alert command. (e.g. for VDR purposes), optional can be a
null field. Sender is allowed to use all alternatives defined in Table 5 Field type
summary. Receiver is allowed to ignore content of this field. If receiver does not
ignore this field it should support all alternatives defined in Table 5 Field type
summary.
2) Used for proprietary alerts defined by the manufacturer. For standardized alerts
this should be a null field.
3) The alert identifier is unique within a single alert source. The alert identifier is a
variable length integer field of maximum 7-digit integer. It identifies the type of the
alert, e.g. a “lost target” alert. Standardized alerts use unique alert identifiers
described in equipment standards. Number range 10000-9999999 is reserved for
proprietary alerts and number ‘0’ is reserved for a command request to all alerts
(e.g. alert command Q requests transmission of all alert states). Alert Identifier
examples: “001”, “2456789”, “245”