Appendix D - Serial Datagrams - GE Reason RT430 Technical Manual

APPENDIX D – SERIAL DATAGRAMS
RT430 can be configured to send datagrams through serial ports. The datagrams defined for the unit are
ACEB, NEMEA GPZDA, and Meinberg.
ACEB Datagrams
ACEB datagram comprises 13 bytes, sent once per minute in second 02. The datagram information is
described below.
TABLE C.1: ACEB Datagram Synchronism Information
Byte
1
2
3
4
5
6
7
8
9
10
11
12
13
NEMEA GPZDA Datagram
NEMEA ACEB datagram comprises 32 characters, sent once per second. The datagram information is
described below:
RT430-TM-EN-5
Description
Delimiter
Header
Status
Start of transmission
Day of week
Year
Month
Day of month
Hour
Minute
Second
End of transmission
Synchro byte
Possible values
0xFF
0x01
0x00 (locked) or 0x01 (not locked)
0x02
BCD 01 (Monday) ... BCD 07 (Sunday)
BCD 00 ... 99
BCD 01 ... 12
BCD 01 ... 31
BCD 00 ... 23
BCD 00 ... 59
BCD 02
0x03
0x16
RT430
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