Detroit Diesel DDEC VI Application And Installation page 402

COMMUNICATION PROTOCOLS
PID 250- Total Fuel Used
update rate: On request only
format:
PID Data
250 n a a a a
n =
a =
PID 251- Clock
update rate: On request only
format:
PID Data
251 n a b c
n = number of bytes: 3
a = Seconds 0.25 sec/Bit, range 0 to 59.75 seconds
b = Minutes 1.0 min/Bit, range 0 to 59 minutes
c = Hours 1.00 hour/Bit, range 0 to 23 hours
comment: Transmitted if clock data is considered valid. The time is broadcast in
Greenwich Mean Time.
PID 252- Date
update rate: On request only
format:
PID Data
252 n a b c
n = number of bytes: 3
a = Day 0.25 day/Bit, range 1 to 31.75 days
b = Month 1.0 month/Bit, range 1 to 12 months
c = Year - 1985 1.00 year/Bit, range 0 to 99
comment: Day of the month is scaled such that 0 is a null value, values 1, 2, 3, and 4
are the first day of the month, 5, 6, 7, 8,are the second day of the month,
etc. Transmitted if clock data is considered valid.
6-26
number of bytes: 4
total fuel used 0.125 gal/Bit (Uns/LI)
7SA827 0701 Copyright © 2007 DETROIT DIESEL CORPORATION
All information subject to change without notice. (Rev. 01/07)