Detroit Diesel DDEC VI Application And Installation page 393

Variable Length Parameters
PID 192 - Multi-Section Parameter
update rate: Used to transmit messages that are greater than 21 bytes in length.
format:
PID Data
192 n a b c/d c c c c c
n - Byte count of data that follows this character. This excludes
characters MID, PID 192 and n but it includes a, b, c, or d type
character.
a = PID specifying the parameter that has been sectioned.
b = The last section number (total number of sections minus ONE)
and the current section number. The upper nibble contains the
current section number (1 to 15). The lower nibble contains
the current section number and is limited to the range 0 to 15.
Section numbers are assigned in ascending order.
c = Data portion of the sectioned parameter. May be 1 to 14
characters in the first packet. May be 1 to 15 characters in the
middle and ending packets.
d = Byte count of the total data portion. This character is sent only
in the first packet. The values are limited to 239 or less but
must be greater than 17.
comment: PID 192 is used to section any CPC message that exceeds 21 bytes
while the engine is running, in particular PID 194, PID 196, and PID
243. If the engine is stopped, CPC may transmit messages up to 40
bytes in length.
All information subject to change without notice. (Rev. 01/07)
7SA827 0701 Copyright © 2007 DETROIT DIESEL CORPORATION
DDEC VI ELECTRONIC CONTROLS APPLICATION AND INSTALLATION
6-17