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8.10.2 Request Message Definition (Table 114).
Table 114: DynamicallyDefineMessage Request Message
Data Byte
Parameter Name
Cvt Hex Value Mnemonic
#1
DynamicallyDefineMessage Request Service Id
M
2C
SIDRQ
#2
DPIDIdentifier = [
DPID# ]
M FE thru 90
or
7F thru 01
MN_
DPIDID
#3
#4
:
#n-1
#n
PIDData = [
PIDHighByte_1
PIDLowByte_1
:
PIDHighByte_m
PIDLowByte_m ]
M
M
:
U
U
xx
xx
:
xx
xx
PIDDTA_
PIDH1
PIDL1
:
PIDHn
PIDLn
8.10.2.1 Request Message Sub-function Parameter $Level Definition. 
Because this service is defined as a
single operation, there are no sub-parameters required or valid for the request message.

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8.10.2.2 Request Message Data Parameter Definition. 
Table 115 specifies the data parameter definitions for
this service.
Table 115: Request Data Parameter Definition
Definition
DPIDIdentifier
The value of the Data Packet to be defined. This is also the value used in the mode $AA service request
message to read the dynamic data values of the PIDs assigned to be part of a specific Data Packet.
PIDData[]
These are the PID numbers to be assigned as part of the specific Data Packet.