B&B Electronics HVD100A3 manual J1939 Header Worksheet

Page 30

J1939 Header Worksheet

This worksheet will aid in filling out/decoding the J1939 arbitration field.

Bit	J1939	CAN Frame		Hex
Number	Function	Entry		Value
29	Priority Bits				Byte 1
28
27
26	Reserved	0
25	Data Page	0
24	PDU-Format
23	(PGN Byte 2)
22
21					Byte 2
20
19
18
17
16	PDU Specific
15	(PGN Byte 3)
14
13					Byte 3
12
11
10
9
8	Source Address
7
6
5					Byte 4
4
3
2
1
		0
		0
		0

26	HDV100A3 Command & Response Manual-1306cr
B&B Electronics --	707 Dayton Rd.	-- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 --		FAX (815) 433-5104

Image 30

Contents HDV100A3 Command Response Protocol Page Table of Contents Do Not Transmit Any Messages to the network Intelligent Mode Verification IntroductionSOF Intelligent Mode Command ProtocolIntelligent Mode Message Structure Control Field StructureFormatting the Control Bytes Command Acknowledgement Detailed Description of General Function CodesRS-232 Baud Rate Setup HDV100A3 Command & Response Manual-1306cr Setting Baud 1, Baud Baud Rate Setup Table Baud Rate Example Byte Byte Function Number Value HexUB3 Byte Function Number Value Reply from HDV100A3Function code 20 = stop time stamping Master Reset Command Vendor InformationJ1708 Commands Receiving Data from the J1708 BusByte Byte Value Byte Function Number Hex Function code 10 hex stop receive Transmitting Data to the J1708 Bus Priority Byte Value Binary Value Hex ValueID bytes 9 = transmit OK J1708 Message Filter Set Filter Active Byte Function Number ValueSet Filter Off Byte Function Number Value Broadcast Message DataByte 4 Values Byte 6 Priority ValuesJ1939 Commands Start Receive on J1939 Bus Stop Receive on J1939 BusArbitration Field Y1, Y2, Y3, Y4 Message received from the HDV will be formatted as follows MSB-2 Transmit Data to J1939 BusMSB-1 Set MaskSet Filter 1 to HDV100A3 Command & Response Manual-1306cr J1939 Header Worksheet Error Codes DEC HEX