High Country Tek DVC80 - Manual (Page 102)

P/N: 021-00154, Rev. A.6 - updated for V4.7 Tools Page | 102
Maximum Time
The meaning of this field is dependent on the Control type. If the Control type is Send Data then this field means
how often the message is transmitted out from the DVC controller and DVC80. If the Control type is Receive
Data then this field means how often the message is expected to be received. Error indications will occur if
these times are exceeded.
Range: 10ms to 10seconds.
PDU Format (PF)
The PF field identifies one of two PDU formats able to be transmitted (PDU1 or PDU2). PDU Formats are
described in the SAE J1939/21, Section 3.3.
Range: 0 to 255
PDU Specific (PS)
The meaning of this field is dependent on the value of PF. If the PF value is between 0 and 239 (PDU1), this PS
field contains a destination address. If the PF field is between 240 and 255 (PDU2), the PS field contains a
Group
Extension (GE) to the PDU Format. The Group Extension provides a larger set of values to identify messages,
which can be broadcast to all ECUs on the network.
Range: 0 to 255
Priority
The Priority field assigns how important the message is to be processed. The highest priority is 0 and lowest
priority is 7. (This field is not needed when “Control” type is “Receive Data”)
Range: 0 to 7
Data Length
Data Length is the length of the message in bytes.
Range: 1 to 8
Byte # Name
Byte Name is the suffix of the name to access a byte in Bubble Logic. For instance
eec1.status_eec1 would be used to access byte 1 of the defined message EEC1
shown here.
Range: 16 Alpha/Numeric characters only with no spaces.
DVC80 Program Variables
Name.NORSP
True when a message has not been received in the
“Maximum Time” period
Name.Byte#Name
Set/Get the current value of that byte of the J1939
CAN message
Range: 0 to 255
Name.disable
True will prevent messages from being sent. This variable
defaults to false.
Name.srcaddr
Message that are sent from the DVC7/10 will have this number as the J1939
source address. If this value is 0 (the default) the source address will be the
DVC80 macid value.
Message Example
Message Name:
EEC1
Control Receive Data from ECM
Maximum Time: 50ms Engine Speed Dependent
PDU Format (PF)
240
PDU Specific (PS) 4 PGN = (PF*256)+PS