Jetter JVM-407B-HMI, Руководство пользователя

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JVM-407B SAE J1939 STX API
STX function SAEJ1939AddRx()
Calling up the function SAEJ1939AddRx () prompts the JVM-407B to receive
a specific message. This message is sent from another bus node. The
address of this bus node is transferred to this function as a bySA parameter. If
the message is not sent, the value received last remains valid. Cyclical
reading continues until the function
SAEJ1939Init ()
is called up again.
Function SAEJ1939AddRx (
CANNo:Int,
IPGN:Long,
bySA:Byte,
BytePos:Int,
BitPos:Int,
DataType:Int,
DataLength:Int,
const ref VarAddr,
ref stJ1939:TJ1939Rx
EventTime: Int,
InhibitTime: Int,
) :Int;
The SAEJ1939AddRx () function comprises the following parameters:
Parameter Description Value
CANNo CAN channel number 1 ... CANMAX
IPGN PGN
Parameter Group Number 0 ... 0x3FFFF
bySA Source Address of message
sender
0 ... 253
BytePos Starting position of bytes of data
to be received
1 ... n
BitPos Starting position of bits of data to
be received
1 ... 8
DataType Data type of data to be received 1 ... 3, 10 ... 16
DataLength Volume of data for the global
variable VarAddr
VarAddr Global variable into which the
received value is entered
TJ1939Rx Control structure
EventTime Time lag between two telegrams
(> Inhibit Time)
Default value: 1,000 ms
InhibitTime Minimum time lag between two
telegrams received
(< EventTime)
Default value: 100 ms
This function transfers the following return values to the higher-level program.
Introduction
Function declaration
Function parameters
Return value