Jetter JVM-407B-HMI, Руководство пользователя

Страница: 160 / 300

160 Jetter AG
7 SAE J1939 STX API
STX function SAEJ1939GetDM1()
Calling up the function SAEJ1939GetDM1 () requests the current diagnostics
error codes (also see SAE J1939-73 No. 5.7.1). The corresponding PGN
number is 65226. This function must constantly be recalled in cycles.
Function SAEJ1939GetDM1 (
CANNo:Int,
bySA:Byte,
ref stJ1939DM1stat:TJ1939DM1STAT
ref stJ1939DM1msg:TJ1939DM1MSG
) :Int;
The
SAEJ1939GetDM1 ()
function comprises the following parameters:
Parameter Description Value
CANNo CAN channel number 1 ... CANMAX
bySA Source Address of message
sender
0 ... 253
The own SA cannot be
used
stJ1939DM1stat lStatus
lMsgCnt
lBuffer
Lamp Status
Number of received
messages
Size of variable
stJ1939DM1msg
stJ1939DM1msg lSPN
byOC
byFMI Error code
Error counter
Error type
This function transfers the following return values to the higher-level program.
Return value
0 OK
-1 Error when checking parameters
This parameter specifies the number of the SAEJ1939 interface. CANNo = 1
is assigned to the first interface. The number of SAEJ1939 interfaces depends
on the device. For information on the maximum number of SAEJ1939
interfaces (CANMAX) refer to the chapters Technical Specifications and Quick
Reference in the corresponding manual.
Introduction
Function declaration
Function parameters
Return value
Parameter CANNo