IFM CR0452 - J1939_Dm1 Rx

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ifm Programming Manual BasicDisplay CR0452 v03.02 05 / 2018
ifm function elements ifm function elements for the device CR0452
J1939_DM1RX
14977
= J1939 Diagnostic Message 1 RX
Unit type = function block (FB)
Unit is contained in the library ifm_J1939_NT_Vxxyyzz.LIB
Symbol in CODESYS:
>
Description
7761
J1939_RX_DM1 receives diagnostic messages DM1 or DM2 from other ECUs.
>
Parameters of the inputs
14979
Parameter
Data type
Description
ENABLE
BOOL := FALSE
TRUE: execute this function element
FALSE: unit is not executed
> Function block inputs are not active
> Function block outputs are not specified
CHANNEL
BYTE
CAN interface (1...n) depending on the device
DA
BYTE
DA = Destination Address of the ECU from where the DTCs are to be
retrieved.
DA = 254: read DTCs from the device itself
ACTIVE
BOOL
TRUE: Read active DTCs (DM1)
FALSE: Read previously active DTCs (DM2)