159
ifm
Programming Manual BasicController relay CR0431 v03.03.00
05 / 2018
ifm function elements
ifm function elements for the device CR0431
J1939_DM1TX
14993
= J1939 Diagnostic Message 1 TX
Unit type = function block (FB)
Unit is contained in the library
ifm_J1939_NT_Vxxyyzz.LIB
Symbol in CODESYS:
>
Description
7747
With J1939_TX_DM1 (DM =
D
iagnostic
M
essage) the controller can only transmit an active error
message to the CAN stack.
>
This message is stored in the hardware configuration.
>
The message is marked "active" and transmitted once per second as DM1.
>
If the error has already occurred, the event counter is incremented.
The event counter is managed by the CAN stack.
>
A disjunction of all bits of the trouble codes is executed. As soon as a bit is set in one of the
trouble codes, it is equally set in the lamp state.
Upon arrival of a request at DM2, the CAN stack can read the according information from the
hardware configuration and transmit it.
>
When a DM3 message arrives, all inactive errors are deleted in the error memory in the hardware
configuration.
Summary of Contents for BasicController CR0431
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