Siemens SIMATIC PN/J1939 LINK Operating Instructions Manual page 22

Functions
4.2 PGN parameters
Parameter name
Priority
Transmit event
Transport proto-
col
Transmission
cycle in ms
Reception cycle
in ms
20
Module name Value range
PGN output n bytes Priority 0 ... 7
PGN output proxy
Cyclic
Change of
value
Remote re-
quest
Standard mes-
sage
Broadcast
Announce
Message
Connection
Mode Data
Transfer
10 to 5000
PGN input n bytes 0 to 5000
PGN input proxy
Description
Message priority
Highest priority: 0
PGN is sent with the time interval set in
the "Transmission cycle" parameter. In
"Cyclic" mode, standard messages and
the Broadcast Announce Message
(BAM) can be sent.
PGN is sent when the data value
changes. All transport protocols are
permitted.
PGN is sent when a request is made
from another device in the J1939 net-
work. The request has PGN 59904.
Standard messages and CMDT are
allowed.
PGN message with up to 8 bytes data
length
Fragmented transmission of data with
more than 8 bytes without flow control.
Fragmented transmission of data with
more than 8 bytes with flow control.
Transmission cycle is only valid if "cy-
clic" is configured as send event.
If a PGN is not received in time, a diag-
nostics alarm is sent to the S7 controller.
The value 0 means that the functionality
is disabled.
SIMATIC PN/J1939 LINK
Operating Instructions, 12/2018, A5E45307564-AA