SICK AHS/AHM36 SAE J1939, Operating Instructions Manual

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29-bit identifier Data field
Pri‐
orit
y R DP PD
U
Coun‐
ter-part
Adr SourAdr
Enc Adr. Mes.ID Param-
Idx Param-
Lngt Err-
code D5 D6 D7 D8
7 0 0 23
9 0 129 1 0 0 0 0 0
Write parameter
The counterpart CA changes a parameter within the encoder CA.
Request from counterpart CA
If the counterpart wants to change the encoder parameters, the message ID must have
the value two. In this case the counterpart CA sends the following message to the
encoder, for example to change the counting direction to ccw (counterclockwise).
29-bit identifier Data field
Pri‐
orit
y R DP PD
U
DestAdr
Enc-
Adr. SourAdr
Coun‐
ter- part
Adr. Mes.ID Param-
Idx Param-
Lngt Err-
code D5 D6 D7 D8
7 0 0 23
9 2 129 1 0 1 0 0 0
Response from the encoder CA
A successful encoder response to the counterpart CA write request shows, for example,
that the actual counting direction was set to ccw.
29-bit identifier Data field
Pri‐
orit
y R DP PD
U
DestAdr
Coun‐
ter- part
Adr SourAdr
Enc-Adr Mes.ID Param-
Idx Param-
Lngt Err-
code D5 D6 D7 D8
7 0 0 23
9 0 129 1 0 1 0 0 0
A failed encoder response to a counterpart CA write request shows, for example, that
parameter index 136 is not supported, as indicated by error code 01.
29-bit identifier Data field
Pri‐
orit
y R DP PD
U
DestAdr
Coun‐
ter- part
Adr SourAdr
Enc-Adr Mes.ID Param-
Idx Param-
Lngt Err-
code D5 D6 D7 D8
7 0 0 23
9 0 136 1 1 1 0 0 0
5.5.2 Parameter index
The parameter index defines which parameter is addressed, e.g., index 129 as the
parameter for the counting direction. All parameters are listed in the Parameter value
section
see "Parameter value", page 19 .
5.5.3 Parameter length
The parameter length specifies the number of parameter value data. All parameters are
listed in the Parameter value section
see "Parameter value", page 19 .
5
SAE J1939 INTERFACE
18 O P E R A T I N G I N S T R U C T I O N S | AHS/AHM36 SAE J1939
AHS/AHM36 SAE J1939 Inox 8027379/2022-01-21 | SICK
Subject to change without notice