Hardware Manual COMBILOG 1020
126
PROFIBUS - layer 2 commands
DSAP service
data to the module
(ReqDataUnit)
data from the module (Res-
DataUnit)
read device identification
0 ident
no
data
<ident>
read status information
10 SRD
no
data
<status>
read device information
11 SRD
no
data
<Ginfo>
read channel information
12 SRD
<channel
number>
<Kinfo>
read data from a channel
13 SRD
<channel
number.>
<Kx>
write data to a channel
SRD <channel number> <Px>
response without data
14
SDA <channel number> <Px>
pos./neg. acknowledge
SDN <channel number> <Px>
no response
tare / reset a channel
SRD <channel number>
response without data
15
SDA <channel number>
pos./neg. acknowledge
SDN <channel number>
no response
read, write and tare / reset channels
SRD [<tare/reset>[<P1>[... [<Pn>] ] ] ] <status> <K1> ... <Kn>
0
SDA [<tare/reset>[<P1>[... [<Pn>] ] ] ] pos./neg. acknowledge
SDN [<tare/reset>[<P1>[... [<Pn>] ] ] ] no response
Table 11.13 PROFIBUS - layer 2 commands
Note:
If more data are in the ReqDataUnit as required, they will be ig-
nored.
Summary of Contents for COMBILOG 1020
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Page 2: ...Hardware Manual COMBILOG 1020 2 Issue 03 11 2005 Technical data are subject to change...
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