Siemens FM 458-1 DP Manual page 19

I/O
CTS DP module name, connector of the Profibus DP interface
SLA
Diagnostics data required from the slave with the appropriate
station number (3 to 123)
LEN Number of the device-related diagnostic bytes; this means the
diagnostics bytes which extend beyond the Standard diagnostics.
Here, a maximum value of 234 may be set. Whether device-related
diagnostics data is available and, if yes, which significance they
have, should be taken from the user documentation of the relevant
DP slave.
EN Block enable. If EN=0, the block is not processed;
output OK=0 and YTS=1, the last value remains at the other
outputs.
OK Diagnostics data valid
ST1 Status 1 of the diagnostics according to the Standard (byte 1).
For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".
ST2 Status 2 of the diagnostics according to the Standard (byte 2).
For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".
ST3 Status 3 of the diagnostics according to the Standard (byte 3).
For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".
MPA Master Profibus address (byte 4 of the diagnostics according to the
Standard)
ID Identification number of the slave
(bytes 5 and 6 of the diagnosics according to the Standard)
D01
Device-related diagnostic bytes; 4 bytes are combined in one
32-bit
to
word. Bytes 7, 8, 9 and 10 of the diagnostics telegram can be
D59
found
in D01.
For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS
DP
coupling".
When data is entered at LEN, this has an influence on the
update
of the outputs. For LEN=0, these outputs are not updated.
For LEN=234, D01 up to and including D59 are updated.
Comment:
Bytes 1 to 6 of a diagnostics telegram for PROFIBUS DP
corresponds to the Standard Diagnostics; bytes from 7 onwards
depend on the particular slave (referred to the particular device).
QTS Block output QTS is used to display whether the block is operating
error-free (QTS = 1) or was de-activated after a communications
error message was entered (QTS = 0).
Function Blocks - FM 458-1 DP
Edition 12.2004
Communication blocks
(Initialization connection)
(Initialization connection)
(Default: 3)
(Initialization connection)
(Default: 0, i.e. only
Standard diagnostics, not
device-related diagnostic
bytes)
(Default: 1)
(Default: 0)
(Default: 0)
(Default: 0)
(Default: 0)
(Default: 0)
(Default: 0)
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