5 error elimination, 1 profibus error elimination, Error elimination 3.5.1 – YSI IQ S ENSOR N ET Field bus linking User Manual
Page 19: Profibus error elimination
![background image](/manuals/310686/19/background.png)
IQ S
ENSOR
N
ET
Field bus linking
Configuring the IQ S
ENSOR
N
ET
17
ba76148e01
06/2013
3.5
Error elimination
3.5.1 PROFIBUS error elimination
Data transmission
between the bus master
and IQ S
ENSOR
N
ET
is
faulty
The PLC does not
contain any plausible
input data
Here you will find causes and actions to take of errors con-
cerning the PROFIBUS and Modbus communication only.
General errors of the IQ S
ENSOR
N
ET
system are dealt with
in chapter 10 W
HAT
TO
DO
IF
....
Cause
Remedy
– Incorrect wiring
– Check/change the connections
– Use checklist according to sec-
– Incorrect setting of the
address
– Check/change the setting of
the address (see section 3.2.1)
– Incorrect protocol
– Check the version of the GSD
file
– Adapt the protocol
– IQ S
ENSOR
N
ET
defective
– Send IQ S
ENSOR
N
ET
to YSI
Cause
Remedy
– Input data and output data
are not consistent
– When programming the PLC,
define input data and output
data as consistent over the
entire data length
– The data interpretation of the
PLC is not correct
– Observe the data alignment of
the PLC data representation. If
necessary, exchange the
high-order and low-order bytes
word by word