Situation
#2:
ERROR:
ILLEGAL
DATA
ADDRESS
.
The
address
settings
are
not
allowable
addresses
for
the
slave.
Solution:
Check
and
fix
the
RegStartAddr
and
RegCount
settings.
UseComPort
SlaveModbusID
FunctionCode RegStartAddr RegCount
2
1
3
178
2
2
1
3
124
1
2
2
3
178
2
2
2
3
124
1
2
3
3
178
2
Copyright
©
2014
ICP
DAS
Co.,
Ltd.
All
Rights
Reserved.
∗
E
‐
mail:
‐
28
‐
Situation
#3:
ERROR
appeared
only.
The
slave
device
is
abnormal,
you
have
to
check
the
responses
from
the
device.
Solution:
Step
1:
Power
cycle
the
slave
device.
Step
2:
Use
third
‐
party
communication
software
to
get
the
error
code
responded
by
the
slave
device,
and
follow
the
instructions
in
the
user
manual
for
the
device
to
solve
the
problem.
