Error log - Modbus

[Mr.D]

Hi Erwin,

I have changed the cable to a EiB Cable (4x0.8mm2), length of cable is 30-40 cm.
The wiring is as follows:
Spacelynk     iEM3150
D1               D1
D0               D0
0V               0V
gnd(RS232)     The symbol is a circle with 2 lines through

There are no scripts running that is requesting or polling information from the modbus.
I have restarted the SpaceLynk to make sure there are no other double scripts running.

Despite this, still the following errors in the log:
Schneider (RTU slave 2) read failed: Response not from requested slave
Schneider (RTU slave 2) read failed: Operation timed out
Schneider (RTU slave 2) read failed: Invalid data
Schneider (RTU slave 2) read failed: Invalid CRC
Scriptname in the log is "modbus"
These two errors do not have the same timestamp, it could be many minutes between "events"

Any idea?
BR,
Mr.D