Fast commissioning / operating principle
Le
u
ze electronic
MA 255
i
1
3
TNT
35/7-2
4
V
3.3.3
Setting the DeviceNet baud rate
Set the baud rate of the gateway via the
S3
rotary switch to the value defined in the control.
Notice!
The DeviceNet baud rate is defined for the entire network in the planning tool/control. The
baud rate is set on the MA 255
i
via the baud rate selector switch. Only if the baud rates are
the same is communication with the MA 255
i
possible.
Figure 3.3:
Rotary switch for setting baud rate
Finally, close the housing of the MA 255
i
.
Attention!
Only then may the supply voltage be applied.
Upon startup of the MA 255
i
, the device selection switch and the address settings are
queried and the gateway automatically sets itself to the Leuze device.
Connecting functional earth FE
Ensure that the functional earth (FE) is connected correctly.
Unimpaired operation is only guaranteed when the functional earth is connected properly.
All electrical disturbances (EMC couplings) are discharged via the functional earth
connection.
3.3.4
Connecting the power supply and the bus cable
Ideally, use the ready-made cables listed in chapter 14.5.3 to connect the gateway to the
power supply via the
PWR IN
connection.
The ready-made cables listed in chapter 14.6.4 are preferred for connecting the gateway
to the fieldbus via the
HOST / BUS IN
connection.
If applicable, use the
BUS OUT
connection if you would like to construct a network with
linear topology.
