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Fast commissioning / operating principle
3.3.1
Connecting the Leuze device
To connect the Leuze device to the internal RS 232 device interface, open the housing
of the MA
middle threaded opening.
Connect the cable to the internal device interface (X30, X31 or X32, see chapter 7.5.1).
Use rotary switch S4 (see chapter 8.2.5) to select the connected device.
Now screw the PG cable gland into the threaded opening to provide strain relief and
ensure protection class IP 65.
Finally, close the housing of the MA 248i.
Attention!
Only then may the supply voltage be applied.
Upon startup of the MA 248i, the device selection switch is queried and the gateway auto-
matically 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 connec-
tion.
3.3.2
Connecting the power supply and the bus cable
Ideally, use the ready-made cables listed in chapter 14.4.3 to connect the gateway to the
power supply via the PWR IN connection.
The ready-made cables listed in chapter 14.5.4 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.
3.4
Starting the device
Apply the supply voltage +18 ... 30VDC (+24VDC model); the MA
The PWR LED displays that it is ready for operation.
First, you need to assign its individual device name to the MA 248i. The PLC must commu-
nicate this device name to the participant during the "device naming". Further information
may be found below and in chapter "Step 6 – Configuration of the device name - naming
the device" on page 69.
12
248i
and lead the corresponding device cable (see chapter 14.6) through the
MA
248i
248i
starts up.
Leuze electronic
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