Status displays and operational controls
Le
u
ze electronic
MA 255
i
3
7
TNT
35/7-2
4
V
Circuit board element
designation
Function
X1
Operating voltage
PWR IN
M 12 connector for operating voltage (18 … 30 V DC) MA 255
i
and connected
Leuze device xx
X2
Output voltage
PWR OUT
M 12 connector for other devices (MA, BCL, sensor, …)
VOUT = VIN max. 3 A
X4
HOST interface
BUS IN
HOST interface for connecting to the fieldbus
X5
HOST interface
BUS OUT
Second BUS interface for creating a network with other participants in a linear
topology
X30
Leuze device
JST plug connector with 12 pins
Connection of the Leuze devices with 5 V / 1 A (BCL 8, BPS 8 and hand-held
scanner)
X31
Leuze device
JST plug connector with 10 pins
Connection of the Leuze devices (BCL, RFI, RFM,…)
Pin VINBCL with default setting = V+ (18 - 30 V)
X32
Leuze device
JST plug connector with 6 pins
Connection of the Leuze devices (BCL, RFI, RFM,…)
Pin VINBCL with default setting = V+ (18 - 30 V)
X33
RS 232 service interface
9-pin SUB-D connector
RS 232 interface for service/setup operation. Enables the connection of a PC via
serial null modem cable for configuring the Leuze device and the MA 255
i
.
S4
Rotary switch
Rotary switch (0 … F) for device selection
Default setting = 0
S10
DIP switch
Service switch
Switch between service Leuze device (DEV), service fieldbus gateway (MA) and
operation (RUN).
Standard setting = operation.
J1, J2
Jumper
Bridging, separating switching input/output
(interruption of connection between the two PWR M12 connectors of the
SWIO 1/SWIO 2)
S1
Rotary switch
Rotary switch (0 … 9) for address selection 10^0
Default setting: position 0
S2
Rotary switch
Rotary switch (0 … 9) for address selection 10^1
Default setting: position 0
S3
Rotary switch
Baud rate selector switch pos 1-3 (125/250/500 kBd)
Default setting = Pos 1