Installation
Model Fieldbus, 4-Wire
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5.6 Model Fieldbus, 4-Wire
5.6.1 Wiring
The 4-wire model fieldbus supports a M12 plug-in connector, 4 pin D-coded, and a screw retention feature.
Figure 5-9: M12 Connector Socket and Pin Assignment
For appropriate cables, see section 13.1.3
Ethernet PoE Cable (A-CB-xx-M12-W04-xx)
The 4-wire fieldbus models are supplied with power via the PoE standard (Power over Ethernet). PoE allows a
single cable to provide both data connection and electric power to the sensor. The following figure shows
exemplarily the connection to a PC.
Figure 5-10: Sensor Connection to a PC using PoE
5.6.2 Sensor Address
The factory default IP address for the Thermalert 4.0 sensor is 192.168.42.134
The last valid address is 254.
The IP address for the sensor is not free of choice: It must be unique in the network meaning that no other device
in the network including the PC network adapter may run at the same IP address.
Note
Ask your IT administrator for a free IP address to be used!
5.6.2.1 Advanced Addressing
Subnet Mask:
The Subnet Mask defines the interpretation of the IP address. The factory default setting is 255.255.255.0. The
Subnet Mask can be changed using the ASCII command <NM>.
M12-Pin
1
TX+
2
RX+
3
TX-
4
RX-
Data
PoE
Injector
Power
Power
Data
Field
PC
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