PRODUCT DESCRIPTION
DC-DC power module
SKF Multilog On-line System IMx-Rail
User Manual Supplement
Revision B
9 (29)
1.2.4 Modbus interfacing to external systems
Modbus communication is a commonly used protocol for exchanging information
between systems, often from different suppliers or providers. Note that Modbus
TCP/IP is not available if the mobile data connection is in use. Refer to the
IMx-16/16Plus user manual for further information on the Modbus capabilities.
1.3 DC-DC power module
This module is included so that the IMx-Rail can be powered directly from the train
supply (24 to 110 V DC). Two IMx-Rail variants are available to service that input
voltage range:
CMON 4116-R-24:
24 V DC nominal (9 to 36 V DC)
CMON 4116-R-110:
110 V DC nominal (43 to 160 V DC)
The power module provides stable, isolated power at 24 V DC, to the IMx-16Plus. It
protects it from any incoming voltage transients whilst at the same time preventing
any disturbance to the train power bus system, from the IMx-Rail.
The power module is pre-wired to both the incoming supply (at the power connector)
and the IMx-16Plus module, internal to the IMx-Rail.
1.4 Enclosure
An outer enclosure houses all the electronics, provides cable gland areas pre-
prepared for the sensor, GPS and other cables and the lid incorporates a single
antenna that supports the internal mobile data and Wi-Fi modules. The 21 cable
entries provided are all supplied fitted with blanking plugs. See also
on removing the enclosure lid a
ground bar and terminals for the connection of train cabling are easily accessed.
The IMx-Rail is designed to be mounted on either the train bogie, train car chassis or
internally in a car/coach as appropriate to the equipment and bearings being
monitored.
