INSTALLATION AND OPERATING INSTRUCTIONS
SKF Multilog On-line System IMx-16Plus
24 (66)
SKF Multilog On-line System IMx-16Plus
User Manual
Revision Letter A
An external resistor of 120 ohms is provided by SKF as well as double deck terminals
to facilitate its installation. This resistor is colour-coded black,
Figure 8
120-ohm resistor for RS485, bus termination
For more information regarding RS485 and Modbus, refer to "Modbus for SKF
Multilog On-line System IMx and SKF @ptitude Observer
”
and also the application
note “General Modbus
Protocol Considerations for IMx
Devices”. Also, refer to the
tables and pictures in chapter
, for a complete list of connections and their location
on the device.
Note that the IMx-16Plus does not provide fail-safe bias to the bus.
2.5.6 LED indicators
The IMx-16Plus has two LED indicators on its top end cap (so only visible when any
outer cabinet is opened), a green LED for Power and a red LED for System, as
shown in
Figure 9
IMx-16Plus LED Indicators
While the main software is reading the configuration and setting up the system, the
SYS LED is fast flashing (approximately four times per second). When the system
configuration is complete, the SYS LED will be off, if it remains solid on, this indicates
that the IMx-16Plus is in an error state. In the latter case, contact TSG for advice and
further information.
Note that there is a thirty second delay after the configuration period before the
measurement results are provided, to ensure that the system is producing valid data.
The SYS LED also has a slow flash rate (approximately once per second), the
functionality of which is software configurable. By default this is turned off, but for
example, it may be used to indicate sensor cable fault or cable fault from an external
communication source (e.g. Modbus). For configuration details refer to the
@Observer User Manual.
