INSTALLATION AND OPERATING INSTRUCTIONS
GPS module (optional)
36 (66)
SKF Multilog On-line System IMx-16Plus
User Manual
Revision Letter A
2.8 GPS module (optional)
An external GPS module is available as an option. When fitted, GPS data can be
requested by the IMx-16Plus, via Modbus RTU, over the RS485 2-wire connection.
On this interface the IMx-16Plus is the master device and the GPS module, the slave
device.
The GPS module is connected to the IMx-16Plus, top end cap*, refer
below and section
*If there are no free/unused 24 V DC power (P) connections on the top end cap then
the unallocated P terminal on the bottom end cap can be used,
Table 4
GPS module connections to IMx-16Plus
Wire colour
Description
IMx-16Plus terminal
Brown
GPS module power
Use any available ‘
P
’
Black
RS485 A
A
White
RS485 B
B
Blue
Module 0V
G
Grey
Not used
-
GPS module green flashing LED: power on, amber flashing: Modbus activity
The IMx-16Plus
to GPS module RS485 link, doesn’t requires a termination
resistor.
Refer also to
for general information on RS485 Modbus connections.
