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Proton Products InteliSENS DG1130 Diameter Gauge Instruction Manual (Issue 1a)
S
TANDARD
C
OMMUNICATIONS
I
NTERFACES
CAN-
BUS COMMUNICATIONS
This CAN-bus interface is fitted as standard. It operates independently of the other communications
interfaces and may be accessed at the same time as them.
The CAN-bus interface uses a proprietary Proton Products protocol. It is exclusively used to
communicate between the unit and other Proton Products modules. The unit automatically detects
connection to other modules and configures the bus appropriately; it is not normally necessary to
manually configure this interface.
The CAN-bus interface is not intended for use with an external CAN-bus network.
CAN-bus interface
The CAN-bus interface may be accessed through the “CAN / POWER” connector.
Connector type: DB9 male (plug)
Pin Designation Comment
2
CANL
3
GND
Ground reference (isolated from earth / shield).
5
Shield
Ensure that the cable shield is connected to this via the plug shield connection.
7
CANH
9
+24V
+24VDC power input (the gauge may be powered via this pin).
S
Shield
Ensure that the cable shield is connected to the plug shield connection.
CAN-bus LED indicator
CAN
LED status
Indication
Flashing green
Online
CAN-bus communications
Flashing red
Communication error
Extinguished
No communication
