Connections and LEDs

CAN Bus Module

900_Abmessungen_EasyNOx-in-Gehäuse

Designation

Function

P1, +, –, G1
P2, +, –, G2

Measurement connections for the thermocouples

P3, +, –, G3

Analog input for a manifold pressure or load signal

P4, +, –, G4

Optional analog current input, whose input current can be displayed in the NOX monitor of the EasyNOₓ (see section Overview).

Term Off/On

Slide switch for CAN bus termination

V+, GND

Connection for the supply voltage and for looping through the supply voltage

CAN-L, CAN-H

Port for communication via the CAN bus

ON/CAN

The LED indicates the J1939 status of the CAN bus module:

  • Green: The CAN bus module is in "Error Active" state.
  • Glowing green, 4 times flashing red: The CAN bus module is in "Error Passive" state.
  • Red: The CAN bus module is either in "Bus Off" state or there is an error regarding the set bit rate or node ID.

ERROR

The LED indicates the device status of the CAN bus module:

  • Green: The CAN bus module works flawlessly.
  • Flashes red repeatedly 1 time long and 1 time short: The bit rate is set incorrectly.
  • Flashes red repeatedly 1 time long and 2 times short: The node ID is set incorrectly.
  • Flashing steadily red: an unsuitable sensor or no sensor connected

Modul-ID

DIP switches for setting the node ID of the CAN bus module (see section Node ID CAN Bus Module)

Baud

DIP switches for setting the bit rate of the CAN bus module (see section Bit Rate CAN Bus Module)

 

The wiring and configuration of the CAN bus module is described in section CAN Bus/NOₓ Sensor Module.