ECM NH3 5250, Instruction Manual, Page: 36 / 62

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Appendix B: Module Stand-alone Mode and EIB Mode
NH
3
CAN modules can be used in conjunction with an analyzer (EIB mode) or on its own
(Stand-alone mode). When used as part of an analyzer (ex. NH
3
5250), the module is setup
in EIB mode. When delivered to be used alone, the module is setup in Stand-alone mode.
In EIB mode, the module communicates to the display head of an analyzer via a special high-
speed communication protocol. The module must be EIB mode when on the EIB with a
display head. When in Stand-alone Mode, the module communicates via the common 500
kHz CAN broadcast protocol. This is the default rate and it is programmable.
The module must be properly configured in EIB mode or Stand-alone mode depending on
how it will be used.
To convert from one mode to the other requires software reprogramming of the lambda
module followed by the removal (set to EIB) or installation (set to Stand-alone) of a jumper
inside the module.

To convert a module from Stand-alone to EIB Mode
1. Connect the module to a power supply and a PC via a supported USB-to- CAN
communication adapter (
Kvaser, ETAS, Peak VectorCAN CAN adapter card
) using
the cabling shown below. A sensor does not have to be connected to the module.
Note that only one module is connected and the display head is not involved.
Figure B1: Module prepared for Reprogramming
P/N 11-02, DC Power Cable,
DB9F, Banana Plugs (shown), or
P/N 11-01, DC Power Cable,
DB9F, Spades
To power
To CAN adapter
on PC
Resistor
“T”
Module Serial
Number