BENDIX BW2160 Benutzerhandbuch

The EC-30

™

 controller ABS ECU is available in different 

hardware confi gurations in order to support various ABS,  
ATC and  power line carrier (PLC) features.  See chart 3.

EC-30

™

 controller premium PLC hardware can be 

confi gured for four or six sensors, with or without ATC, and 
PLC can be disabled.  

EC-30

™

 controller basic models can not be confi gured for 

six sensors or ATC.

PLC hardware is needed to support PLC communication.

Always verify that you are working with the correct EC-30

™

 

controller by referring to the part number label on the ECU.

Effective March 1, 2001, all towing vehicles must control 
an in-cab trailer ABS warning lamp.  Trailers built after this 
date will transmit the status of the trailer ABS unit over the 
power line (blue wire of the J560 connector) to the tractor 
using PLC communications.

The PLC signal is usually broadcasted by the trailer ABS 
ECU.  The application of PLC technology for the heavy vehicle 
industry is known as PLC4Trucks.  The Bendix

®

 EC-30

™

 

controller premium with PLC, and basic with PLC, will support 
PLC communication in accordance with SAE J2497.

An EC-30

™

 controller with or without PLC can be identifi ed 

by the individual part number label on the ECU.  Also, an 
EC-30

™

 controller may have one of the following labels 

applied:

An oscilloscope can be used to verify the presence of a PLC 
signal on the power line.  The PLC signal is an amplitude 
and frequency modulated signal.  Depending on the fi ltering 
and load on the power line, the PLC signal amplitude can 
range from 5.0 mVp-p to 7.0 Vp-p.  Suggested oscilloscope 
settings are (AC coupling, 1 volt/div, 100 µsec/div).  The 
signal should be measured at the power leads of the 
EC-30

™

 controller.  See fi gures 3 & 4.

The EC-30

™

 controller will not broadcast PLC messages 

unless it is specially programmed to do so.  With this 
standard confi guration, an ABS trailer equipped with PLC or 
a PLC diagnostic tool will need to be attached to the vehicle 
in order to generate a PLC signal on the power line.

1 

 Required for all towing vehicles built after March 1, 2001.

 

 

 

 

 

 

4  

X 

X 

X 

 

X 

   

 

 

Premium 4, 

6 

X 

X 

X 

X 

 

X 

   

 

 

Basic PLC 4  

X 

X 

X 

 

X 

X X 

 

 

4, 6 

X 

X 

X 

X 

 

X 

X 

X   

  EC-17/EC-16 Service 4, 

6 

X 

X 

X 

X 

X 

X 

 

 

 

 

Replacement