InteliDrive Lite, SW version 1.9  
ID-FLX-Lite-1.9r1 Reference Guide.pdf, ©ComAp – August 2015   
The  complete  description  of  Modbus  communication  protocol  can  be  found  in  Modbus  Protocol 
Reference  Guide PI-MBUS-300  and Open  Modbus  Specification Release  1.0.  Both documents are 
available from web site at http://www.modicon.com/openmbus/ . 
 
Practical example: 
Request: 01 03 00 35 00 03 15 C5 
01    = Controller address 
03    = Modbus function code (Read Multiple Registers) 
00 35    = Register address: Register number (40054) – 40001 = 53 DEC => 35 HEX IL-NT 
     Register address: Register number (40061) – 40001 = 60 DEC => 3C HEX IC-NT 
00 03    = Number of registers (40054 – Oil press, 40055 – Engine temp, 40056 – Fuel level)  
= 3 DEC = > 03 HEX 
C5 15    = CRC (write LSB MSB !) 
 
A part of Cfg Image (Modbus Register …) 
 
 
Response: 01 03 06 00 27 00 2E 00 2B 35 64 
01    = Controller address 
03    = Modbus function code (Read Multiple Registers) 
06    = Length of read data in Bytes (in HEX) 
00 27    = 27 HEX => 39 DEC => 3,9 Bar (Oil pressure is represented with 1 decimal in Bars) 
00 2E  = 2E HEX => 46 DEC => 46°C (Engine temperature is represented with 0 decimals in 
°C) 
00 2B    = 2B HEX => 43 DEC => 43% (Fuel level is represented with 0 decimals in %) 
64 35    = CRC 
 
11.4  ECU engine support 
InteliDrive Lite firmware branch covers both standard and electronic controlled (monitored) engines. 
The  appropriate  engine/ECU  type  is  selected  in  PC  tool  LiteEdit  like  other  peripheries.  Press  the 
 button in LiteEdit configuration window Modify.  
 
HINT 
Import latest ECU list – ECU list-x.x.iwe for update engine ECU specification. 
Select the proper esl file in LiteEdit->Options->ESL files - typically Allspeed.esl. 
 
1. Connection 
 
Direct RS232 
Direct RS485 
Remote modem 
Ethernet IB-NT 
Ethernet IB-Lite 
 
 
2. Setponts 
 
Comms settings: 
COM1 Mode / COM2 Mode 
ModbusComSpeed 
3. Communication 
 
Request  
Response