InteliDrive Lite, SW version 1.9
ID-FLX-Lite-1.9r1 Reference Guide.pdf,
©ComAp – August 2015
132
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.
H
INT
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
