Eaton ELC-PB, Programming Manual

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E L C P r o g r a m m i n g M a n u a l
F or mo re inf or ma tio n visi t: www.eato n.co m MN 05 0 03 0 03 E A -22
What is the “other information” in Data 0 and Data 1?
Exception response:
If the ELC is in slave mode and is unable to execute the Modbus function, it will return one of the
following Exception codes:
Exception
code:
Meaning:
01
Illegal function code:
The function code received in the command message is not supported by
the ELC.
02
Illegal device address:
The device address received in the command message is not valid for the
ELC.
03
Illegal device value:
The device value received in the command message is not valid for the
ELC.
07
Check Sum Error
Check if the check Sum is correct
Illegal command messages
The command message is too short.
Command message length is out of range.
A.7 Function Code Support (Master mode)
The ELC can function as a Modbus master device. Modbus messages are generated by the ELC
based on the inclusion of Modbus message command. The table below describes the Modbus
message commands and the corresponding Modbus Function codes.
Command Function Code Description
MODRD
API=100
03H Read multiple registers The ELC can read up to 6 Registers
MODWR
API=101
06H Write Single Register The ELC can write a single register value
MODRW
API=150
Selectable in the instruction.
ELC-PB
, ELCB-PB support (H03), (H06), (H10),
ELC-PC/PA/PH support (H02), (H03), (H06), (H10)
and (H0F), ELC-PV, ELCM-PH/PA support (H02),
(H03), (H05) ,(H06), (H10) and (H0F).