Omega i-SERIES User Manual page 46

Example:
SEND TO DEVICE: Address 05, read (03) register 04 - inactive (see Table 6.2)
DEVICE FUNCTION
ADDRESS CODE
05
RETURNED FROM DEVICE:
DEVICE FUNCTION
ADDRESS CODE
05
Example:
SEND TO DEVICE: Address 120 (Hex 78), write (06) to register 35 (Hex 23) - inactive
(see Table 6.2)
DEVICE FUNCTION
ADDRESS CODE
78
RETURNED FROM DEVICE:
DEVICE FUNCTION
ADDRESS CODE
78
Example:
SEND TO DEVICE: Address 01, write (06) to register 12 (Hex C) value 300 (Hex 12C)
–out of range (see Table 6.2)
DEVICE FUNCTION
ADDRESS CODE
01
RETURNED FROM DEVICE:
DEVICE FUNCTION
ADDRESS CODE
01
When device returns an error massage, it add 80 Hex to the Function Code
(03 + 80 = 83 or 06 + 80 = 86)
STARTING
REGISTER
03 00
ERROR
RESPONSE
83 02
REGISTER
06 00
ERROR
RESPONSE
86 02
REGISTER
06 00
ERROR
RESPONSE
86 03
NUMBER OF
REGISTERS
04 00 01
CRC
81 30
DATA/
VALUE
23 00 00
CRC
12 78
DATA/
VALUE
0C 01 2C
CRC
02 61
42 42
CRC
C4 4F
CRC
73 A9
CRC
49 84