JUMO DICON 400, Interface Description, Page: 15 / 44

15
3 Functions
The following functions are available to the instrument:
3.1 Read n words
This function reads n words, starting from a defined address.
Data request
Response
Example Read the 2 setpoints of the controller
Word address = 0x1053 (setpoint W1)
Data request:
Response:
Function number Function
0x03/0x04 Read n words
0x06 Write 1 word
0x10 Write n words
Slave
address Function
0x03 or 0x04 Address of
first word No. of words
(max. 127) Checksum
CRC16
1 byte 1 byte 2 bytes 2 bytes 2 bytes
Slave
address Function
0x03 or 0x04 Number of
bytes read Word
value(s) Checksum
CRC16
1 byte 1 byte 1 byte x byte(s) 2 bytes
07 03 10 53 00 04 B0BE
07 03 08 0000 41C8 0000 4120 5416
Setpoint 1
(25.0)
Setpoint 2
(10.0)