Level Pro ITC 450 User Manual page 54

ITC 450/470
User manual
4. Change of baud rate of all devices connected to the net (BROADCAST message).
ADDR FUNC
00 06
DATA H - 0
DATA L - 4, new baud rate 19200 baud
Device do not reply to BROADCAST-type messages.
5. Read of the registers 1, 2 and 3 in one message
(example of reading a number of registries in one frame) :
ADDR FUNC
01 03
COUNT L - the count of being read registers (max.16)
The answer:
ADDR FUNC BYTE C
01 03 06
DATA H1, L1 - reg. 01h (10 - displayed value "1.0"),
DATA H2, L2 - reg. 02h (0 - no errors),,
DATA H3, L3 - reg. 03h (1 - decimal point position " 0.0").
There is no full implementation of the Modbus Protocol in the device. The functions presented
above are available only.
REG H,L
00 22
REG H,L
00 01
DATA H1,L1 DATA H2,L2
00 0A 00
COUNT H,L
00 04
COUNT H,L
00 03
DATA H3,L3
00 00 01
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CRC L,H
29 D2
CRC L,H
54 0B
CRC L,H
78 B4
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