Dinel PDU-40-W Series, User Manual

Page: 53 / 56

User manual - METER PDU-4x0-W
4. Change of baud rate of all devices connected to the net (BROADCAST message).
ADDR FUNC REG H,L COUNT H,L CRC L,H
00 06 00 22 00 04 29 D2
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 REG H,L COUNT H,L CRC L,H
01 03 00 01 00 03 54 0B
COUNT L - the count of being read registers (max.16)
The answer:
ADDR FUNC BYTE C DATA H1,L1 DATA H2,L2 DATA H3,L3 CRC L,H
01 03 06 00 0A 00 00 00 01 78 B4
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.
53
i
i