Simex STI-N118, User Manual

Page: 45 / 48

User manual - RATEMETER STI-N118
3. Change of the device address from 1 to 2 (write to reg. 20h)
ADDR FUNC REG H,L DATA H,L CRC L,H
01 06 00 20 00 02 09 C1
DATA H - 0
DATA L - new device address (2)
The answer (the same as the message):
ADDR FUNC REG H,L DATA H,L CRC L,H
01 06 00 20 00 02 09 C1
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. Try to write improper data to register (register 04h):
ADDR FUNC REG H,L DATA H,L CRC L,H
01 06 00 04 00 10 C9 C7
DATA H, L written value (10h = 16) out of allowable range (0 ÷ 5)
Device response ( with exception code 03h):
ADDR FUNC ERR CRC L,H
01 86 03 09 C1
There is no full implementation of the Modbus Protocol in the device. The
functions presented above are available only.
45
i
i