User manual - METER SRP-73
b) The answer (if an error occur):
ADDR FUNC
ERROR
CRC L,H
01
83
60
41
18
ERROR - error code = 60h, bottom border of the measurement range is exceeded
2. Read of device ID code
ADDR
FUNC
REG H,L
COUNT H,L
CRC L,H
01
03
00
21
00
01
D4
00
The answer:
ADDR
FUNC
BYTE C
DATA H,L
CRC L,H
01
03
02
DATA - identification code (20F7h)
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.
49
i
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