User manual - METER SRP-147-XC
1. Read of the displayed value (measurement), SRP-147-XC device address = 01h:
ADDR
FUNC
REG H,L
COUNT H,L
CRC L,H
01
03
00
01
00
01
D5
CA
a) The answer (we assume that the measure result is not out of range):
ADDR
FUNC
BYTE C
DATA H,L
CRC L,H
01
03
02
00
FF
F8
04
DATA H, L - displayed value = 255, no decimal point.
Decimal point position can be read from reg. 03h.
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 (20FDh)
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):
45
Summary of Contents for SRP-147-XC
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