B meters IWM-LR3 User Manual page 17

The Err field in the answer can take on the following meanings:
0x00 - No Error
0x01 - Out-of-range parameters error
0x02 - Device TypeError. The device type is incorrect.
0x03 - Incorrect request, password was not presented
0x04 - Length Error
0x05 - EEPROM Write Error
3.8 GET_METER_PAR (0x1B)
A command used to read the physical parameters of the counter.
R2H:
HEADER property
Fct C/R/A
1 byte 1 byte
0x1B 0
H2R:
HEADER property
Fct C/R/A Err
1 byte 1 byte 1 byte
0x1B 0 0
In the date field, the fields have the same meaning as the previous SET_METER_PAR command.
The Err field in the answer can take on the following meanings:
0x00 - No Error
0x02 - Device TypeError. The device type is incorrect.
0x03 - Incorrect request, password was not presented
0x04 - Length Error
3.9 SET_ALARM_PAR (0x26)
The command used to set alarm detection parameters. Data fields larger than bytes will be represented in MSB first.
R2H:
HEADER property
Fct C/R/A
1 byte 1 byte
0x26 0
H2R:
HEADER property
Fct C/R/A
1 byte 1 byte
0x26 1
IWM-LR3 - IWM-LR4
Err Chain
1 byte 1 byte
0 0
Chain Len
1 byte 1 byte
0 0x05
Err Chain
1 byte 1 byte
0 0
Err Chain
1 byte 1 byte
0 0
Len
1 byte
0x01
Date
Device
Active
Type
1 byte 1 byte
0x04
Date
Device Type
Len
property
1 byte 1 byte
0x09 0x04
Len
1 byte
0x00
17
Date
Device Type
property
1 byte
0x04
Reserved,
K Index Medium
For
1 byte 1 byte 1 byte
0x00
AlarmPar,
Ism
8 bytes
User Manual v1.0