IWM-LR3 - IWM-LR4
16
User Manual v1.0
H2R:
The 31 and 30 bits of the Forward counter field have the following meaning:
0b00 - Meter expressed in Litres
0b01 - Decalitres express counter
0b10 - Hectolitres counter 0b11 - Not allowed
The backward counter field is always expressed in liters.
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
3.7 SET_METER_PAR (0x1A)
The command used to set the physical parameters of the counter. Data fields larger than bytes will be
represented in MSB first.
R2H:
H2R:
The Date field is as follows:
HEADER property
Date
Fct
C/R/A
Err
Chain
Len
Device Type Forward
counter
Backward
Counter
1 byte
1 byte
1 byte
1 byte
1 byte
1 byte
4 bytes
1 byte
0x17
1
0
0
0x09
0x04
HEADER property
Date
Fct
C/R/A
Err
Chain
Len
Device
Type
property
Active
K Index
Medium
Reserved,
For
1 byte
1 byte
1 byte
1 byte
1 byte
1 byte
1 byte
1 byte
1 byte
1 byte
0x1A
property
0
0
0
0x05
0x04
0x00
HEADER property
Fct
C/R/A
Err
Chain
Len
1 byte
1 byte
1 byte
1 byte
1 byte
0x1A
property
0
0
0
0x00
Name
Type
meaning
Active
Uint8_t
0 Inactive count
1 Active Count
K Index
Uint8_t
0 1 litre
1 10 litres
2 100 litres
Medium
Uint8_t
0 Water
1 Hot water
