User's Manual

RTM Elster AMCO applicative PFS Coronis Systems
5.8.2.Reading back flow detection
Reading request data format
Applicative
command
Number of
parameters
to read
First
parameter ID
(back flow detection
on Port A)
first parameter
length
Second
parameter ID
(back flow
detection on
Port B)
second
parameter length
1 byte 1 byte 1 byte 1 byte 1 byte 1 byte
0x18 0x02 0x43 0x02 0x47 0x02
Reading acknowledgment data format
The total length is 10 Bytes
Applicative
Acknowledgment
command
Number of
parameters
returned
first
parameter ID
first
parameter
length
first
parameter
value
second
parameter ID
second
parameter
length
second
parameter
value
1 byte 1 byte 1 byte 1 byte 2 bytes 1 byte 1 byte 2 bytes
0x98 0x02 0x43 0x02 (*) 0x47 0x02 (*)
(*) once a back flow is detected ( according to the parameters settings), the least significant bit of the “Back
flow detection flags” is set to 1.
When month changes all the bits of this parameter are shifted left (from LSB to MSB).
Flag indicating back flow detection in month
Most Significant Byte Least Significant Byte
b7 b6 b5 b4 b3 b2 b1 b0 b7 b6 b5 b4 b3 b2 b1 b0
- - - Month
-12
Month
-11
Month
-10
Month
-9
Month
-8
Month
-7
Month
-6
Month
-5
Month
-4
Month
-3
Month
-2
Month
-1
Current
month
Clearing back flow detection flags can be done using Standard writing parameter command.
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