Manual Supercom 636 R+W rev. 010312
11
Keys
Optional record
xx
Value LSByte first
yy
Value MSByte first
ch
ASCII character
cs
er er
Detailed errors
636
M-Bus standard
bit0
†
Tamper
bit1
Accumulators low
Battery low
bit2
†
External alarm
bit3
†
Battery cut
bit7..4
†
RSSI
bit8
SND_UD frame: unknown CI.
bit9
SND_UD frame, structured write: unknown field.
bit10
†
bit11
SND_UD frame, structured write: bad field size.
bit12
SND_UD frame, structured write: memory overflow.
bit13
†
bit14
Invalid time clock
bit15
Last radio process error
Le
Ls
Length of ASCII character string
Warning
: according to the M-Bus standard, the first byte following the length byte is
the rightmost character of the string, and the last byte is the leftmost character.
mo
More records in next telegram :
0Fh
no
1Fh
yes
pp
Parameter flags
bit0
When the selected device is in the device list, but not yet read :
0: send an ""empty"" RSP_UD (with just the 12 bytes header)
1: do not send anything
st
Status
636
M-Bus standard
bit1..0
Application
Application
00b
No error
No error
01b
†
Application busy
10b
Any application error
Any application error
11b
†
Reserved
bit2
Accumulators low
Power low
bit3
†
Permanent error
bit4
†
Temporary error
bit5
†
Manufacturer specific
bit6
Invalid time clock
Manufacturer specific
bit7
Last radio process error
Manufacturer specific
† Not used.
The value of Check Sum is calculated from arithmetical sum modulo 256 of each byte of
the frame except the fields: Start, Length (if any), Check Sum and Stop.
Length of the M-Bus frame. The fields Start, Length, Check Sum and Stop (6 bytes) are
not included in the calculation of the Length field. The Length field is repeated twice
preceded and followed by the Start field 68h.
Содержание Supercom 636
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