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5.7 Error m essages
Three different kind of errors might occur:
The body is an invalid command
The checksum is not correct
The device cannot be addressed (it might be switched off...)
The information sent back to the RCM about these errors does not include the status register
Error Protocol "EP"
Description: Via this answer the
command.
Example:
The
RCM
<STX> <TYPE> <ADDRH> <ADDRL>
Message
Since the command y does not exist for an
back to the
sum.
<STX> <TYPE> <ADDRH> <ADDRL>
Answer
Error Checksum "EC"
Description: Via this answer the
correct.
Example:
The
RCM
<STX> <TYPE> <ADDRH> <ADDRL>
Message
The correct checksum of the above command is 43. The
sends the command back to the
<STX> <TYPE> <ADDRH> <ADDRL>
Answer
is told by the
RCM
has sent a command x to the
m
0
2
, adds the extension
RCM
m
0
2
is told by the
RCM
has sent the following command:
m
0
2
RCM
m
0
2
of class m that the body has been an invalid
RCS
.
RCS
<Body>
<STATH> <STATL <CHKH> <CHKL> <ETX>
y
of class m, the
RCS
(Error Protocol), and calculates the new check-
EP
<Body>
<chksm>
<ERR>
y
48
EP
of class m that the checksum has not beeen
RCS
<Body>
<STATH> <STATL <CHKH> <CHKL> <ETX>
t
RCS
and adds the extension
<Body>
<chksm>
<ERR>
t
30
EC
4
8
sends this message
RCS
<CHKH> <CHKL> <ETX>
4
9
3
0
detects an checksum error,
(Error Checksum)
EC
<CHKH> <CHKL> <ETX>
2
e
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