Local Software Mode of Operation
CAN-Control-I/O Software Rev. 1.1
2 - 6
2.2.3 Status Messages of Outputs by means of TxId2
The module can send status messages at Tx identifier TxId2. The data length is always 7 bytes.
The transmission can be started by an edge change of error signals of the output drivers or a change of
the supply voltage level of the drivers (i.e. in common with TxId3). Furthermore a transmission of
status messages in periodical intervals or by means of a remote request are possible.
The conditions for activating the transmission of the status message are transmitted by means of the
user parameter ‘
outerr/vccmask
’.
TxId
Byte 1
Byte 2
Byte 3
Byte 4
TxId2
Bit...
Bit...
Bit...
Bit...
7 6
5 4 3 2
1 0 7 6
5 4 3 2
1 0 7 6
5 4 3 2
1 0 7 6
5 4 3 2
1
0
Read back of the programmed desired values (
prog. OUT
) of output Q...
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6
5 4 3 2
1
0
TxId
Byte 5
Byte 6
Byte 7
Byte 8
TxId2
not transmitted
errstat
vccerr
vccstat
Table 2.2.2:
Status messages on TxId2
Explanation of the individual status messages:
prog. Out
(programmed output value)
31...0...
Byte 1 to 4 return the level of the outputs set by means of the CAN (desired value).
'1' --
<
output active (on)
'0' --
<
output not active (off)
errstat
(error status)
Byte 5 returns the error status of the 8 output groups in binary code. If an error signal
of a groups is active, the according bit is set to ‘1’.
Bits of parameter
errstat
7
6
5
4
3
2
1
0
Errors signal of
output groups
7
6
5
4
3
2
1
0
Table 2.2.3:
Coding of the error signals of the output groups
Содержание C.2071.01
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