Description Of The Input Bytes (Status Bytes); Structure And Meaning Of The Input Bytes (Status Bytes) - Leuze electronic MA 258i Operating Instructions Manual

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10.2

Description of the input bytes (status bytes)

10.2.1 Structure and meaning of the input bytes (status bytes)

7
ND
DLC7
Table 10.1:
Bits of the input byte (status byte) 0
Bit no.
0
2
3
4
5
6
7
Bits of the input byte (status byte) 1
Bit no.
0 ... 7
Notice!
T-bit means toggle bit, i.e. this bit changes its state on each event ("0" → "1" or "1" → "0").
54
6 5 4
BO DL BLR
DLC6 DLC5 DLC4
Data byte / parameter byte 0
Data byte / parameter byte 1
Structure of the input bytes (status bytes)
Designation Meaning
W-ACK Write-Acknowledge (write confirmation when using buffer)
SMA Service mode active(service mode activated)
DEX Data exist (data in transmit buffer)
BLR Next block ready (new block ready)
DL Data loss
BO Buffer overflow
ND New data only in Transparent mode
Designation Meaning
DLC0 ... DLC7 Data Length Code (length of the following user data)
3 2
DEX SMA
DLC3 DLC2
...
MA 258i
1 0
W-ACK
DLC1 DLC0
Leuze electronic
Status byte 0
Status byte 1
Data