Datasheet

Telegram
Leuze electronic MA 248i 53
TNT 35/7-24V
Bit 7: New data: ND
This bit is only relevant in Transparent mode.
10.2.3 Detailed description of the bits (input byte 1)
Bit 0 … 7: Data length code: DLC0 … DLC7
10.3 Description of the output bytes (control bytes)
10.3.1 Structure and meaning of the output bytes (control bytes)
Table 10.2: Structure of the output bytes (control bytes)
Bits of the output byte (control byte) 0
Input data Description Addr. Data
type
Value range Default
ND
New data
(new data)
This bit is toggled on each data set that is sent from the gate-
way to the PLC. This can be used to differentiate between
multiple, identical data sets that are sent to the PLC.
0.7 Bit
0->1; 1->0:
On each status
change for new data
0
Input data Description Addr. Data
type
Value range Default
DLC0 … DLC7
Data length code
(number of user data in bytes)
Stored in these bits is the number of user data bytes trans-
mitted to the PLC which follow.
1.0 …
1.7
Bit
1
h
(00001
b
) …
FF
h
(00255
b
)
0h (00000b)
76543210
ND Address 4 Address 3 Address 2 Address 1 Address 0 Broadcast
Command
mode
Control byte 0
CTB SFB R-ACK Control byte 1
Data byte 1
DataData byte 2
…
Bit no. Designation Meaning
0 Command mode Command mode
1 Broadcast Broadcast
(only relevant with a connected MA 3x)
2 … 6 Address 0 .. 4 Address bits 0 .. 4
(only relevant with a connected MA 3x)
7ND New data