Functional Description
Page 63
3.16
Digital I/O
The BL51E supports:
Input voltage range:
-
0 V DC to 50.4 V DC
External reference voltage V_REF (for definition logical high and low level):
-
20 V DC to 50.4 V DC
Switching voltage threshold:
-
Logical High: VIN > 0,45 x DIG_
-
Logical Low: VIN < 0,35 x DIG_
Input current:
-
Logical High: 5 mA
-
Logical Low: < 1 mA
Input frequency
-
10 Hz max.
3.16.1
Front Connection
Table 37.
Connector types – front I/O
Table 38.
Pin assignment – BIN IN 1 (6-pin PCB plug)
Table 39.
Pin assignment – BIN IN 2 (6-pin PCB plug)
Table 40.
Pin assignment – OPT OUT (6-pin PCB plug)
Note: Pin 2 (Ref. Ground) always has to be activated to ensure that all interfaces on the
6-pin headers work properly.
Connector
Type
On BL51E
6-pin, 2-row PCB plug, 3.5 mm, Phoenix Contact DMC 1,5/ 3-G1F-3,5-LR
P20THR, part number 1787027
Mating
6-pin, 2-row receptacle, 3.5 mm, e.g., Phoenix Contact DFMC 1,5/ 3-ST-
3,5-LR, part number 1790496
1
DIG_IN_1
2
DIG_IN_2
3
DIG_IN_3
4
DIG_IN_4
5
DIG_IN_5
6
DIG_IN_6
1
I
2
IBIS_TX_-
3
I
4
IBIS_RX_-
5
DIG_IN_7
6
ODO_IN
1
DIG_
2
DIG_IN_VREF-
3
OPT1_+
4
OPT1_-
5
OPT2_+
6
OPT2_-
1
2
5
6
1
2
5
6
1
2
5
6