B7A/B7AS
B7A/B7AS
20
Nomenclature
B7A
Power supply/error
indicator
Power terminals
Transmission terminals
I/O indicators
I/O terminals
Functions
B7AS
Functions
Power supply/
error indicator
Power terminals
Transmission terminals
I/O terminals
I/O indicators
Indicator Operation
Indicator
Function
POWER
(Input Terminal)
G
Lit when power is supplied and the
Terminal is operating.
N
Not lit when power is not supplied.
POWER/ERR
(Output Terminal)
G
Lit when power is supplied and the
Terminal is operating without error.
R
Lit during transmission errors.
N
Not lit when power is not supplied.
I/O
O
Lit when the input signals are ON.
N
Not lit when the signals are OFF.
Note:
G: Green indicator lit; R: Red indicator lit;
O: Orange indicator lit; N: Not lit
Recommended Solderless Terminals
Wire
JIS specifications
0.75 mm
2
(AWG#18)
RAV 1.25 to 3.5 (vinyl-insulated round
wire) or RAP 1 25 to 3 5
1.25 mm
2
(AWG#16)
wire) or RAP 1.25 to 3.5
(nylon-insulated round wire)
Functions
I/O
classification
Display
Description
Input
NPN
Input configuration
Indicates the compatible transistor type for the input device.
NPN
I/O delay time
Indicates the typical I/O delay time of the B7A. Use a combination of an Input and
an Output Link Terminal with the same I/O delay time.
Output
0 1A
NPN
Output configuration
Indicates the compatible transistor type for the output transistor.
0.1A
NPN
Output current
Indicates the rated output current value of the B7A per point.
I/O delay time
Indicates the typical I/O delay time of the B7A. Use a combination of an Input and
an Output Link Terminal with the same I/O delay time.