9.OPTION (Option card required)
133
9-1-2. Equivalent circuit (output)
Output comprises open-collector circuit.
9-1-3. Equivalent circuit (input)
Two states of input signal (High and Low) are produced by opening input from, or
closing to the COM terminal. Opening/closing of the input can be realized either by using
contact devices (relay, switch) or non-contact devices (transistor, open-collector TTL).
9-1-4. BCD data output
Measured data is sent out in 5-digit BCD format: each digit comprises of 4 binary bits
(0 or 1) weighted by 8, 4, 2, 1.
Output data
Negative
0
OFF
1
ON
●
State of Transistor
F805AT-BC
Inside
COM
Vext
Withstanding
Ic=120mA
（
max
）
Positive
OFF
ON
Output data
0
H
1
L
●
level of output pin
H
L
Positive/negative logic is toggled
voltage 30V (max.)
logic
logic
Negative
logic
Positive
logic
by Login Toggling (28-pin).
Vcc
+12V
External devices must be capable of sinking more than 10mA of Ic.
Leak current in the external device should be less than 100
μ
A.
F805AT-BC
Inside
Ic =
COM
Transistor
Open-collector
Open
OFF
Close
ON
Switch
approx. 6mA
(“ON” when IN is “H”)
Vcc
+12V
digit data
8
4
2
1
0
0
0
0
0
1
0
0
0
1
2
0
0
1
0
3
0
0
1
1
4
0
1
0
0
5
0
1
0
1
6
0
1
1
0
7
0
1
1
1
8
1
0
0
0
9
1
0
0
1
Содержание F805AT-BC
Страница 1: ...F805AT BC BELT SCALE CONTROLLER 15 Feb 2019 Rev 1 03 OPERATION MANUAL...
Страница 15: ...CONTENTS XIV M E M O...
Страница 202: ......
