5 External Input/Output Function
43
No. 99MBC109B
Pin
number
I/O
Tolerance judgment output mode BCD output mode
Name Functions Name Functions
23 O B_ANG INPUT B analog output
24 - AGND GND for analog
25 I SET1 Input the set value with SET in advance, then assign with MODE, DISP.
26 I SET2
27 I SET3
28 I DISP Specify BANK for display: In combination with SET
29 I MODE Peak switchover: In combination with SET
30 I BCDCK Specify BCD output: In combination with SET
31 I EXTTRG USB trigger
32 I A_HOLD INPUT A HOLD (Display A: HOLD)
During input, the decimal point will blink.
33 I B_HOLD INPUT B HOLD (Display B: HOLD)
During input, the decimal point will blink.
34 I HOLD HOLD/Error cancel input
During input, the UNIT Indicator will blink.
35 I PA INPUT A: Display A Preset/Peak clear (in Peak, HOLD mode)
36 I PB INPUT B: Display B Preset/Peak clear (in Peak, HOLD mode)
Tips
• The functions with "INPUT B" written in function eld are available for 2-axis models only.
• "I/O" refers to the rst letters of "Input/Output" respectively. Refer to the input circuit for
"I", and the output circuit for "O".
Input/Output circuit
Output circuit Input circuit
Transistor is on when the output is "L"
(open collector).
Input is valid when the input voltage
is "L".
COM
0.01 µF
Counter
Output withstand voltage: Max. 24 V
output current: Max. 10 mA
output saturation voltage: Max. 0.7 V
Surge-current-
absorbing diode
60 V 100 mA or more
TD62583
equivalent
External equipment
Reference circuit
Output
+5 V
5 kΩ
5 kΩ
0.01 µF
External equipment
Reference circuit
Counter
Input current: Max. 1 mA
Input voltage: H = 4 to 24 V
L = Max. 1 V
Use open-collector
output or relay output.
When using relays, incorporate a surge-current-absorbing diode or a protective circuit.
If no protection is incorporated, the IC in the Counter may be damaged.
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