7188XA/B/C & 7521/2/2A/3/4/7 Series Hardware User’ s Manual, Ver. 2.0 Sep/2002, 7Mh-001-20 -----
50
1.5.6 Using D/I/O of the 7188XC & 7521 Series
Ext. GND
Ext. 24V
10
9
8
7
6
11
5
4
12
13
GND
+VS
D2-
D2+
DO3
DO1
DO2
DI1/Init
2
1
Data+
TXD
4
5
6
7
8
3
9
RXD
Data-
RTS
7188XC/7188XCD
DI3
DI2
CTS
N/C
GND
N/C
X1
X2
X3
3
2
1
COM1
Dry contact or TTL/CMOS
or (3.5V to 30V D/I)
Inductive
load or
Conductiv
e load
Current Limit Resistor
Load current <= 125mA
U?
2003A
1
3
14
2
4
5
6
9
16
15
13
12
11
10
7
8
B0
B2
C2
B1
B3
B4
B5
COM
C0
C1
C3
C4
C5
C6
B6
E
DO1
DO2
DO3
GND
+VS
DIO24
DIO29
DIO30
7188XC/7521
12
6
5
4
13
+5V
UA
74HCT08
1
2
3
R2
10K
R1
10K
D/I
TO_CPU
7188XC/7521
series
D/I Block Diagram
D/O Block Diagram
ГК
Атлант
Инжиниринг
–
официальный
представитель
в
РФ
и
СНГ
+7(495)109-02-08 [email protected] www.bbrc.ru