模拟量采集原理图

3
DE
5
R21 1K D1
GND LED Title Size A4 Date: File: 2012-3-14 D:\Myproject\..\数据采集 V1.0.SchDoc Sheet of Drawn By: 4 Number Revision D
D
GND
A U3 1 2 3 4 5 6 MCU_TX 7 8 9 10 11 ADIn_6 ADIn_7 ADIn_8 RST MCU_RX R1 10k
VCC ADD0 ADD1 ADD2 ADD3 33 32 31 30 29 28 27 26 25 24 23 1 2 3 4
J1 5 9 4 8 3 7 2 6 1
A
44 43 42 41 40 39 38 37 36 35 34
P3.6/WR P3.7/RD XTAL2 XTAL1 GND P4.0 P2.0 P2.1 P2.2 P2.3 P2.4
P1.5 P0.4 P1.6 P0.5 P1.7 P0.6 RST P0.7 P3.0/RxD STC12C5A16AD P4.6 P4.3 P4.1 P3.1/TxD ALE/P4.5 P3.2/INT0 P4.4 P3.3/INT1 P2.7 P3.4 P2.6 P3.5 P2.5
C2 104 3 4 C3 104 5 13 14 7 8
P1.4 TxD2/P1.3 RxD2/P1.2 P1.1 P1.0 P4.2 VCC P0.0 P0.1 P0.2 P0.3
8 7 6 5 SW DIP-4 S3 9 10 11 12 13 14 15 16 SW DIP-8 8 7 6 5 4 3 2 1 J2 2 1 HEADER 2 DB9
通信指示
C C10 C11 J6 2 1 HEADER 2 R22 1K
采集指示
U4 LM2576-S5.0 +24V Vin Gnd ON/OFF 1 GND + C17 100uF Feedback Output 4 2 L1 100uH D4 MBR360
J7 VCCwenku.baidu.com2 1 HEADER 2 + C18 1000uF
C2VsR1in R1out T1out T1in T2out T2in R2in R2out MAX232
IN_1 IN_2 IN_3 IN_4 IN_5 IN_6 IN_7 IN_8
R12 R13 250 R14 250 R15 250 R16 250 R17 250 R18 250 R19 250 250
1
2 VCC
3 U1 1 R2R3R4R5 10K 10K 10K 10K HZ1 S2
汉字
4 VCC C1+ C1C2+ VCC Vs+ GND 16 2 15 6 12 11 10 9 C4 104 C5 104 MCU_TX MCU_RX VCC C6 104
ADIn_5 ADIn_4 ADIn_3 ADIn_2 ADIn_1
VCC R6 R7 R8 10k 10k 10k R9 120 U2 VCC 8 7 6 5 VCC B A GND MAX485 RO RE DE DI 1 2 3 4 MCU_RX DE MCU_TX B
B LED DE XTAL2 XTAL1 ADD0 ADD1 ADD2 ADD3 12 13 14 15 16 17 18 19 20 21 22
C8 33pF C7 33pF
R11 10K
R10 10K GND
GND
Y1 11.0592MHz J5 2 1 HEADER 2 VCC GND VCC
C9 C IN_1 103 IN_2 103 IN_3 +24V J3 1 2 3 4 5 6 7 8 9 10 11 12 CON12 IN_1 IN_2 IN_3 IN_4 R23 560K R24 560K R25 560K R29 560K ADIn_1 ADIn_2 ADIn_3 ADIn_4 J4 1 2 3 4 5 6 7 8 9 10 11 12 CON12 IN_5 IN_6 IN_7 IN_8 R26 560K R27 560K R28 560K R30 560K ADIn_5 IN_5 ADIn_6 IN_6 ADIn_7 IN_7 ADIn_8 IN_8 103 GND 1 2 3 VCC C16 103 R20 1K LED C15 103 VCC LED C14 103 +24V C12 103 IN_4 C13 103 VCC LED D2 D3