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plc通信主要采用串行异步通信,其常用的串行通信接口标准有RS-232RS-422A和RS-485等。RS-232和RS-422,与上位机通讯时,就是PLC与计算机通信,如果传输距离小于16米可以直接用串口RS-232,如果大于16米就要用PS-232/RS-422转换器将其转换成RS-422然后再与计算机相连。RS-232接口数据传输速率低,传输距离有限,抗干扰能力差,RS-422采用全双工的通信方式,采用差分传输方式,抗共模干扰能力增强。






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22N704TD00
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OS05A20-H73A
LK-G5001PV
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74LVC2245AD
IFX30081LDV33
CY-122A-P-Z
PI3EQX6701CZDEX
BSM300GB60DLC
MC34931EK
MS-CY1-2
MS-AJP
DM1810-916MB
THC63LVDF84B
TDA18250HN/C1
SR-700HA.SR-700


3-1003702-7
EYG-R0508ZLMJ
XC6201P332PR-G9
ICE40LP384-SG32
GAL16V8D-25LJ
EH-430
CU4S0401-1950-00
K6R4008V1C-TC12
KV-NC32T
N-48
=PS-201C
BU12TD2WNVX-TL
FS-N18N
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IRF250
SFMG2S0D001
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PK110F-160
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SR-710 N-R2
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PM-Y64
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PZ-M12P
BL-1301HA
MFECA0030ESD
KV-NC16ET
S5210G
FS-N11P N11N N18N N18P
CU4S0506AC-751-00
FS-V21RP
74C16834ADGG
XG-75017500
FU-L51Z
SL-T16C1
LCMXO2-4000HC-6MG132C
XC6123C548ER-G
SR-600
170M2619
KV-C16XTD
MKDET1110P
FS-V11G
PI6C10807HE
PI3B3125Q
89BSD-006BA-A
TEMD5120X01
4525-SS5A100GP
88E8071-B1-NNC1C000-P123
CD74HC574M96
PDTA143ET
FZ800RF4C
Tektroinx
PI3B3257Q
BD9E302EFJ-E2
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PI3HDX1204-BZHEX
PI6C2510-133LX
THC63LVDM83A
BH31M0AWHFV-TR
PI5USB30213XEAEX
TDF19972AEL
MDME502G1H
ST3232CTR
MKL26Z128VFT4
TDA8196
K4T51163QN-BCE7
BU4333F-TR
74HC14DB
PI3HDMI412FTZHEX
SL-T11R
HR-101
GD32C103V6
SR-751
S70101EPAXUMA1
7BB-35-3L0
74HCU04PW-Q100J
74AHC1G125GV-Q100H
88E8055-B0-NNC1C000
HD6417751RBP240V
LX2-110.LX2-70LX2-60
XB5606AJ/XB8989AF/XB5306A/XB7608AJ/DK124
KV-40DR KV—40DT
MSME302S1D
MFECA0100EAM
EYG-R0410ZLSJ
MSMA402P1H
88AB101-NXR2-P123
HTA20005S
BL-781
EXT-15
MDDDT5540N
LC-120-BL0035-A-P-J
74AXP1G00GSH
MMICT4083-00-908
PS391CSE
170M8545
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BL-701 BL-700
CZ-V21A
MingDa(明达微)
BL-1301
PI90SD1636CFGE
SJM300BCA01
XG-8700
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FR9886SPGTR
ICL5102
RE50L1D472
S1D5514C09-AOBO
3SK186FI-TL
HEF4894-Q100
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CA003216080025GE.
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