空模块LM201

采用485总线结构常见的几种通讯故障有下面几种？

1、通讯不上，无反应。

2、可以上传数据，但不可以下载数据。

3、通讯时系统提示受到干扰，或者不通讯时通讯指示灯也不停地闪烁。

4、有时能通讯上，有时通讯不上，有的指令可以通，有的指令不可以通。

Commercial Shearing D232-2-1 Hydraulic pump D23221 

Bosch EBX 200-T servo motor drive controller EBX200T

Eastman 830C1-78 Control Display PCA Board NNB

Fisher DH6011X1-GA2 MPU ROM PCA NNB 39A0724X042 !

Cyberex PCB circuit module board 41-05-772100 Rev.I NIB

Cyberex PCB circuit module board 41-05-801701 NIB

Cyberex PCB module card circuit 41-05-801701 NIB

Cyberex Reference Oscillator 60hZ, 1Ph 41-05-801701 NIB

MTS MPA-05-460-370 Brushless Servo Amplifier 1/3 Phase

Cyberex Reference Oscillator 60hZ, 1Ph 41-01-521103 NIB

Guardian Electric IR-MER-24-D 21-Pt. Reset Stepper NIB

Honeywell/Amiens 46182731-001 Ref 46182731001 printer b

Ward Leonard DC DP Contactor 5DP9-5021-11  NNB

Allen Bradley 194R- NJ400P3 Disconnect Ref 194R-NJ400P3

OMRON BI-COLOR NT20M-DN131 INTERACTIVE DISPLAY

Cutler-Hammer IQ Data METERING DEVICE LED DISPLAY NIB

Allen Bradley 1336 Power supply board 20HP 151136

Foxboro 2AO-L2C-R Style B Relay Output Module  NIB

Square D XR-IAI/XRP-IAI Accesories Panel 60A 240V 60hz

ALLEN BRADLEY 1784-KTCX CONTROLNET INTERFACE CARD

GE 263-0028-03 E821 Audio PCA PLC Rev. E 263002803 Ref

GE 265-0023-011 Accessory Control PCA PLC E00 Ref

GE 263-0023-010 Tone Control Audio PCA PCB Ref

Schlumberger C152L GPM Flowmeter HVAC 1" Ref w/unions

Cyberex SCR Snubber board PCB 42-20-260385 NIB 260371

Northern Computer AD1853N Access Control PCA PCB

ABB 6636361A1 MCS I/O Distribution PCB PCA  NNB

Yaskawa Servopack Servo motor drive CPCR-FR02RB7-R4M

OMRON C500-NC113 SINGLE AXIS STEPPER-C/CVSERIES

Fisher CL6011X1-B1 IAC MPU Provox PCA NNB 30B4113X01R


Denso TP3 410100-0560 Robotics Teaching Pendant NNB

Fisher DH6001X1-FA3 MPU ROM PCA NNB 39A3150X022 !

REXROTH INDRAMAT DKC01.1-040 SERVO DRIVE CONTROL NNB

Shibaura TPA-203 Roi-Bot Teaching Pendant Robotics HIM

FISHER CONTROLS TL101 SINGLE LOOP CONTROLLER NNB

Allen Bradley 1336S-BRF50-AN-EN Ref 1336SBRF50ANEN

Xycom PCB 1805 Board 81987-001-D 81625DA  NNB

Cutler-Hammer Thermal Magnetic Circuit Breaker ELJW3200

Williamson 8100S-F-22 700-1200 deg F Laser/ Measurement

Square D 8994-SYS80 Control Module 3844-002 8994SYS80

GE E1510 263-0023-004 Link Audio Rev. A PCA PCB Ref

Pacific Brushless Servo Motor R23HENA-R1-NS-NV-01 NIB

H-Systems Harmonic Drive Component Set SF25G0CR51F NIB

C-H A10FN0 Size 4 Motor starter Ref