ci840
ci840
对于小的系统，如80点以内的系统，一般不需要扩展;当系统较大时，就要扩展。不同公司的产品，对系统总点数及扩展模块数量都有限制，当扩展仍不能满足需要时，可采用网络结构。同时，有些厂家产品的个别指令不支持扩展模块，因此，在进行软件编程时要注意。当采用温度等模拟模块时，各厂家也有一些规定，请参阅相关技术手册。
当用PLC进行网络设计时，其难度比PLC单机控制大得多，首先应选用自己比较熟悉的机型，对其基本指令和功能指令有较深入的了解，并且指令的执行速度和用户程序存储容量也应仔细了解。否则不能适应实时要求，造成系统崩溃。另外对通信接口，通信协议、数据传送速度等也要考虑。
后还要向PLC的厂家寻求网络设计和软件支持及详细技术资料，至于选用几层工作站，依照系统大小而定。
RELIANCE VS DRIVE GP-2000 (2GU41005) 6.5 KVA , 5 HP
GIDDINGS & LEWIS 502-03846-00R4 (PIC900) PROCESSOR
WALCHEM WEBMASTER WMT700-1NNADBN COOLING TOWER CONTROL
AVTRON TRIMMER PROGRAMMER D14660 OLD STOCK *LNC*
OMRON 3G2A5-LK005 LINK UNIT * XLNT CONDITION *
ABB ACH501-005-4-00P2 FREQUENCY AC DRIVE (5 HP)
ABB (ASEA DSPC 153) 2668 180-113/5 GOOD TAKEOUT
MITSUBISHI MELSEC AX80Y80C INPUT/OUTPUT UNIT
ALLEN BRADLEY 209-DSD-010X-DN (ULTRA 3000I DRIVE)
SIEMENS CFD63B100 CIRCUIT BREAKER GOOD TAKEOUT
MAYATECH CORPORATION 464290 BRAND NOT IN BOX
MAYATECH CORPORATION 811077 EDGE OF WEB SENSOR
MOORE APACS 39ACM24BAN (ACM MODULE) GOOD TAKEOUT
SEIKI CNC BOARD B7909204 GOOD TAKEOUT
ALLEN BRADLEY 1336F-BRF100-AA-EN-HAS2-LA7-L4
ALLEN BRADLEY 1326AB-B2E-11 SERVO MOTOR (REFURBISHED)
ABB ACS350-03U-09A8-2 DRIVE (3 HP) BRAND !
Enlarge
LANDMARK GRAPHIC INTERFACE PANEL LMG (115 VOLT)
SPEED SELECTOR 518-100-60 (BRAND ) SPEC # TB
OMRON C200H-NC211 (NC UNIT) OLD STOCK
MOORE APACS 39HFM2CAN (HFM MODULE) GOOD TAKEOUT
NIKKI DENSO ACTUS POWER NPSA-20NN-50E8 SERVO CONTROL
HONEYWELL BATTERY TEST CARD 30752783-001 (XLNT COND)
HONEYWELL TRANSCEIVER 30752766-001 (XLNT COND)
HONEYWELL COMMUNICATIONS LOGIC 30752787-002 (XLNT COND)
GIDDINGS & LEWIS 810-21977-01 CONTROL MODULE W/POWER..
NIKKI DENSO ACTUS POWER NPSA-GMDA-401YZ-A2 GOOD TAKEOUT
RELIANCE ELECTRIC SP500 VS DRIVE 1SU41007 (7.5 HP)
RELIANCE ELECTRIC SP600 AC DRIVE 6SP401-008CTNN (5 HP)
RELIANCE ELECTRIC VS DRIVE 2GC41007 (7.5 HP)
SYMAX 8020SCP401 MODEL 400 PROCESSOR (REFURBISHED)
AUTOTECH CONTROLS SAC-M1051-010 (PRG LIMIT SWITCH)
YASKAWA CACR-SR15SZ1SDY77 SERVOPACK *XLNT* CONDITION
MITSUBISHI MELSEC K0J2-E56DS SEQUENCE CONTROLLER ()
SIEMENS 6AV6 545-0BC15-2AX0 TP170B COLOR TOUCH PANEL
BRAND IN BOX FACTORY SEALED
STEIMEL PUMP TYP-SKL31/0AK-P (BRASS) 1 1/4 FLANGED)
YOKOGAWA VORTEX FLOWMETER YEWFLO DY040 (1 1/2") SST
YASKAWA JANCD-1003E SMALL BOARD JANCD-EW02 * LNC *
GE DRIVE 6KGP43005X9XXXA1 AF-650 GP 5 HP. 460V *XLNT*
GREYLINE INSTRUMENTS OCF-III-CR FLOW MONITOR (BRAND
SIEMENS 6ES5470-4UA11 SIMATIC ANALOG MODULE
SIEMENS 6ES5924-3SA11 CPU MODULE XLNT CONDITION
ABB DSQC 266G 3HAB8801-1/2B ROBOT CONTROL BOARD
FANUC A16B-1212-0270 /05A LASER INTERFACE BOARD *XLNT*
SQUARE D MAL364508041 CIRCUT BREAKER (WITH LUGS) XLNT!
JOY MODEL 33 BASE LOAD CONTROLLER SURPLUS NEVER USE
SIEMENS MLFB6AT1131-8KB00-0AA0 KEYBOARD IN BOX
PARKER DIGIPLAN 8 AXIS MODULAR DC DRIVE SYSTEM TYPE-UR8
ABB 5692-435-LX ENCODER (BRAND )
NSK BALL SCREW W3606-550ZX-C3Z16 (32 INCHES) BRAND
CONTRAVES VARIDYN COMPACT ADB/F440.60M (40 KVA) *XLNT*
FANUC A20B-0008-0032 /03A SPINDLE DRIVE TOP BOARD XLNT
ALLEN BRADLEY 1745-PT1 PROGRAMMER FOR SLC 100 NIB W/
ALLEN BRADLEY 1404-M405A-CNT POWERMONITOR 3000
FANUC A860-0326-T002 2500P ABS PULSE CODER GOOD TAKEOUT
YUSHIN ROBOT TEACH PENDANT PULLED FROM WORKING ROBOT
MITSUBISHI ENCODER RFH1024-22-1M-68 TYPE TSI508 N85
ABB AXEM DC MOTOR F9M4 57540 GOOD USED TAKEOFF!
MITSUBISHI MELSEC F2-40M-UA1 CONTROLLER IN BOX
SIEMENS 6ES5 470-7LB12 ANALOG OUTPUT GOOD TAKEOUT
SIEMENS 6ES5 465-7LA11 ANALOG INPUT GOOD TAKEOUT
OKUMA E4809-045-061-D (BDC BOARD GOOD TAKEOUT)
ALLEN BRADLEY 8600 1880L (CPU BOARD) OSAI OS5001V
ALLEN BRADLEY 8600 1882FL (MEMORY MODULE) OSAI OS5241
ALLEN BRADLEY 8600 2163B (CNC BOARD) OSAI OS5330P
SIEMENS 647101.0400.01 CONTROL CARD GOOD TAKEOUT
INDUSTRIAL SCIENTIFIC ITRANS GAS MONITOR 7814635 ()
FANUC A20B-0005-0700 /04C GOOD USED TAKEOUT
FISCHER & PORTER 10D14 65E17PL21KD11CA FLOWMETER ()
HARDY INSTRUMENTS HI 2151/20WC WAVERSAVER (120 VAC)
ABB (ASEA DSMB 127) 2668 184-584/2 BRAND
ELECTRO CAM PLUS PS-5124-24-M09-C-L LIMIT SWITCH
PRECISION DEVICES INC. PGA-220-C0 AMPLIFIER BRAND
HEIDENHAIN EXE 702 B ENCODER INTERFACE
MITSUBISHI BN624A545H01 (FX232B) GOOD TAKEOUT