3HAC
控制功用的选择
该选择包括运算功用、控制功用、通讯功用、编程功用、确诊功用和处理速度等特性的选择。
运算功用
简略PLC的运算功用包括逻辑运算、计时和计数功用；一般PLC的运算功用还包括数据移位、比较等运算功用；较杂乱运算功用有代数运算、数据传送等；大型PLC中还有仿照量的PID运算和其他高级运算功用。跟着开放系统的呈现，现在在PLC中都已具有通讯功用，有些产品具有与下位机的通讯，有些产品具有与同位机或上位机的通讯，有些产品还具有与工厂或企业网进行数据通讯的功用。规划选型时应从实践运用的要求启航，合理选用所需的运算功用。大多数运用场合，只需求逻辑运算和计时计数功用，有些运用需求数据传送和比较，当用于仿照量检测和控制时，才运用代数运算，数值变换和PID运算等。要闪现数据时需求译码和编码等运算。
控制功用
控制功用包括PID控制运算、前馈补偿控制运算、比值控制运算等，应根据控制要求断定。PLC首要用于次第逻辑控制，因而，大多数场合常选用单回路或多回路控制器处理仿照量的控制，有时也选用专用的智能输入输出单元完毕所需的控制功用，跋涉PLC的处理速度和节省存储器容量。例如选用PID控制单元、高速计数器、带速度补偿的仿照单元、ASC码变换单元等。
厦门卡库电气有限公司
联系人：严工
手机：
传真：
QQ: Johnson Controls MS-NAE5510-0 MetaSys
Moore 39IDM115ACCAN PLC IDM
Moore 39ODM115ACCAN PLC ODM
M Moore 39SAMCAN PLC SAM
Johnson Controls AS-UNT121-1
Schweitzer SEL-PRTU Protective Relay Terminal Input SELPRTU PRTU00-4XXXXHSX
Schweitzer SEL Distance Relay Fault Locator SEL121 MHNB 125V
Fisher 4194HB Wizard Pressure Control: Differential Pressure Controller 4194H-B
Bently Nevada Temperature Monitor PLC Module 350060 Temp Bentley
Moore 39VIMCCN PLC VIM
Moore 39ACM24BAN PLC ACM R
Moore 39IDM115ACCBN PLC IDM
Honeywell Measurex GXP 054176 02 Video Printer
Honeywell Measurex Termination
Honeywell Measurex PIDP Module PLC
Honeywell ISSC
Vaisala HMP233 D2C0A2AA23A1A3B
Moore PCB PC Board Card
Measurex Termination PIDP II/III PLC Processor Honeywell 053791 00
Measurex Termination RS-232 PLC Processor Honeywell 054004 00 W/AB
Measurex Transition PLC Processor Honeywell Control Processor 054163 00
Measurex Four Channel PLC Processor Honeywell 054157 00 4 CH
Measurex Transition Flat Panel PLC Processor Honeywell 054135 00 Type 2
Measurex QSIB Terminal PLC Processor Honeywell 054147 00 PC Board
Measurex Unitec Comm Term AutoBackup PLC Processor Honeywell 054240 01
Woodward Governer Co Import Control
Siemens Tiastar Furnas 89 Size 1 Reversing Starter 30A Fused 24" MCC MCCB Bucket
Moore PCB PC Board Card 157031
QuickPanel GE Fanuc QPI31200E2P-B
Fisher-Rosemount CL6824X1-A2
Fisher-Rosemount CP6701X1-FA8 Power Converter Card PLC 32B7743X082 PWR 32B7745
Fisher-Rosemount CL6821X1-A6 Analog I/O w 11B7595X092 Chip P1.5.2 12P0663X032
HBM ME 50 PLC ME50 603. 260891 K Hottinger Measuring Amplifier Module
Bently Nevada Power Supply PLC PWA A Bentley
Bently Nevada Terminal Board PWA F PLC PWA 88199 Bentley
Modicon 170DNT11000
Modicon 170-ADM I/O Base TSX Momentum 170ADM54080 3PT
Triconex 2553-6 24V Digital Input PLC DI External Terminator 25536
Triconex 2553-1 24V Digital Input PLC DI External Terminator 25531
Triconex 24V Relay External Terminator PLC PCB