一个企业，应尽量做到PLC的机型统一。主要考虑以下三个方面的问题：
（l）同一机型的PLC，其编程方法相同，有利于技术力量的培训和技术水平的提高。
（2）同一机型的PLC，其模块可互为备用，便于备品备件的采购和管理。
（3）同一机型的PLC，其外围设备通用，资源可共享，易于联网通信，配上位计算机后易于形成一个多级分布式控制系统。
Telenetics Data Modem V.3600 #78839
Telesis Controls Pinstamp Marking System TMP 1700 Scratch & Dent #56738
Telesis Technologies Control Panel TMC400/1700 #20301
Telesis Technologies Controller TMC470 #80424
Temposonics Inc LDT Position Sensing Systems 311000000RCU0100 #38854
Temposonics Inc Linear Position Sensor TTSRBU0720AS4B #72258
Temposonics Inc Linear Transducer GHI1800D602VD #37032
Temposonics Inc Position Sensor 011030070109 #51620
Tescom Regulator 44-1122-24 #79311
Tescom Regulator 44-1125-24 #55303
Test Products Keypad GM-T51105-001B #12475
Texas Instruments Control Module PM550-100 #53524
Texas Instruments Network Interface Module 500-5038 #23926
Texas Instruments Panel MP6000 Operator Interface CVU100 #23892
Texas Instruments Programmer 100-3101 #7650
Texas Instruments Sequence Module 5TI-1013 #54509
Texas Micro Computer Drive 5022445-12 #52309
Textron Gearbox / Motor MHV25B846-W8B #29079
Textron Gearbox / Motor MHV30B306-W8B #29077
Thayer Scales Display Board D-36566 B #23079
The It Protector Surge Suppressor FHP-480NNC #49724
Thermal Care Circuit Board 560A272U01 #71181
Thermal Care PC Board Display Panel 807A013U02 #18112
Thermal Care PC Board Display Panel 807A013U02 #18113
Thermal Care PC Board Display Panel 807A013U02 #18114
Thermal Care PC Board Display Panel 807A013U02 #18115
Thermal Care PC Board Display Panel 807A013U02 #18116
Thermal Care PC Board Display Panel 807A013U02 #18118
Thermal Care PC Board Display Panel 807A013U02 #80316
Thermal Care PC Board Display Panel 807A013U02 #80317
Thermal Care PC Board Display Panel 807A013U02 #80318
Thermal Transfer Heat Exchanger A-614-89551 #74933
Thermal Transfer Heat Exchanger EKS-508-0 #75500
Thermal Transfer Heat Exchanger EKS-712-T #58162
Thermal Transfer Heat Exchanger ENGEL C2032-0023 #80756
Thermal Transfer Heat Exchanger KN-714-T #79260
Thermal Transfer Heat Exchanger R-1003-6.75-6-F-CN #64956
Thermal Transfer Heat Exchanger R-1014-79883 #53287
Thermco Analyzer 7010HeAi100D1 #53558
Thermo Electric Calibrator PA39 Scratch & Dent #51841
Thk Ball Screw BLK 4040E Appears #71224
Thk Ball Screw KX 9I21 Appears #71225
Thk Guide Actuator KR55 #34340
Thk Guide Actuator KR55 #34341
Thk Linear Guide Rail 2HRA35120UU+1000L #74020
Thomas & Betts Russellstoll Receptacle 8404 #38857
Thomson Industries Actuator Slide TG06K659-A00X068 #42449
Thomson Micron Gear Head 34-510880-4982 #21720
Thoreson Mccosh Hopper Loader Receiver MV-1 #31200
T-j Hydraulic Cylinder Cylinder639 #71639
Tjs Flashlamp L-5461 #28750
Toei Electric Circuit Board H01198-2 #66935
Toei Electric Circuit Board H01199-2 #66936
Toei Electric Clamprol-III Injectsetter Timer Operator H01201-2 #66904
Toei Electric Control Board H01200-2 #3320
Toei Electric Control Board H01200-2 #66937
Toei Electric CPU Board H01197-1 #66934
Tokimec 3-Way Servo Controller STC-Y-3V3-12 #70089
Tokimec Check Valve C2-815-JA-J #78619
Tokimec Directional Control Valve DG5V-H8-3C-7-T-P2-T-84-JA429 #68155
Tokimec Proportional Relief Valve EPCG2-10-175-Y-L-11 #78657
Tokimec Proportional Valve Controller EPA-6S3-10 #65720
Tokimec Proportional Valve Controller EPA-6X3-10 #71678
Tokimec Relief Valve TCG50-06-CEV-P2-T-14-LH-S10 #68216
Tokimec Servo Valve ST3-7-B-350-10-12 #71325
Tokimec Valve TRG-10-380-21 #78856
Tokyo Keiki Check Valve URMC-06-11-S1 #68116
Tokyo Keiki Valve TRG-10-380-20-S7 #36168
Tol O Matic Servo Motor MRV33 #77180
Toshiba Back Clamp Gate ISF90VL/Gate648 #80648
Toshiba Circuit Board F0031221 #6746
Toshiba Circuit Board F0307102 #79099
Toshiba Circuit Board F0307102 #80594
Toshiba Circuit Board H01196-3 #6762
Toshiba Circuit Board H01200-3 #6759
Toshiba Circuit Board H0936891 #6727
