PLC可以用于圆周运动或直线运动的控制。目前，大多数的PLC制造商都提供拖动步进电机或伺服电机的单轴或多轴位置控制模块，这一功能可广泛用于各种机械，如金属切削机床、金属成型机床、机器人、电梯等。
过程控制是指对温度、压力、流量、速度等连续变化的模拟量的闭环控制。PLC采用相应的A/D和D/A转换模块及各种各样的控制算法程序来处理模拟量，完成闭环控制。PID调节是一般闭环控制系统中用得较多的一种调节方法。过程控制在冶金、化工、热处理、锅炉控制等场合有非常广泛的应用。现代的大、中型PLC一般都有闭环PID控制模块，这一功能可以用PID子程序来实现，而更多的是使用PID模块来实现。
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【主营产品】
销售世界的PLC 、DCS 系统备件 模块
〖1.〗Allen-Bradley（美国AB PLC）系列产品》
〖2.〗（施耐德140）系列产品》
〖3.〗General electric（通用电气）系列产品》
〖4.〗Foxboro（福克斯波罗）：I/A Series系统，FBM/CP30A/CP30B/CP40A/AP40B/CP60（现场输入/输出模
块）顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数据通信及处理等。
〖5.〗InvensysTriconex:3700A/3805E/3604E/3503E/3504E/3625/3511/,冗余容错控制系统、基于三重模件
FARRIS 26GA42-170 1-1/2X2-1/2 IN 50PSI STEEL FLANGED RELIEF VALVE D562454
FARRIS 26FA13-170 330PSI 6184 LB/HR 1-1/2X2IN STEEL FLANGED RELIEF VALVE D562336
FARRIS 26LC10-170 3X4 IN 130PSI 7849LB/HR IRON RELIEF VALVE D533430
CONSOLIDATED 19226HCO-1-CC RELIEF VALVE 363GPM 3600PSI 1X1.5IN NPT D596080
FARRIS 26FA12-120/SP 250PSI 1-1/2X2 IN IRON FLANGED RELIEF VALVE D560121
FARRIS 47BA10L-121/S3/SP 3/4X1 175PSI STAINLESS STEAM RELIEF VALVE D552541
CONSOLIDATED 1920-00GT-1-CC-TD-34 54PSI 1-1/2 IN FLANGED RELIEF VALVE D569819
CONSOLIDATED 1920GT 54PSI 1-1/2 IN STAINLESS FLANGED RELIEF VALVE D569821
CONSOLIDATED 1920-FT-1-TD-SS-LP-SPEC 54PSI 1-1/2IN FLANGED RELIEF VALVE D569831
CONSOLIDATED 1920-00FT-1-CC-TD-34 STAINLESS 1-1/2IN 54PSI RELIEF VALVE D569828
DRESSER 1910J CONSOLIDATED 3X4 IN 300PSI STEEL RELIEF VALVE D536559
KUNKLE 215V-K01AQE IRON VACUUM RELIEF VALVE 3IN NPT 936CFM 18.5IN-HG D585131
TATE ANDALE 4X5IN BUTTWELD 125PSI 175GPM STEEL RELIEF VALVE D514893
DRESSER 1910JT-2-XLS1 CONSOLIDATED 300PSI 2-1/2 IN 691GPM RELIEF VALVE D543547
CROSBY JLT JOS E 15 A 1-1/2X2-1/2IN 96PSI 144.9GPM RELIEF VALVE D568457
CROSBY JOS E 15 A 1-1/2X2IN 714SCFM 105PSI STEEL RELIEF VALVE D568709
DRESSER 1910EC-1 CONSOLIDATED 1-1/2 X 2 IN 515PSI STEEL RELIEF VALVE D536047
ANDERSON GREENWOOD CROSBY PRV-4 RELIEF VALVE 30PSI 4 IN 1095GPM D569872
CONSOLIDATED 19126HF-2-CC-MS-33-FT-FT-LA 3950PSI RELIEF VALVE 3/4IN NPT D569699
CONSOLIDATED 19126HF 3950PSI RELIEF VALVE 3/4IN NPT D569829
CONSOLIDATED 19126HCF-2-CC-MS-33-LA 3/4IN NPT 3950PSI RELIEF VALVE D569854
CONSOLIDATED 19126HF-2-CC-MS-33-LA 3/4IN NPT 3950PSI RELIEF VALVE D569857
CONSOLIDATED 1920FT-1-CC-TD-34-LP-SPEC 50PSI 1-1/2IN RELIEF VALVE D565002
CONSOLIDATED 1920-00FT-1-CC-TD-34-RF-SS-LP 50PSI 1-1/2IN RELIEF VALVE D564998
CONSOLIDATED 1920FT-1-TD-SS-SPEC 1095LBS/HR 50PSI 1-1/2 IN RELIEF VALVE D565000
J.E. LONERGAN N204 IRON RELIEF VALVE 3825LB/HR 150PSI 3X2-1/2IN NPT D596076
CONSOLIDATED 1905-00HC-1-CC-MS-31-RF-LA 100PSI 1-1/2 IN RELIEF VALVE D567313
CONSOLIDATED DRESSER 1910HC-CC-MS-33-RF-LA 2IN 175PSI RELIEF VALVE D568067
FULFLO VSF8150AR STEEL FLANGED 2IN RELIEF VALVE D599031
APOLLO 10-618-21 2X2-1/2IN NPT BRONZE HOT WATER RELIEF VALVE 105PSI D574370
FARRIS 47BA10L-121/S3/SP 3/4X1 175PSI STAINLESS STEAM RELIEF VALVE D552539
DRESSER 1910-00EC-2-CC-MS-34-RF-GS-HP CONSOLIDATED 1 IN RELIEF VALVE D531341
FARRIS 1875-OL 2-1/2X4IN NPT 150PSI THREADED STEEL RELIEF VALVE D562110
FISHER 98HD 300 IRON FLANGED 400PSI 1IN RELIEF VALVE D591851
FARRIS DOW-26EA22/SP STEEL FLANGED RELIEF VALVE 1IN X 2IN 150PSI D593083
CROSBY 1E2 JLT-JOS-E-35-E 350PSI 2 IN STEEL FLANGED RELIEF VALVE D563754
APOLLO 19KHHK25 2IN NPT BRONZE SAFETY RELIEF VALVE 25PSI 594 SCFM D590935
CONBRACO 10-618-21 BRONZE THREADED RELIEF VALVE 2IN NPT 105PSI D574281
KUNKLE G010JHE01-AM 150PSI 2 IN NPT BRONZE RELIEF VALVE D527594
ANDERSON GREENWOOD 9516102A/SPL 1/2X1IN STAINLESS RELIEF VALVE D550259
CROSBY 10S-35D 2H3 15754 PPH 350PSI FLANGED RELIEF VALVE D560124
ANDERSON GREENWOOD JOS E 15 J 50PSI 1-1/2X2 IN FLANGED RELIEF VALVE D561706
SULLAIR 040276 140PSI 1-1/4 IN 1175CFM NPT THREADED RELIEF VALVE D533997
ANDERSON GREENWOOD 961102 MA RELIEF VALVE 75PSI 1 IN NPT 28GPM D579949
KUNKLE 230-A01-NC 1725PSI 1/4 IN NPT 76CFM THREADED RELIEF VALVE D556925
NEWFARRIS 2856 1-1/2X2-1/2IN NPT 150PSI 141GPM BRONZE RELIEF VALVE D524142
KUNKLE 230-A01-NC 1250PSI 1/4 IN NPT 56CFM THREADED RELIEF VALVE D557464
KUNKLE 230-A01-NC 450PSI 1/4 IN NPT 20CFM THREADED RELIEF VALVE D557462
CASH ACME 19505-0060 F95 2X2-1/2 IN NPT RELIEF VALVE 60PSI D583966
FARRIS 27GA46-F70 1-1/2IN X 2-1/2IN NPT 140PSI RELIEF VALVE D577836
CASH ACME F95 HOT WATER SAFETY RELIEF VALVE 2X2-1/2IN NPT 60PSI D597368
CROSBY VALVE & GAGE JOS46D 500PSI 1-1/2X 2 IN STEEL FLANGED RELIEF VALVE D560263
FARRIS 2741 2450PSI 3/4 IN 4927CFM NPT STEEL THREADED RELIEF VALVE D562711
JAYCO 150 BRONZE RELIEF VALVE 129CFM 15PSI 1-1/2IN NPT D597385
ABB P40 ND16 D 200670 R.4 2X1-1/2 IN IRON RELIEF VALVE D532805
HYDROSEAL 1FRV50F/C0 RELIEF VALVE 150PSI 1IN X 1/2IN NPT 199CFM D579930
IWAKI BV-2S6-15 BACK PRESSURE RELIEF VALVE STAINLESS 0.15MPA 15MM D583487
CONBRACO APOLLO 19MFEA75 1403LB/HR 1X1-1/4 IN NPT 75PSI RELIEF VALVE D584810
ANDERSON GREENWOOD 81PS1S8A12A-4 16GPM RELIEF VALVE 1IN FLANGED D578189
APOLLO RVW61-112100 10-617 100PSI 1-1/2X2 IN NPT BRONZE RELIEF VALVE D574417
CONSOLIDATED 19096MCG-2-CC-MS-33 450PSI 3/4 IN NPT RELIEF VALVE D564505
CONSOLIDATED 19096MCG-2-MS-SS 450PSI 3/4 IN NPT RELIEF VALVE D563556
APOLLO 19KDCA-165 SAFETY RELIEF VALVE 1014LB/HR 165PSI 1/2X3/4IN NPT D598944
KUNKLE 6010-FE BRONZE THREADED RELIEF VALVE 45PSI 1IN NPT D585486
FARRIS 2856-OL 1.5X2.5IN 150PSI BRASS THREADED RELIEF VALVE D563681
FARRIS 1855OL 15PSI 2 IN RELIEF VALVE D562134
CHEMLINE PLASTICS SB10A005EU 150PSI 1/2 IN SOCKET RELIEF VALVE D565681
DRESSER 2478G-1-31-DA CONSOLIDATED 1.5IN 50PSI 99GPM BRONZE RELIEF VALVE D565701
CONSOLIDATED 19226MCF-2-MS-33-LA 300PSI 105GPM 1 IN NPT RELIEF VALVE D563052
MERCER 91-36F11T23N1 7856CFM 1400PSI 1-1/2IN FLANGED RELIEF VALVE D583057
TELEDYNE 2740 STEEL RELIEF VALVE 3/4IN X 1.06 250PSI D594902
APOLLO 19KDCA-165 BRONZE SAFETY RELIEF VALVE 165PSI 1/2IN NPT D596610
MERCER 91-34G11T21N1 5126CFM 645PSI 1-1/2IN FLANGED RELIEF VALVE D596841
CROSBY VALVE & GAGE 48617M6 STEEL 1IN RELIEF VALVE 62GPM 950PSI D599045
ANDERSON GREENWOOD CROSBY 9611011A 3/4X1IN 250PSI 51.3GPM RELIEF VALVE D567322
CONSOLIDATED 19096MCG-2-CC-MS-33-MT-FT 450PSI 3/4IN NPT RELIEF VALVE D569475
CONSOLIDATED 19096MCG-2-CC-MS-33 RELIEF VALVE 450PSI 3/4IN NPT 54GPM D569477
CYRUS SHANK 851-A 1787CFM STEEL 250PSI 1-1/4IN NPT SAFETY RELIEF VALVE D591113
KUNKLE 6186FE01-KM 259CFM BRONZE 30PSI 1IN NPT RELIEF VALVE D592329
CONSOLIDATED 19096MCF-2-CC-MS-33-MT-FT-LA 450PSI 3/4IN RELIEF VALVE D563419
CROSBY 9721131-A 150 FLANGED RELIEF VALVE 40GPM 48PSI 1 X 1-1/2IN D599775
GRIFFCO PRM050P 10-150PSI 50PSI 1/2 IN NPT PRESSURE RELIEF VALVE D578882
DRESSER CONSOLIDATED 2478E-1-31-DA 15PSI 1IN NPT BRONZE RELIEF VALVE D567187
KUNKLE 6182HGV62-KM 135PSI 1-1/2 IN NPT 2267CFM BRONZE RELIEF VALVE D564529
KUNKLE 6182HGV02-KM 137PSI 1-1/2 IN NPT BRONZE RELIEF VALVE D562962
KUNKLE 6182HGV02-KM 137PSI 1-1/2 IN NPT BRONZE THREADED RELIEF VALVE D562969
CROSBY 972182FA N84177 150PSI 1IN NPT 70GPM THREADED RELIEF VALVE D523760
LESER 4411.4404 IRON FLANGED RELIEF VALVE 40X65MM 8BAR D556730
FARRIS 1855 95PSI 1-1/2 IN NPT 1362CFM STEEL THREADED RELIEF VALVE D564371
MERCER 81-17151V13G11 STEEL RELIEF VALVE 1751CFM 500PSI 1IN NPT D586314
WATER WELL PUMP PRESSURE RELIEF VALVE 210-01 TLRV 1IN X 3/4IN NPT D576764
HENRY 560A IRON THREADED RELIEF VALVE 150PSI 1/2X3/4IN FNPT D585369
HENRY 560A IRON THREADED RELIEF VALVE 150PSI 1/2X3/4IN FNPT D585361
KUNKLE 6182FE01 BRONZE THREADED RELIEF VALVE 45PSI 1IN NPT 349SCFM D585544
FARRIS 2745/S4 STAINLESS RELIEF VALVE 1/2 IN NPT 290PSI 22GPM D565279
CONSOLIDATED 1980C2 300PSI 1 IN NPT 145GPM STEEL RELIEF VALVE D563481
HYDROSEAL 1BV-30 STAINLESS RELIEF VALVE 1/2IN NPT 5.5GPM 250PSI D597648
LUKENHEIMER 1226C 110PSI 2 IN NPT 741CFM BRONZE RELIEF VALVE D544347
KUNKLE 337-H01 15PSI 2 IN NPT 903CFM THREADED RELIEF VALVE D551862
ANDERSON GREENWOOD 81PS1S8A12A-4 125PSI 16GPM 1IN FLANGED RELIEF VALVE D577800
WELLMARK W9501-RSB 1200 SAFETY RELIEF VALVE 1IN X 1IN 2421SCFM 900PSI D591035
HANSEN H56 1/2X3/4IN NPT 150PSI STEEL REFRIGERATION RELIEF VALVE D539913
PLAST-O-MATIC 3/4IN NPT PVC THREADED RELIEF VALVE D599614
J.E. LONERGAN LCT-14 STEEL RELIEF VALVE 322CFM 225P
