ABB CMA 121

Modbus RTU通信采用主-从方式，多传送255个字节的数据。主设备与一个或多个从设备进行通信。比较典型的主设备是PLC、PC、DCS(集散控制系统)或者RTU(远程终端单元)。Modbus RTU的从设备一般是现场设备。当Modbus RTU主设备想要从一台从设备得到数据的时候，主设备发送一条包含该从设备站地址、所需要的数据以及一个用于检测错误的CRC校验码。网络上所有其它设备都可以接收到这条信息，但是只有地址被指定的从设备才会作出反应。Modbus网络上的从设备不能发起通信，它们只能在主设备对它说话的时候回答。

GROSCHOPP G16B10012 RIGHT ANGLE WORM GEAR 3/8 IN 10:1 GEAR REDUCER D345791

DODGE 20S20H TIGEAR 2 5/8 IN 1-1/4 IN 1.37HP 20:1 GEAR REDUCER D247325

TEXTRON HU35-3 1750RPM 10:1 GEAR REDUCER D408284

HUB CITY 0220-03533-066 1:2 GEAR REDUCER D433193

HUB CITY 3-WAY BEVEL 1 IN 1 IN 1:1 GEAR REDUCER D345901

SUPERIOR ELECTRIC SE23-005-M000 5:1 PRECISION GEARHEAD REDUCER D506640

DODGE 140C200T018S1A TIGEAR 3.60HP 18:1 GEAR REDUCER D447054

VON RUDEN 15-04 B/C 5/8IN SHAFT STRAIGHT 1:1 GEAR REDUCER D390650

BOSTON GEAR 71010G WORM GEAR 3/8 IN 1/2 IN 0.37HP 10:1 GEAR REDUCER D324972

GROVE GEAR UM1154-3 FLEXALINE 0.62HP 20:1 56C WORM GEAR REDUCER D387241

SEW EURODRIVE KA67AM56 90.04:1 WORM GEAR REDUCER D438034

SEW EURODRIVE RX57AM56 WORM GEAR 3/4 IN 2.64:1 56C GEAR REDUCER D247881

DODGE 180-DM3A-7.6-A1 10HP 7.6:1 180TC GEAR REDUCER D427685

TSUBAKI EMERSON TM13E10B EMERWORM 12MM 15MM 1:10 WORM GEAR REDUCER B370265

DODGE 20S10H TIGEAR 2 2.27HP 10:1 WORM GEAR REDUCER D411713

DODGE 184-DM4F-14.0-A?F5 10HP 14:1 GEAR REDUCER D385469

DODGE 35S50L TIGEAR-2 2.64HP 50:1 WORM GEAR REDUCER D507817

FALK 03UCBN2A7.1A1A ULTRAMITE 2.34HP 7.067:1 56C GEAR REDUCER D384424

SEW EURODRIVE FA47AM56-KS 21.82:1 WORM GEAR REDUCER D438539

BOSTON GEAR F721-40-B5-G-T3 0.81HP 40:1 56C WORM GEAR REDUCER D514456

SEW EURODRIVE SF37A WORM GEAR 20MM 8:1 GEAR REDUCER D319803

HUB CITY 0220-00111-002-?M2 STYLE DE 1.5:1 BEVEL GEAR REDUCER D418207

DODGE 20Q05H56 TIGEAR2 3.47HP 5:1 56C GEAR REDUCER D495883

WINSMITH 935MDSN WORM 5/8IN 1-3/8IN 1.47HP 60:1 56C GEAR REDUCER D250260

SUMITOMO SM-CYCLO CNVJS-4105Y-21 2.6HP 21:1 56C GEAR REDUCER D436545

HUB CITY 0220-60153-181 10:1 WORM GEAR REDUCER D437500

DODGE TXT825T TORQUE-ARM 24.62:1 SHAFT MOUNT GEAR REDUCER D491984

DODGE TXT825T TORQUE-ARM 24.62:1 SHAFT MOUNT GEAR REDUCER D491984

HUB CITY 0220-77664 261 WORM GEAR 5/8IN 1-1/4IN 5:1 GEAR REDUCER D356652

HUB CITY 0221-91642 216 15:1 L 56C WORM GEAR REDUCER D435226

ELECTRA-GEAR 21RLC510G/FX000?1 10:1 21RLC5 GEAR REDUCER D431914

FALK 1090YF1-S ENCLOSED DRIVE 700HP 2.48:1 GEAR REDUCER D497176

REULAND GOFV-7 5HP 7:1 WORM GEAR REDUCER D478940

FALK 5HA102 6:1 GEAR REDUCER D430592

GROVE GEAR TMQ213-3 FLEXALINE 1.05HP 5:1 GEAR REDUCER D239159

HUB CITY 0220-00510-011 11 1/1 AB BEVEL 1:1 GEAR REDUCER D389274

BOSTON GEAR F7215TB7G 3.35HP 5:1 140TC WORM GEAR REDUCER D388207

PARKER PX115-010-S2 MU115-039 10:1 PRECISION GEAR HEAD REDUCER D222465

DODGE 26S15L TIGEAR 2 15:1 WORM GEAR REDUCER D503211

STERLING 175UC020563 1800RPM 1/2 IN 7/8 IN 0.83HP 20:1 GEAR REDUCER D205884

CURTIS 922641 615A BEVEL 2 IN 2 IN 1:1 GEAR REDUCER D315564

ALLING-LANDER 2192-F-3 1.40HP 15:1 WORM GEAR REDUCER D448102

BALDOR F921G-30-B5-J 0.842HP 30:1 GEAR REDUCER D428293

7

WITTENSTEIN ALPHA HG+ 060S-MF1-4-6C1-?1K00 4:1 PLANETARY GEAR REDUCER D434197

DORRIS 107TR20 SHAFT MOUNT 20:1 GEAR REDUCER D238360

SEW EURODRIVE SF50LP 201.8:1 GEAR REDUCER D427787

DORRIS 1209 GEAR REDUCER 8.3HP 9.212:1 D378041

SUMITOMO SM-CYCLO CNH-4095Y 1.45HP 6:1 1750RPM GEAR REDUCER D210706

HUB CITY 0220-00104-002-?M2 STYLE CF 1:1 BEVEL GEAR REDUCER D418195

HAWKER SIDDELEY DGM112-5A DAPTA-GEAR WORM 9MM 15MM 20:1 GEAR REDUCER D285315

HUB CITY 0220-60606-189 1/2IN 3/4IN 25:1 GEAR REDUCER D317739

BOSTON GEAR F721B-25X-B5-G3 1.03HP 25:1 56C WORM GEAR REDUCER D428472

GAM 700599 GEARBOX EPL-W-084-005G-?115-B05-S558 3/4 IN 3/4 IN 5:1 REDUCER B325086

STERLING SPH0302A003381 3HP 4.5:1 GEAR REDUCER D496312

DODGE 23S25L TIGEAR2 1.65HP 25:1 WORM GEAR REDUCER D290362

HUB CITY 0220-76826 MODEL 184 WORM 5/8IN 3/4IN 10:1 56C GEAR REDUCER D248702

DODGE 210-SM3A-1.5-C1 10HP 1.5:1 GEAR REDUCER D432757

MORSE 4M-1-LR-0 BEVEL 3/4 IN 3/4 IN 7.22HP 1:1 GEAR REDUCER D265463

DODGE 184-DM4F-14.0-A?F5 10HP 14:1 GEAR REDUCER D384938

WINSMITH 4MCV 1.76HP 20:1 56C WORM GEAR REDUCER D435044

APEX DYNAMICS PN042 19MM 25MM 5:1 PLANETARY GEARHEAD GEAR REDUCER D426582

DEMAG AF06 OEL:0,5 L 3/4 IN GEAR REDUCER D443071

BOSTON GEAR F71515KB5G3 0.91HP 15:1 GEAR REDUCER D421473

HYTROL 4A 10-1 RH 3/4 IN 1 IN 10:1 WORM GEAR REDUCER D436852

ZAE M040SC 1/2 IN 5/8 IN 7.25:1 WORM GEAR REDUCER B386203

DODGE 20S15H TIGEAR 2 WORM GEAR 5/8 IN 1-1/4 IN 1.72HP 15:1 GEAR REDUCER D249028

US MOTORS 52364 5:1 WORM GEAR GEAR REDUCER D386481