6GK5216-4GS00-2AC2 交换机

6GK5216-4GS00-2AC2 交换机

微型机控制的仅几点、十几点、几十点，如OMRON公司新推出的ZEN机，主机有8点、10点两种，还有扩展，多可扩到34点。再如西门子的logo机，小的也仅能控制10点。还如三菱的alpha机，I/O点数分别有6、10及20等几种规格，而alphaXL的I/O点数分别有14、24两种规格。这些机型，有的还内嵌有简易的编程工具，很便于编程。由于它的价格低廉、使用方便、工作可靠、体积很小…而且，它的可输出电流比其它PLC都大，有的可达8安培。完全可成为新一代相应的继电器控制的替代品，也因此，有的则称其为可编程继电器（PLR）。

小型机控制点可达100多点，以至于更多。如OMRON公司的CPM2A、CP1H、CQM1H，则分别可达到120、320、512点。西门子公司的S7200机可也达一百多点。新推出S7-200 CN为中国版机型。当大配置时，控制点数可达248路（西门子称I/O点为路）。三菱公司的FX2N多点数也可达256点，而FX3UC机可达300多点。

中型机控制点数可达近500点，以至于以千点计。如OMRON公司CJ1H机可超过2000多点。德国西门子公司的S7300机多可达512点（开关量），新推出的318-2也可超过1000点（开关量）。此外，还可另加128路模拟量输入或输出。三菱的Q系列的基本型机，控制点数也可达2048点。

大型机控制点数一般在1000点以上。如OMRON公司的。CS1H机大配置可达5000多点。三菱的Q系列的机，控制点数也可达8192点。

Alerton VLC-1188

ALERTON VAV-SDC3  VAVSDC3

ALERTON VAV-SDC3  VAVSDC3

ALERTON VAV-SDC3  VAVSDC3

Alerton VAV-SD2A Field Controller with Room Sensor Hvac White

Alerton VAV-SD x1, VAV-SDC3 x1, VAV-SDS x2 4 CONTROLLERS

ALERTON VAV-SD  VAVSD

ALERTON VAV-SD  VAVSD

ALERTON VAV-SD (LBL-VAV-SD-D)

ALERTON VAViH-SD, VAV CONTROLLER with ACTUATOR

Alerton VAV-DD V4.02 DZ0000.BD4 BACtalk BT VAV-DDZ-K2-F

ALERTON VAV-DD  VAVDD

ALERTON TX-VAVI  TXVAVI

Alerton TX-VAVi Rev 1 Automation Controller w/ Belimo Actuator LM24-T AL Parts

ALERTON TX-VAV  TXVAV

ALERTON TX-VAV  TXVAV

ALERTON TX-VAV  TXVAV

Alerton TX-VAV Controller Lot of 8

Alerton TX-VAV Controller Lot of 4

Alerton TX-VAV Controller Kit (Honeywell)

Alerton TX-VAV Controller

Alerton TX-VAV Controller

Alerton TX-SA-DC Tux

ALERTON TX-SA-651  TXSA651

ALERTON TX-SA  TXSA

Alerton TX-SA Controllers (LOT of 10)

Alerton TX-PLC-2 Control Module - 

ALERTON TX-MQ-WSHP  TXMQWSHP

ALERTON TX-APLC-K  TXAPLCK

ALERTON TX-APLC2  TXAPLC2

Alerton TX-APLC-2 DDC APLC2 Controller TXAPLC2  Great Working Condition

Alerton TX-APLC-2 DDC APLC2 Controller TXAPLC2 

ALERTON TX-APLC  TXAPLC

ALERTON TX-APLC  TXAPLC

Alerton TX-APLC Ibex APLC Programmable Controller V2.04 DDC TXAPLC 

ALERTON TX-653P  TX653P

Alerton TX-653P Programmable Controller

ALERTON TX-653P  TX653P

ALERTON TX-651-PULSE  TX651PULSE

Alerton TX-651-PULSE Ibex Tux Pulse TX651PULSE

Alerton TX-651-PULSE

ALERTON TX-450  TX450

ALERTON TX-450  TX450

Alerton TX-450 Ibex DDC Controller 4-Inputs 5-Digital Triac Outputs TX450 

ALERTON TX-16160  TX16160

Alerton TX-16160 Industrial Control System

Alerton TX-16160 Ibex Input/Output Controller TX16160

Alerton TX-16160 Bactalk controller  RETAIL $3000.00

ALERTON TX SA 651 QTY OF THREE FOR PARTS

ALERTON TUX-784ST  TUX784ST

ALERTON TUX-450ST  TUX450ST

ALERTON TUX APLC DDC CONTROLLER Central Plant AHU Chilled Water Hot Water

ALERTON TUX 784ST TUX784ST

ALERTON TUX 450ST TUX450ST(S4-T-4B)

ALERTON TS-6000  TS6000

ALERTON TS-3004-OA-10  TS3004OA10

ALERTON TS-3004-MA-10  TS3004MA10

ALERTON TS-2104-PH-10-AA

ALERTON TS-2104-PH-03  TS2104PH03

Alerton TS-2104-MH-10-AA Immersion Temperature Sensor

Alerton TS-2100 YJ-2100 Immersion Temperature Sensor

ALERTON TS-2008-FB-03-AA  TS2008FB03AA

Alerton TS2008FB03AA Industrial Control System

Alerton TS-1050 Bactalk Microtouch Wall Sensor with Wallplate 

Alerton TS 2104 PQ 10 Immersion Temperature Sensor

ALERTON TECHNOLOGIES LANVIEW GC-LVIEW GCLVIEW 24 VAC @ 10 VA RS-232 AC-2670

ALERTON TECHNOLOGIES APLC 2

ALERTON TECHNOLOGIES APLC

Alerton Sensor -- TS-2006-FB-03-AA -- 

ALERTON PROBE-6IN  PROBE6IN

ALERTON PROBE-10IN  PROBE10IN

Alerton Pressure Transmitter PS-22P Series 24 volt

ALERTON PCL-I  PCLI

ALERTON Operator Interface Control MICROVIEW GC-MVIEW Excellent Working

Alerton MS4-TH Temperature And Humidity Sensor MS4TH  in box HVAC Thermostat

Alerton MS4-TH Temperature And Humidity Sensor MS4TH 

ALERTON MS-1020-BT  MS1020BT

ALERTON MS-1020-BT  MS1020BT

ALERTON MS-1010-BT  MS1010BT

ALERTON MS-1010-BT  MS1010BT

ALERTON MS-1010  MS1010

ALERTON MICROTOUCH  MICROTOUCH

Alerton MDM-100 Modem

ALERTON LSI-ARCNET  LSIARCNET

Alerton LSI-16 Modem 33.6K Card for BACtalk Line System Integrator Qty

ALERTON LANVIEW GC-LVIEW 24VAC Excellent Working Condition

ALERTON LAN System Integrator Excellent Working Condition BacTALK

ALERTON IBW-LAN-R1  IBWLANR1

ALERTON IBW-LAN  IBWLAN

Alerton IBW-ETH-ADP Ibex Ethernet Adapter LAN Interface Controller IBWETHADP

Alerton IBW-ETH-ADP Ibex Ethernet Adapter

Alerton IBW-ETH-ADP Ibex Ethernet Adapter

Alerton IBW-ETH-ADP Ethernet Adapter

ALERTON IBEX-3500  IBEX3500

Alerton IBEX/BACnet Modem 100 Communicatio