1799-D16U16VL

1799-D16U16VL

1799-D16U16VL

1799-D16U16VL

GPRS工作在透明数传模式下，一旦GPRS DTU上电后自动拨号上线，通常在通过GPRS方式下PPP连接的过程中就会被分配一个动态《联系人；欧先生》
《座机：0592-5709825》
《传真：0592-5917519》
《24小时热线：18030229053微信同步》
《QQ  ：2479261344》
《QQ邮箱：2479261344@qq》
的IP地址。在一个多终端的应用系统中，每个GPRS DTU因此通过GPRS网络获得一个独一的动态IP地址，如果终端要建立与中心数据服务器的TCP连接，那么必须要求中心数据服务器有一个固定的IP地址，或是中心数据服务器IP地址绑定一个动态域名解析，由此终端的GPRS DTU在上线后，主动向有固定IP地址或一个绑定了IP动态域名解析的域名，发送一个自身设备编号、自身动态IP地址以及端口号的注册信息包，用于保持与中心数据服务器TCP链路保持活跃状态。这种为保持与数据中心服务器的TCP链路保持活跃状态的注册包，我们称之为“心跳包”。每当GPRS重新上电，或是应系统地要求被远程唤醒、或根据GPRS DTU配置设定的发送心跳包间隔时间自动上线，GPRS DTU则应自动的向中心发送心跳包信息，告知数据中心服务器其已保持链路正常。

组成部份:一般在应用GPRS DTU组网时，主要由这样几个部分组成:
1>通过无线联入以太网的用户终端，如PLC、RTU、读卡器等和与之相配的GPRS DTU，通讯前置机（大型系统采用）。

Allen Bradley PLC 5 Relay Cartridge Cat1785-RC/Aed

Fanuc Spindle Amplifier Part# A06B-6076-H001ed

Allen Bradley Servo Motor Cat# 8500-A1D-L1Bed

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GE Field Reverse PC Board Cat# 193X533AC G02ed

Mitsubishi Circuit Protector Model CP30-BA-1P NIB

Allen Bradley Servo Drive 1394-AM03 Ser B NIB

Banner Cable Set P/N: PMCF-510C NNB

GE Contactor Definite Purpose Cat# CR353AB3AB1AB NIB

PILZ Pnoz X8P Relayed

Allen Bradley Size 0 Starter 509-AOA Ser B 220V Coil

Allen Bradley Cables 1771-CP1ed

Allen Bradley Information Processor CPU 1771-DSX4 NNB

WTC/TECHNITRON FAIRCHILD VALVE CONTROL SYSTEM 812346

GE Contactor Parts Cat# CR353XAAA NIB

Proface Monitor Part# GP37W2-BG41-24V 2880052-01ed

Ann Arbor Technologies Monitor Model# INX7P133TFTed

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Reliance Automate Controller Part#45C90ed

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Modicon Memory Module NIB Part# AS-385-904

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Allen Bradley Power Supply Part# 1606-XL240Eed

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Gould Centrifugal Pump 1.5 HP Part# 2BF21534 NIB

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Allen Bradley Potentiometer Cat# 800T-U13ed

Barber Colman Optima AE M/N:41AE-25103-218-1-00ed

Allen Bradley PLC 1778-OACed

Modicon Panelmate ePro Model 7585K-10 PN: 92-02075-00

Allen Bradley Digital Servo Drive 1391-DES15-DI-AQB

Cutler Hamer D720 Monitored Cat# D72WTSP6325DW95

Polymer Systems Chip Granulator Model 68SPLed

ALLEN BRADLEY SMART MOTOR CONTROLLER 150-A360NBD SER. B

Modicon AS-B260 analog output

Modicon PC-L984-785 cpu

Modicon AS-B827-032 input

Modicon AS-B825-016 input

Modicon AS-B281 thermocouple

MODICON AS-B875-102 ANALOG INPUT *NICE

Allen Bradley Camera MUX Module Cat# 2803-CMED

ALLEN BRADLEY 1771-QD INJECTION CONTROL MODULE

Allen - Bradley 1771 - P4S

Allen - Bradley 1771 - HSA

Allen - Bradley 1771 - ID16

WEISS INSTRUMENTS BIMETAL THERMOMETER 3BM25 *NIB

Allen - Bradley 1771 - OVN

Allen - Bradley 1771 - DB/B

Allen - Bradley 1771 - SN

Allen Bradley DC Servo Controller Cat# 1388B-AV40ed
Emerson 3-axis controller PCM-3 Part# 960019-01ed

Square D Limit Switch Class 9007 Type BR61 EC RB1ed

Square D Limit Switch Class 9007 Type B51Ced

Square D Limit Switch Class 9007 Type TUB4ed

Cutler Hammer Limit Switch Part# E50SA6P NO CORDed

Cutler Hammer Limit Switch Part# E50SA6PC6P+ed

Cutler Hammer Limit Switch PN E50SA6PC6P+ W/ Headed

Siemens/T.I. PLC Part# 505-4616ed

Allen Bradley Limit Switch Cat# 802T-A5P Ser Hed

Gould/Denison LOX Switch Model L100WSed

Gould/Denison LOX Switch Model C2B JK1ed

Oilgear DM Pump Part# DM-3511-Med

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Allen Bradley Size 5 120 V Coil Cat# CF236ed

Whedco Drive Model# SMD-1050-R-1ed

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Allen Bradley Memory Module Cat# 8000-MDAed

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Allen Bradley 120 V Coil Cat# CD236Ced

Baldor Power Supply MN TOM 460VAC in 650VDC Outed

Allen BradleyC Board Cat# 8000-GCed

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Allen Bradley Encoder Board Cat# 8000-AGed

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Allen Bradley PCB Cat# 8000-GDed

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Allen Bradley Pressure Switch 836T-T253JX130X15ed

PACIFIC SCIENTIFIC SC320 SERVO AMPLIFIER

Allen Bradley Variable Speed Drive 160-BA03NPS1ed

Modicon PC-0984-680 cpu

Allen Bradley Label Kit Cat#1746-RL40

Modicon AS-D908-110

Allen Bradley Gate Drive Board Cat# 1336-BDB-SP1Ced

Allen Bradley Interface Board Cat# 1336-L6/Bed

Allen Bradley Interface Board Cat# 1336-L6ed

Superir Electric Slo Syn Warp Drive SS2000D3Ied
Allen BradleyC Board Cat# 8000-IOABed

Fanuc Board Part# A16B-1212-0300/07Aed 

Allen Bradley Circuit Board Cat# 8000-KACBed

Allen Bradley Circuit Board Cat# 8000-AGWBed

Fanuc Board Part# A16B-1211-0310/02Aed 

Allen Bradley Circuit Board Cat# 8000-Zed

Allen Bradley ControlLogix Diagnostic Cat# 1756-OB16D/A

Allen Bradley Circuit Board Cat# 8000-KAed

Allen Bradley Circuit Board Cat# 8000-IOBBed

Allen Bradley 25 HP Drive Cat# 1336E-B025-AN-ENed

Allen Bradley Circuit Board Cat# 8000-GDBZed

Siemens T.I. Processor Part# 525-1104ed

Allen Bradley Circuit Board Cat# 8000-AGWZed

Allen Bradley Circuit Board Cat# 8000-IOBBZed

Allen Bradley Circuit Board Cat# 8000-KACed

Allen Bradley Motion Control Cat# 1746-HS Ser. Aed

Allen Bradley Resistive Brake Unit Cat# 2090-XB33-32

Allen Bradley Interface Module Cat# 8000-GDBed 

Honeywell processor board 30731832-002ed

Allen Bradley PC Board Cat# 8000-IOACed 

Honeywell processor board 30731832-001ed

Allen Bradley Control Keyboard Mod. Cat# 8000-VAed 

Honeywell Yamatake CPU board 82408217-001ed

Allen Bradley Micro Instruction Mod. Cat# 8000-GBed 

Allen Bradley Servo Module Cat# 8000-AFed 

Allen Bradley Control Keyboard Int. Cat# 8000-VADed 

ABB Robotics Module Part# SAF-02ed

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Allen Bradley Digital I/O