简要说明：

　　产品型号：BENTLY 3300/20-01-01-02-00-00

产品功能：BENTLY 3300/20-01-01-02-00-00

产品参数：BENTLY 3300/20-01-01-02-00-00

软件完成
modbus rtu格局通信协议是以主从办法进行数据传输的，在传输的过程中主站是自动方，即主站发送数据恳求报文到从站，从站回来呼应报文。modbus体系间的数据交换是经过功用码(function code)来操控的，有些功用码是对位操作的，通讯的用户数据是以位(bit)为单位的：
fc01 读输出位的状况
fc02 读输入位的状况
fc05 强行单一输出位
fc15 强行多个输出位
有些功用码是对16位寄存器操作的，通讯的用户数据是以字(word)为单位的：
fc03 读输出寄存器
fc04 读输入寄存器
fc06 写单一输出寄存器
fc16 写多个输出寄存器[1]
cp341与3500/92的通讯，cp341做主站，3500/92做从站，主站、从站都需要设置波特率、中止位、校验位。这儿设置波特率为9600bit/s，一位中止位,无奇偶校验。cp341 modbus协议通讯是经过simatic step7编程软件，并利用库函数fb8(p-snd-rk)和fb7(p-rcv-rk)功用块进行发送和读取数据操作的。它们均经过组态数据库的办法进行发送源信息和接纳意图数据的信息，恳求信息时，从源数据库读取相应字段后发送，接纳信息是依据发送的内容进行对应字段数据的存储。报文格局存放在db42中前6个字节中，选用句子表言语编写程序

以下产品，低价供应：ently Nevada 2155/00-10-03-00-01-11-11-

11-11-11-00 Transient Data Interface (TD

BENTLY NEVADA 3500 RACK WITH POWER SUPPLY

AND MODULES 20/50/32/42M(3)/93

BENTLY NEVADA 3500 RACK W/ POWER SUPPLY

MODULES 15/20/50/32/42M(4)/93 & I/Os

BENTLY NEVADA 3500 RACK W/ POWER SUPPLY

MODULES 15/20/50/32/42M(4)/93 & I/Os

BENTLY NEVADA 2155/00-06-03-00-01-11-11-

11-00-00-00 USPP 2155000603000111

BENTLY NEVADA TRANSIENT DATA MGR 2100/00

-01-07-01-00

BENTLY NEVADA 3300/16-02-01-03-00-00-02

WITH 81564-01 NEW 330016020103000002

BENTLY NEVADA 3300/35-11-01-01-00-00 NSPP

3300351101010000

BENTLY NEVADA 72201-02-02-05-01-01-01

USPP 7220102020501010

BENTLY NEVADA TDX NET TRANSIENT DATA

INTERFACE # 2155100-05-03-05-01-11-11-10

BENTLY NEVADA 3300/35-11-01-01-00-00 USPP

3300351101010000

BENTLY NEVADA 3500/50 3500

BENTLY NEVADA 3500/50 Tachometer Module

BENTLY NEVADA 3300/16-04-01-01-00-00-00

3300/16040101000000

BENTLY NEVADA 3300-50-01-01-01-00 USPP

33005001010100

Bently Nevada 103928-02 Sampler Card

TDXnet PLC Transient Data Interface 5160

Bently Nevada 134652-01 Sampler TDXnet

PLC Transient Data Interface 137305-01

NEW BENTLY NEVADA 3500 PROCESS MONITOR

3500/62

BENTLY NEVADA 3300/50-02-01-00-00 USPP

33005002010000

BENTLY NEVADA 3300/50-01-01-01-02 USPP

33005001010102

BENTLY NEVADA 3300-16-02-01-01-01-02-00

USPP 3300160201010102

BENTLY NEVADA 3500/64M NSPP 350064M

BENTLY NEVADA 3300/55-03-04-06-06-00-00-

05-00 USPP 3300550304060600

BENTLY NEVADA 3300-16-02-01-01-01-01-00

USPP 3300160201010101

NEW BENTLY NEVADA 18745-03 5 & 8 MM

PROXIMITY SENSOR 7200 D327409

NEW BENTLY NEVADA 18745-03 5MM PROXIMITY

SENSOR 7200 D327399

Bently Nevada Romis 7200 Chassis

NEW BENTLY NEVADA 3300/16-04-01-01-00-00

-00 DUAL VIBRATION XY/GAP MONITOR

NEW BENTLY NEVADA 3300/20-02-01-03-00-00

DUAL THRUST MONITOR

BENTLY NEVADA 3300 RACK WITH POWER SUPPLY

AND MODULES -- 12 (1) /03 (1) /16 (4)

Bently Nevada Dual Accelerometer Monitor

Model 3300/25-03-06-01-00-02-00 New

Bently Nevada Dual Vibration Monitor

Model 3300/15-02-01-00-00-00-00- NIB

Rebuilt Bently Nevada Turbine Vibration

Monitoring System 3300 3300/06-0.3

BENTLY NEVADA 2201/02-02 USPP 22010202

BENTLY NEVADA 3500/93 System Display

Factory Sealed

Bently Nevada Romis 7200 Chassis

BENTLY NEVADA 3500/42M NSFP 350042M

BENTLY NEVADA 3500/42 NSFP 350042

BENTLY NEVADA 3300/55-03-04-05-05-00-00-

07-00 USPP 3300550304050501

BENTLY NEVADA 3300/20-01-01-02-00-00 USPP

3300200101020000

Bently Nevada 7200 Chassis with 4

Vibration Monitors and 2 Dual Probe

Monitors

Bently Nevada - 3300/95 - Gas Generator

Filter Module / Vibration Monitor

Bently Nevada - 3300/95 - Power Turbine

Filter Module / Vibration Monitor

Bently Nevada - 3300/25 - Dual

Accelerometer Monitor

(5731) Bently Nevada Transducer Velocity

Control Velomitor 330750-80

Bently Nevada 3300/50-03-01-00-00

Tachometer

Bently Nevada 3300/46-XX-02-01-00

Differential Expansion Module

BENTLY NEVADA 3500/42M NSPP 350042M

Bently Nevada 3500/93 Display Interface

Module PWA 135799-01 C

Bently Nevada 3500/62 Process Variable

Monitor

Bently Nevada 3500/40M Proximitor Monitor

140734-01 & I/O Connection Module

BENTLY NEVADA 3300/16-03-02-00-00-00-00

NSPP 3300160302000000

Bently Nevada 3500/42M Proximitor/

Seismic Monitor NOV

Bently Nevada 105401-02 Sampler Card

TDXnet PLC Transient Data Interface 3407

2201/02-02 Bently Nevada for Allen

Bradley 1771

NEW BENTLY NEVADA 3300-16-01-02-01-00-00

-01 DUAL VIBRATION XY GAP MONITOR