A200 传感器到PC的接口

概览

A200 USB串行适配器提供了一种相当简单的连接方式，也可以为相当多的传感器供电。当使用设备配置实用工具(DevConfig)进行配置时，通常都会使用到A200，特别是CS450, CS455, CS650或 CS655这样的SDI-12传感器，都会用到此类接口

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技术说明

A200 是一款USB串行适配器，USB口供电。B型USB接口。串行接口是4针弹簧端子块，可使用16-28 AWG线。端子块提供接地、发送、接收以及12V电源供电。

串行通讯不是真实的RS-232，但是使用0 to 5 Vdc电平的RS-232逻辑信号。接收使用RS-232 tolerant，12V输出的电流量被限制在170mA以内。

产品规格

Dimensions 13.97 x 10.16 x 5.08 cm (5.5 x 4.0 x 2.0 in.)
Weight 90.72 g (0.2 lb)

兼容性

Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.

传感器

Product Compatible Note
CRS451V
CRS456V
CS450-L (retired)
CS451
CS455-L (retired)
CS456
CS650
CS655

下载

A200 Sensor Interface USB Driver v.2.08.28 (1.64 MB) 05-03-2013

A200 Sensor to PC Interface USB Drivers for the Windows operating system.  32 and 64 bit support for Windows 8, Windows 7, Windows Vista and Windows XP.

Note: Drivers should be loaded before plugging the A200 into the computer.

常见问题解答

A200: 3

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  1. Is it necessary to purchase the A200 with a CS650 or a CS655?

    While not necessarily required, an A200 Sensor to PC Interface is useful for connecting a computer directly to the CS650 or CS655 for diagnosis, changing the SDI-12 address, uploading new firmware, and verifying sensor functionality. Typically, only one A200 needs to be purchased unless multiple users with multiple computers need to perform these tasks.

  2. Can the A200 be used to monitor the input and output of pressure and temperature transducers through a computer?

    No. The A200 is only used to configure the CS451 and CS456 pressure transducers.

  3. Can more than 10 CS650 or CS655 sensors be put on the same data logger terminal?

    Yes. Because there are a total of 62 available SDI-12 addresses (0 to 9, a to z, A to Z), it would be possible to communicate on the same universal terminal or control port with 62 sensors if each one had a unique address.

    In the specifications for the CS650 and the CS655, a limit is stated of 10 sensors per universal terminal or control port because the -VS option gives the sensor an SDI-12 address that matches the last digit of its serial number. That limits the available addresses to 0 to 9, for a total of 10 available addresses. To use addresses a to z or A to Z, change the sensor address with an A200 Sensor to PC Interface or with terminal commands as described in the “SDI-12 Sensor Support” appendix of the CS650/CS655 manual.

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