RETIRED ›
This product is no longer available and has been replaced by: MD485.
MD9 Multidrop Interface
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修理 非対応
キャリブレーション 非対応
フリーサポート 非対応

概要

Effective 1 January 2004, the MD9 Multidrop Interface was generally replaced for new multidrop applications by the MD485 Multidrop Interface. However, the MD9 remains available for customers with existing MD9 networks.

The MD9 Multidrop Interface links a computer to as many as 200 data loggers over a single coaxial cable. Each data logger in the network is connected to an MD9 that has a unique, user-assigned address. Communication between the computer and a specific data logger is routed through the MD9’s address allowing the rest of the network to remain in quiescent mode. Total coaxial cable length can be up to three miles; each MD9 in the network slightly reduces the maximum transmission distance.

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詳細

Effective 1 January 2004, the MD9 Multidrop Interface was generally replaced for new multidrop applications by the MD485 Multidrop Interface. The MD9 remains available for customers who have MD9 networks currently deployed in the field. MD9s and MD485s can NOT be used in the same network.

The MD9 Multidrop Interface links a central computer to up to 200 data loggers on a single coaxial cable. Total cable length can be up to 3 miles. At least two MD9s are required within a network.

仕様

Baud Rates 9600, 1200, 300 (hardware-selectable)
Current Drain
  • 1.2 mA (quiescent)
  • 80.0 mA (active)
Operating Voltage 5 Vdc (from the PS150 or SC532(A) interface)
Carrier Frequency 1.2 MHz
Operating Temperature Range
  • -25° to +50°C (standard)
  • -55° to +85°C (extended)
Dimensions 16.2 x 8.8 x 3.0 cm (6.4 x 3.5 x 1.2 in.) including connectors
Weight 227 g (8 oz)

互換性

注意: 以下は代表的な互換性情報を示しています。互換性のある製品や互換性のない製品をすべて網羅したリストではありません。

Data Loggers

製品 互換性 注意
21X (リタイア) The 21X should have a serial number of 6195 or higher (others require factory modification and an RMA).
CR10 (リタイア)
CR1000 (リタイア) Requires LoggerNet 4.2 or higher.
CR10X (リタイア) The -PB versions of the CR10X requires LoggerNet 4.2 or higher.
CR200X (リタイア)
CR206X (リタイア)
CR211X (リタイア)
CR216X (リタイア)
CR23X (リタイア) The -PB versions of the CR23X requires LoggerNet 4.2 or higher.
CR295X (リタイア)
CR3000 (リタイア) Requires LoggerNet 4.2 or higher.
CR500 (リタイア)
CR5000 (リタイア)
CR510 (リタイア) The -PB versions of the CR510 requires LoggerNet 4.2 or higher.
CR800 (リタイア) Requires LoggerNet 4.2 or higher.
CR850 (リタイア) Requires LoggerNet 4.2 or higher.
CR9000 (リタイア)
CR9000X (リタイア)

ドキュメント


よくある質問

MD9に関するよくある質問の数: 1

  1. Yes, but only if all the other data loggers are PakBus devices, such as the CR800, CR850, and CR1000.

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