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MultiMux
Multiplexer
USER'S GUIDE
Disclaimer: The following document is provided to assist users with the installation, operation
and training in the use of our products. This document and our products are intended to be used
by technically qualified personnel. Contained herein is information that is proprietary to Canary
Systems and may not be reproduced or copied in any form, nor disclosed to outside parties by
any means whether directly or indirectly, without the written consent of Canary Systems. This
document is subject to change without notice and Canary Systems assumes no responsibility for
errors, omissions or misinterpretation. Furthermore Canary Systems makes no warranty as to the
suitability of this information and/or products for any given application or use.
Copyright1998-2007 Canary Systems, Inc. All Rights Reserved.
Multimux_usersguide.doc Revision D, 07-07
Canary Systems, Inc.
75 Newport Road, Suite 211
New London, NH 03257 USA
Voice: (603) 526-9800
Fax: (603) 526-9004
e-mail:
support@canarysystems.com
web: www.canarysystems.com
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Related Manuals for Canary MultiMux
Summary of Contents for Canary MultiMux
- Page 1 Systems and may not be reproduced or copied in any form, nor disclosed to outside parties by any means whether directly or indirectly, without the written consent of Canary Systems. This document is subject to change without notice and Canary Systems assumes no responsibility for errors, omissions or misinterpretation.
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Page 2: Table Of Contents
Table of Contents Section 1 Introduction 1.1 Overview..................3 1.2 Specifications................. 4 Section 2 MultiMux Operation and Installation 2.1 Operation Details ................5 2.2 Datalogger Connection ..............6 2.3 Instrument Connection ..............7 2.4 MultiLogger Software Configuration ..........7 2.5 CR10/CR10X Program Example ............ 8 2.6 CR1000 Program Example ............ -
Page 3: Section 1 Introduction
1.1 Overview The MultiMux expands the number of instruments that may be read by the CR10 or CR10X in increments of 16, 32 or 48, depending on the model purchased and the type of sensor being read. In addition the MultiMux provides integral lightning protection by utilizing plasma surge arrestors (optional). -
Page 4: Specifications
Section 1 - Introduction 1.2 Specifications General Power requirements: 9-16 VDC (unregulated) Quiescent current: 100 µA Channel activated current (2 or 4-wire): 40 mA Channel activated current (6-wire): 50 mA Control line input impedance: 10 kilohms Control line input levels: TTL or CMOS (5V logic) Transient protection: 18 VDC, 1500W Transzorbs Operating temperature: -40 to +70°... -
Page 5: Section 2 Multimux Operation And Installation
Section 2 – MultiMux Operation and Installation 2.1 Operation Details The MultiMux is controlled by the CR10 or CR10X Controller using 2 digital control signals. The operation of the MultiMux is simple enough so that virtually any device capable of controlling 2 digital TTL/CMOS type signals can be used to control the multiplexer. -
Page 6: Datalogger Connection
Overall Overall If using the MultiSensor Interface with your CR10 or CR10X then connect from the 10-pin connector (using the supplied cable) on the Interface to the screw terminals of the MultiMux in the following order: Color Connection Description... -
Page 7: Instrument Connection
Section 2 – MultiMux Operation and Installation 2.3 Instrument Connection The way instruments are connected to the MultiMux will vary slightly depending on the Mode selection (section 2.1). The following table illustrates typical connection techniques for each of the operating modes. -
Page 8: Cr10/Cr10X Program Example
2.5 CR10/CR10X Program Example The following example illustrates how to write custom programs for the CR10/CR10X to read instruments connected to the MultiMux. The example assumes a 16 Channel Mode MultiMux reading 16 vibrating wire gages and their respective thermistors. -
Page 9: Cr1000 Program Example
Section 2 – MultiMux Operation and Installation 2.6 CR1000 Program Example 'Enable our multiplexer PortSet (1,1) 'Wait 100mSec for multiplexer to power up Delay(0,100,MSEC) 'Cycle through 16 channels For Channel = 1 TO 16 'Set Clock port high to advance mux channel... - Page 10 Section 2 – MultiMux Operation and Installation SerialOut (Com3,"P0400 3500 0600 0040 0300"+CHR(13),"",0,0) 'Short delay Delay (0,200,mSec) 'Clear buffer SerialFlush(Com3) 'Send VA measurement command SerialOut (Com3,"VA"+CHR(13),"",0,0) 'Configure serial input for receiving response SerialIn(sInBuf,Com3,1500,-1,30) 'Check if enough characters received if Len(sInBuf) >= 30 then 'Process response Splitstr(ScratchLoc(),sInBuf,"...
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Page 11: Enclosure Installation
MultiMux terminal board. If the MultiMux was ordered in an enclosure with the lightning protection components then there will be a ground lug on the side of the enclosure as shown in the illustration above. Attach a large gauge copper wire (6-12 AWG) from the lug to a suitable earth ground, either a copper stake driven into the earth or a known electrical system earth ground. -
Page 12: Daisymux Operation
MultiMux DIP Switch Settings On the MultiMux are 3 switches in the DIP switch array, labeled A2, A1 and A0, that control the address of the multiplexer, this address ranges between 0 and 7 in binary values, or between 1 and 8 in terms of the multiplexer number. - Page 13 Section 2 – MultiMux Operation and Installation MultiLogger Software Configuration Multiplexers are configured using the Program | Multiplexers form, as illustrated. To configure DaisyMux operation you would simply specify an Enable port that matches all of the multiplexers in the series. For example, multiplexer #2 would be configured as shown below.
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Page 14: Section 3 Troubleshooting
Section 3 – Troubleshooting 3.1 Troubleshooting Flowchart If you cannot obtain readings using the MultiMux or the readings are unstable then see the troubleshooting flowchart below for help in determining the nature of the problem. Start Does the MultiMux Is 12V and G...
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