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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). The MultiMux
may be purchased installed in a NEMA 4X fiberglass/polyester enclosure or as a board assembly for
users supplying their own packaging.

The complete list of features and ordering options is detailed on the MultiMux Ordering Guide available
from our web site or by contacting Canary Systems directly.

The MultiMux consists of two printed circuit boards (PCB

’

s), one for making the instrument connections

(the terminal board) and the second, installed on the back of the terminal board (the switch board), for
switching the instrument leads. The MultiMux utilizes advanced high-reliability components such as
terminal blocks from Phoenix Contact (

http://www.phoenixcontact.com

), relays from Aromat

corporation (

http://www.aromat.com

) and a microcontroller from Microchip Devices

(

http://www.microchip.com

) to help insure years of reliable and trouble-free operation. The use of low

contact resistance relays means almost universal instrument support, a high degree of lightning
protection and virtually infinite channel isolation.

Warranty is applicable for 2 years from date of shipment. Warranty does not cover failure by misuse or by
nature including lightning, flood, or other catastrophe. Should you encounter problems with your MultiMux
see the troubleshooting flowchart in section 3.

A top view and description of the MultiMux terminal board is shown below.

1H2

1L2

2H3

2L3

3H3

3L3

4H3

4L3

SHIELD

12V

16/32/48 CHANNEL TERMINAL BOARD

1H1

1L1

2H1

2L1

3H1

3L1

4H1

4L1

SHIELD

CLK

1H3

1L3

2H2

2L2

SHIELD

3H2

3L2

4H2

4L2

SHIELD

5H2

5L2

6H3

6L3

7H3

7L3

8H3

8L3

SHIELD

5H1

5L1

6H1

6L1

7H1

7L1

8H1

8L1

SHIELD

5H3

5L3

6H2

6L2

SHIELD

7H2

7L2

8H2

8L2

SHIELD

13H2

13L2

12H3

12L3

11H3

11L3

9H3

9L3

SHIELD

13H1

13L1

12H1

12L1

10H1

10L1

9H1

9L1

SHIELD

13H3

13L3

12H2

12L2

SHIELD

10H2

11L2

9H2

9L2

SHIELD

16H2

16L2

15H3

15L3

14H3

14L3

13H3

13L3

SHIELD

16H1

16L1

15H1

15L1

14H1

14L1

13H1

13L1

SHIELD

16H3

16L3

15H2

15L2

SHIELD

14H2

14L2

13H2

13L2

SHIELD

TB1

TB2

TB3

TB4

TB5

TB6

TB7

TB8

TB9

TB10

TB11

TB12

TB13

TB14

TB15

TB16

Canary Systems, Inc.

SA37

SA38

SA39

SG13

SA40

SA41

SA42

SG14

SA43

SA44

SA45

SG15

SA46

SA47

SA48

SG16

SA1

SA2

SA3

SG1

SA4

SA5

SA6

SG2

SA7

SA8

SA9

SG3

SA10

SA11

SA12

SG4

SA13

SA14

SA15

SG5

SA16

SA17

SA18

SG6

SA19

SA20

SA21

SG7

SA22

SA23

SA24

SG8

SA25

SA26

SA27

SG9

SA28

SA29

SA30

SG10

SA31

SA32

SA33

SG11

SA34

SA35

SA36

SG12

Datalogger Connection

TB17

Manual Switch Header Sockets (optional)

Interboard Connectors

Screw Terminal Blocks (16 places)

Surge Arre stors (op tional)

Datalogger Connection

Earth Ground Connection (2 place s)

Mounting Hole (4 places)

8.813"

223.8mm

10.750"

273.05mm

Содержание MultiMux

Страница 1: ...eans 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 Copyright 1998 2007 Canary Systems Inc All Ri...

Страница 2: ... 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 9 2 7 CR1000 Program Example with VWDSP 9 2 8 Enclosure Installation 11 2 9 Lightning Protection 11 2 10 DaisyMux Operation 12 Section 3 Troubleshooting 3 1 Troubleshooting Flowchart 14 ...

Страница 3: ... for 2 years from date of shipment Warranty does not cover failure by misuse or by nature including lightning flood or other catastrophe Should you encounter problems with your MultiMux see the troubleshooting flowchart in section 3 A top view and description of the MultiMux terminal board is shown below 1H2 1L2 2H3 2L3 3H3 3L3 4H3 4L3 SHIELD EN 12V G J3 J1 J2 J4 16 32 48 CHANNEL TERMINAL BOARD 1H...

Страница 4: ...oil resistance 1 028 ohms Maximum switching voltage 125 VAC 110 VDC Maximum switching power 30 W resistive load Maximum switching current 1 A Operate time 2 milliseconds Release time 1 milliseconds Initial contact bounce 1 millisecond Surge withstand between open contacts 1 500 V Switching life mechanical 100 000 000 operations Lightning Protection Components optional Tripolar Plasma Surge Arresto...

Страница 5: ...ote Timing values shown are minimum values 50ms 250ns 250ns In the case of the 32 or 48 channel modes the maximum number of pulses to advance through all the channels would be 32 and 48 respectively The channel switching mode is selected by configuring the DIP switch mounted on the MultiMux relay board mounted under the terminal board The table shown below describes the 4 possible configurations D...

Страница 6: ...llow 2L High side of CH2 5 Green AG Gage shield 6 Blue 12V Power 7 Purple G Ground 8 Grey EN Enable 9 White CLK Clock 10 Black Cable Shields Cable Shield The MultiSensor Interface does not support the 6 wire switching capability of the MultiMux so the 3H and 3L terminals are not connected TB ML MUX TB Connection Description Bendix Mux Cable 5 pair Mux Cable 6 pair 1H 1H High side of CH1 A White Br...

Страница 7: ...MultiSensor Interface see Appendix D of the MultiLogger Software User s Guide for sensor wiring diagrams If the CR10 or CR10X is equipped with the MultiSensor Interface then see the MultiSensor Interface User s Guide for additional sensor wiring diagrams 2 4 MultiLogger Software Configuration To configure MultiLogger to use the MultiMux select CAN MultiMux as your multiplexer Model on the Configur...

Страница 8: ...t 1 High 3 Excitation with Delay P22 50ms delay after enabling the MultiMux 1 1 Ex Channel 2 0 Delay W Ex units 0 01 sec 3 5 Delay After Ex units 0 01 sec 4 0 mV Excitation 4 Beginning of Loop P87 1 0 Delay 2 16 Loop Count Total number of instruments 5 Do P86 Advance the channel 1 78 Pulse Port 8 6 Vibrating Wire SE P28 Read the Vibrating Wire Gage 1 1 Reps 2 1 SE Channel 3 1 Excite all reps w Exc...

Страница 9: ...measurement loop Next Disable our multiplexer PortSet 1 0 2 7 CR1000 Program Example with VWDSP See our Application Note 11 for more information on using the VWDSP Interface This can be found in the Support area of our website at www canarysystems com The VWDSP can also originate clocking pulses using it s own port the example below uses C8 of the control module to provide clocking pulses Enable o...

Страница 10: ...SP Short delay Delay 0 50 mSec Clear Buffer SerialFlush Com3 Send TA measurement command SerialOut Com3 TA CHR 13 0 0 Receive response SerialIn sInBuf Com3 100 1 18 Check if enough characters received if Len sInBuf 16 then Process response Splitstr ScratchLoc sInBuf 2 0 Convert to degrees C VWDSP FW version 8 using Steinhart hart ScratchLoc 3 ScratchLoc 1 65536 ScratchLoc 2 100 ScratchLoc 4 Scratc...

Страница 11: ...ghtning Protection If the MultiMux is equipped with the optional lightning protection components then care must be exercised in the installation to maximize their effectiveness Specifically an effective earth ground must be attached to the 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 ...

Страница 12: ...iMux 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 These determine which section of channels will be activated i e the MultiMux configured with address 0 with be active for channels 1 16 the MultiMux...

Страница 13: ...nable setting is the same for the 2 or more multiplexers it will not lower the Enable line which would effectively reset the multiplexers between the multiplexers NOTE This functionality was supported beginning with version 2 1 1 of the MultiLogger Software Prior to version 2 1 1 you were required to use the special ANE DaisyMux Model as shown to support the DaisyMux configuration If your version ...

Страница 14: ...able and Clock lines connected to the control ports Attach Enable Clock lines No Do the software settings for the Enable and Clock lines match the connections Match software and digital I O connections Yes No Yes Yes Do the software settings match the sensor type and wiring Is there a source of electrical noise nearby Yes No Connect the leads Adjust the wiring for the type of sensor used Adjust th...

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