Signametrics SMX4032 Operator's Manual

Operator's Manual Model SMX4032 35 Channel PXI Instrumentation Relay Multiplexer Model SMX4030 35 Channel PXI Relay Multiplexer

Signametrics 10 positive edge indicating data is ready. The Trigger output is selected using S4,

11 Signametrics 2.2 Other Specifications Hardware Interface PXI Bus, occupin

3.3 Installing the Scanner Module Warning To avoid shock hazard, install the Scanner only into a personal computer that has its power line connector

13 Signametrics 20 Trig_Com Trigger common 52 Ch22Lo Channel 22 Low 21 Ch2Lo Channel 2 L

Pin Number Label Description Pin NumberLabel Description 65 Ch11Lo Channel 11 Low 72 Ch24Hi Channel 24 High 66 BHi B-bus/Ch33 High 73 Ch25Hi

Figure 3-2. The trigger input and output lines are isolated by an optical isolators. TrigIn - This is the trigger input signal. It requires TTL or CM

Figure 3-2. The Control Panel for the SMX4032. The three main groups include the relays buttons, the configuration selection options, and the main me

17 Signametrics Configuration Option Checks - This section of the main panel allows the selecti

4.1.1 Two Wire Multiplexing In the TwoWire multiplexed configuration, the SMX4000 family first opens all channels, than it connects the Hi and Lo ter

Figure 4-2. To perform 4-Wire resistance measurement with the SMX4032, connect Ch1 and Ch21 to a resistor, maintaining correct polarity. 4.1.3 Six W

Signametrics 2 CAUTION In no event shall Signametrics or its Representatives be li

4.1.5 Four Groups Configuration In the FourGroup configuration, the SMX4030/32 provide four independent multiplexing groups. The groups function as in

Figure 4-4. The trigger input maybe set for polarity and be enabled or disabled. 4.2.2 Trigger Input The trigger input line, TrigIn, maybe set for a

Figure 4-7. Positive edge Triggered AutoScan is a hardware initiated automatic scanning process. 4.2.5 Triggered Scan Operation This operation requi

Figure 4-9. Single Step operation requires a SCANSetupStep() then SCANStep() command. 4.2.7 Scan List Operations The Scan List table resides on boar

Signametrics 24 Channel relays, Configuration relays and Treeing relays are cleaned by this func

SCANGetStepTime() to read it. When enabled during Auto Scan, the trigger output signal will have a period equal to the Step Time, and depending on tri

4.4.1 Triggering the SMX2040 DMMs The SMX2040, SMX2042, and SMX2044 can be triggered to measure selected Scanner channels. The interface requires a s

Figure 4-13. Triggered reading process and timing of SMX4032 Scanner and SMX2044 DMMs. Unlike the previous example, DMMSetBuffTrigRead() is not time c

Closed channel relay Closed Bus relay Closed Configuration relay DMM Low terminal (Bhi & Dlo) DMM High terminal (Ahi & Clo) Ch1 A-to-A NONE

29 Signametrics 5.0 SMX4032 Scanner Family Windows Interface The windows release supports Windo

3 Signametrics TABLE OF CONTENTS 1.0 INTRODUCTION...

Signametrics 30 SMX4032.exe Visual Basic Scanner control panel executable Msvcrt.dll System fil

31 Signametrics of the executables will run independently, making calls to the respective DLL.

Signametrics 32 Global.bas module file contents: Option Explicit 'function declarations De

33 Signametrics End Sub Private Sub Option6W_Click() ShowFault SCANSetConfig(0, SixWire) E

Signametrics 34 Description Initiate AutoScan operation. #include “SMX4032.H” int SCANAutoSca

35 Signametrics Remarks This function Cleans all relays. The test connector must be present to

Signametrics 36 Remarks Delay of dTime seconds. dTime must be a positive double floating point n

37 Signametrics SCANGetActuationTime H/W access Command  Polled Command  Description Return

Signametrics 38 Value Meaning SCAN_OKAY Operation was successful. Negative number Error code Exa

39 Signametrics Positive Value Version Negative Value Error code Example firmware_ver = SCANGe

Signametrics 4 5.0 SMX4032 SCANNER FAMILY WINDOWS INTERFACE ...

Signametrics 40 Positive Value Scanner ID code Negative Value Error code Example int id = SCANG

41 Signametrics Remarks This function returns an integer value corresponding to the iAddress e

Signametrics 42 Description Get the currently set Auto Scan step time. #include “SMX4032.H”

43 Signametrics #include “SMX4032.H” int SCANGetType(int iScan) Remarks This function retur

Signametrics 44 Description Initialize the scanner. #include "SMX4032.H" int SCANIn

45 Signametrics Description Open all channel relays. #include “SMX4032.H” int SCANOpenAllCha

Signametrics 46 Negative Value Error code Example int status = SCANOpenPCI(0); SCANReady H/W

47 Signametrics required for accessing the selected channel. This command is applicable in the

Signametrics 48 Value Meaning SCAN_OKAY Operation successfully completed. Negative Value Error

49 Signametrics multiple channel relays can be closed. With iState set to OPEN, open the iChan

1.0 Introduction Congratulations! You have purchased a PXI/CompactPCI switching instrument with analog and systems performance that rivals the best,

Signametrics 50 SCAN_OKAY Operation successfully completed. Negative Value Error code Example

51 Signametrics Parameter Type/Description iScan int Identifies the Scanner. Scanners are num

Signametrics 52 Description Set the Scanner Trigger output signal level. #include “SMX4032.H”

53 Signametrics SCANStep H/W access Command  Polled Command  Description Step to the next c

Signametrics 54 Parameter Type/Description iScan int Identifies the Scanner being addressed. R

55 Signametrics Description Test a channel relay for integrity. #include “SMX4032.H” int SC

Signametrics 56 lpdBounce Doulbe * Pointer where the bounce time value is to be saved. iChan int

57 Signametrics Example SCANTestConfigRelay(0, BtoA); // test the BtoA relay SCANTrigAutoSca

Signametrics 58 iState int Indicates the enabled state of the trigger input line. May be set t

59 Signametrics Description Set Scanner for trigger driven step scanning. #include “SMX4032.H

1.3 Description The SMX4030/32 are 35 channel models that can be arranged in up to four groups of 8:1 differential channels. The SMX4032 is a high re

Signametrics 60 5.7 Error Codes Operation of the DMM may be impaired; therefore it should be ab

61 Signametrics 6.0 Accessories Several accessories are available for the SM4000 relay Scanners

7 Signametrics 1.4 Configuration Relays In addition to the channel switching relays, the SMX403

Signametrics 8 2.0 Specifications and Feature Table Function SMX4032 Instrumentation SMX4030

Figure 2-1. Trigger input equivalent circuit. 2.1.2 External Hardware Trigger Output Output Characteristics  Output Circuit Open collector of a NP