M1: MATH FunctionComputation typesTypes:Four arithmetical operations, SQR (square root), ABS (absolutevalue), LOG (common logarithm), LN (natural logarithm), EXP(exponent), statistical computation*, logical computation (AND,OR, NOT, and XOR), relational computation, exponentiation,previously-measured value reference, hold**, and reset*Statistical computationCLOG: Computation process of simultaneouslymeasured values within a group (total, maximum,minimum, average, and maximum -minimum)TLOG: Computation process of a specific channel overtime axis (total, maximum, minimum, average,and maximum - minimum)Statistical computation interval:Set by the event/action function (effective when/M1 option is selected)**Hold Temporary suspending of computation and temporary hold ofthe computed resultDuring statistical computation, resume the computation from thehold point after the hold is released. (effective when /M1 option isselected)Number of channels for computing (Number of channels that canbe allocated for computational purposes.):Stand-alone type: 30ch maximumExpandable type: 60ch maximumComputation interval:Every measurement interval (except when the computationbecomes too difficult to be processed every measured interval, inwhich case an alarm is generated)Significant digits during computation:±10 38Significant digits of the computed result:–9999999 to +99999999 (The decimal point can be set to none orhave 1 to 4 digits on the right of the decimal point)Computation start/stop:Can be controlled by personal computer, time specified, remotecontrol signal (DI/DO module), and alarm statusTemporary hold of the computed result:Can be controlled by remote control signal (DI/DO module), andalarm statusOther functions included in the math function:Remote RJCInput type: Thermocouple (TC)Accuracy: (Twice the measurement accuracy of thestandard thermocouple input) + (temperaturedifference between the terminal of the remoteterminal section and thermocouple section formeasuring the remote terminal temperature)Thermocouple burnout: not selectable/D2: F degree Display/L1: Summer/Winter Time Display/C5: External Mass Storage Interface Function(SCSI *1 )By installing the external mass storage interface (SCSI) option tothe DC100, you can connect MO/Zip/Jaz/PD disk drives.MO/Zip/Jaz/PD disk drive connected to the DC100 on powerup isautomatically detected and can be usedas external medium.The external mass storage interface (SCSI) option is a communicationinterface for saving files created in the DC100 internal RAM(such as measurement data files, report files, and periodic files)onto the MO/Zip/Jaz/PD disk. It is also used for loading files fromthe disks.In addition, MO/Zip/Jaz/PD disks allow transferring of filesbetween the DC100 and the PC without physically connecting thetwo using communication cables.*1: SCSI (Small Computer System Interface)It is an interface standard for connecting the computer to peripheraldevices such as hard disks and scanners.It is a communication standard (ANSI X3.131-1986) adopted byANSI (American National Standards Institute) in July 1986.The external mass storage interface (SCSI) option for the DC100can connect only to MO/Zip/Jaz/PD disk drives meeting thefollowing specifications.Supported modelsData Collector DC100(DC100-1, DC100-2 with /C5 option)Connection with MO/ZIP disk drive• Automatically detect MO/Zip/Jaz/PD disk drive connected onpower up.• Manual detection after power up also possible.SCSI controllerWD33C93A made by Western DigitalSCSI pathSCSI (conforms to ANSI X3.131-1986)Terminating resistanceBuilt-in passive terminator (Terminator ON fixed)Connector on the DC100D-sub half-pitch connector 50-pins femaleConnector pin assignmentUnbalanced transfer type (Single-ended path)SCSI cableCable that is 3 m or less between the DC100 and the SCSI device.MediaMO/Zip/Jaz/PDMaximum connectionsUp to 7 devices excluding the DC100DC100 ID numberFixed to 7ID numbers for MO/Zip/Jaz/PD disk drivesAny ID numberNOTEIf connecting multiple devices, each device must be assigned with aunique ID number.10GS 04M01J01-11E
Contmction between SCSI devices• Follow the manuals that come with the MO/Zip/Jaz/PD drives inconnecting the devices.• DC100 can access each of the multiple SCSI devices byspecifying the ID number.• Attach a terminator to the device on the end of the SCSI chain.Certain devices have built-in terminators that can be turned onwith a switch.• SCAM *2 is not supported.*2: SCAM (SCSI Configured AutoMatically) is a standard createdby Adaptec and Microsoft to automatically assign unique SCSIIDs.Not all SCSI devices support this standard.Magneto Optical Disk standard• 128 MB, 230 MB, 540 MB, 640 MB magneto optical disks arestandardized *3 media. Media from different manufactures arecompatible as long as they conform to the standard.• See the instruction manual for the MO drive to see what types ofmedia are supported.Data processing with the personal computer• Data file can be displayed, analyzed, or converted (Excel/Lotus/ASCII) with the DAQ 32 software that is provided with theDC100.• Advanced data analysis on multiple channels can be performedsimultaneously with the DAQ 32 Plus software.NOTEFor information on the software specification, see “DARWIN SoftwarePackage Specification (GS 04M01F02-11E).”Storage Spaceof Media (Bytes)128 M230 M540 M640 MCompatible StandardISO10090ECMA-201 ISO15041ISO15041Rotation Control MethodCAVZCAVZCAVZCAVBytes per sector5125125122048Track Pitch (µ)1.61.391.11.1*3: Other Magneto Optical disk formats are HS standard (Medium is90 mm in diameter and holds 650 MB) which uses magneticmodulation method and PD format (Medium is 120 mm indiameter and holds 650 MB) which is a phase change type.Devices that have testedProduct NameMO driveZip driveJaz drivePD driveModelSCSI-2 Compatible modeliomega Zip 100, Zip 250iomega Jaz 1GBPanasonic PD/CD-ROMManufacturerFujitsuIomega Co.,Ltd.Iomega Co.,Ltd.PanasonicNOTESome of the MO/Zip/Jaz/PD disk drives need terminators. Followthe instruction manual for the particular disk drive.Features of the media (MO/Zip/Jaz/PD disk)• The DC100 recognizes up to 272 files for each MO/Zip/Jaz/PDdisk.• Set-up data files can be directly written to the MO/Zip/Jaz/PDdisk through the SCSI.• Measurement data file, report computation files, and periodic filesare stored once in the DC100 internal RAM, then copied to theMO/Zip/Jaz/PD disk through the SCSI.Cannot copy between SCSI devices.• Deleting data files.• Formatting the MO/Zip/Jaz/PD disk.Directory structure of the external SCSI media• All data are saved/loaded to subdirectory “DIR 0 .”• Subdirectory “DIR 0” is automatically created if it does not existon the external medium.• No limit on the number of files on the external medium.GS 04M01J01-11E11