The unit provides switch selectable baud rates from to It requires no external signal conditioning, multiplexers, or custom cables saving the user both time and money. User-installable scanning modules provide all signal conditioning and amplification.
The scanning modules contain screw terminal sockets for quick and easy input connections. ChartView provides a graphical spreadsheet style user interface that lets you easily configure your hardware, acquisition, and display parameters. ChartView features a no programming approach that enables data collection and display within minutes. ChartView provides a number of data display options including a real-time smooth scrolling trend display, digital meters, analog meters, and bar graph meters.
Data transfer rates up to kb per second are supported. The unit provides switch selectable baud rates from to It requires no external signal conditioning, multiplexers, or custom cables saving the user both time and money. User-installable scanning modules provide all signal conditioning and amplification. The scanning modules contain screw terminal sockets for quick and easy input connections. ChartView provides a graphical spreadsheet style user interface that lets you easily configure your hardware, acquisition, and display parameters.
When is selected as the trigger source, the Trigger On command will generate a trigger. In turn, these alarm events can be used as sources for Trigger or Stop events, or as stimuli for TTL-level signals. To use the alarms, the relevant channels must be part of the channel scan.
Page For example, let us assume a channel has alarm setpoints of and , and a hysteresis of If is exceeded, the channel will remain in the alarm state until the signal falls below Or if is exceeded, the channel will remain in the alarm state until the signal rises above Since the alarms are being updated at the maximum possible frequency, which may be considerably faster than the scan frequency as set by the programmed scan interval, an alarm state may be detected even though no such value can be found in the buffered scan data.
Page Stamp Configuration Stamp Configuration Scan Time Stamping The contents of each scan contains one reading for each of the configured channels. Optionally, time stamping of each scan can be enabled with the Set Scan Time Stamping command. Either absolute or relative time stamping may be specified. Page Example 12f. Page Example 12g. Digital input stamping of each scan can be enabled with the Set Digital Input Stamping command.
However, data output formats differ slightly from data input formats in that Binary formats may be used, and used only for the output of channel data. Page Data Output Terminators In addition to formatting the data readings themselves, you can format the output arrangement between data readings with various data output or query terminators. You can program the unit to power-up in a user-defined state, or if preferred, you can configure the unit to power-up with the default configuration.
During normal operations, the factory defaults may be recalled by issuing the Restore Factory Defaults command. The management of this Trigger Block descriptor is totally user- transparent and, since the Trigger Block descriptor takes up memory, it will have an indirect affect on some user-defined processes.
This field represents the total xxxxxxx number of Trigger Blocks currently contained within the Acquisition Buffer, at the time the command was issued. Page Buffer Read Operations This field will always have the same value as the Position of Stop Event Pointer field unless Post- Stop scans have been configured; that is, if the Post-Stop parameter of the Set Counts stop command has been set to a non-zero value.
The buffer is now empty. The program example demonstrates how the command will read all of the scan data currently residing in the buffer. This situation is called buffer overrun as opposed to a Trigger overrun.
Although this situation prevents new data from being lost and keeps the scan rate consistent, it also overwrites the oldest data. All HLL data will be sent to the controller as dictated by the scan configuration and data format which you have defined. Page Example 13b. Page Example 13c. It also shows the effect of specifying no HLL terminator; Since the HLL Registers are being updated at the maximum possible frequency, which may be considerably faster than the scan frequency as set by the programmed scan interval, an alarm state may be detected even though no such value can be found in the buffered scan data.
Page Theory Of Operation Theory of Operation Each register is part of a hierarchy of status-reporting and mask registers where operations on higher registers will affect the contents of lower registers in the chain. This hierarchical approach provides various levels of status reporting. The lowest levels give general event status information while the higher levels give more details of the particular events. Page Example 13g. The following latency times are simplistic representations of the time between when the Trigger is detected and when the Trigger has been processed.
But if you have access to a PC with Windows 3. X or Windows 95, we strongly suggest using ScanCal. For information on the software-automated method of calibration using ScanCal, see chapter ScanCal. Page To Calibrate the Master Chassis for Offset For offset calibration, locate the calibration jumpers located in one corner of an appropriate scanning card, remove the two calibration jumper caps and short the calibration jumpers using one of those jumper caps, as shown in the figure.
Slide the scanning card into the master chassis. Power up the unit and wait at least one hour before continuing. Page Calibration Of Scanning Cards Calibration of Scanning Cards Scanning Card Calibration Channels The scanning cards described in the following text are applicable to specific scanning units, as shown in the first of the three table. Page The Calibrate Channel Offset command — formatted as — and the Calibrate Channel Gain Hchan command — formatted as — typically refer to calibration being performed on the first Gchan,type channel number of each selected scanning card.
These typical channel values are indicated in the chan second table. Make sure that the channels selected with the calibration command matches the channels connected to the precision thermocouple- calibration source. Note: The following text discusses the traditional manual method of calibration. If not, follow the thermocouple card offset calibration procedure as described in the previous text. Connect a precision voltage source to Channel 1 on the scanning card being calibrated.
Use standard copper hookup wire. If not, follow the thermocouple card offset and gain calibration procedures as described in the previous text. Cold-Junction Offset Calibration Connect accurate thermocouple sources to the following multiple channels on the scanning card being calibrated, where If the default calibration password has not been changed, enter K At the end of each calibration session, disable Calibration Mode with the End Calibration Page This program is in the subdirectory.
Wait a few seconds. Page The following program is in the subdirectory. Page Api Command Reference Introduction Command Syntax Command Characters Commands are identified with the following characters: A single letter through A single letter through followed by a pound sign An at-sign character An asterisk followed by a single letter through In addition, the commands are governed by the following syntax rules. For instance, any option that can range up to 65, always returns five digits, so zero would be returned as.
Page Table 16a. Page Table 16b. Buffer Clear Channel Clear out the channel configuration so that no channels are Configuration configured. Restore Factory Restore unit to factory configuration.
Valid options for are: - Selects the chassis, - Selects the card in card the master unit, - Selects the 1st slave card, - Selects the 2nd slave card, - Selects the 3rd slave card, etc, Selects the 29th slave card, and For each command, the command name, the descriptive name, and the command description are given.
In turn, the command description includes the following format. Command Description Format Type This item refers to the part of the system that the command acts upon. Upon execution of this command, all data currently in the buffer will be deleted and made unavailable to be read. This command should only be used when it is determined that the data in the buffer is no longer needed or may be corrupt.
After this command has been performed, channel readings will be not be updated; therefore, no HLL or Acquisition Buffer updates will be performed until a new configuration is entered via the Configure Channels command. Issuing this command will cause the unit to load the factory default configuration into the working configuration.
Therefore the password can be no longer than 5 nnnnn characters. It is not necessary for normal, everyday operation. Equivalent to a hardware reset. All buffer data and channel configurations are erased.
Valid options for are: - Disable digital filtering for mode thermocouple cards, and - Enable digital filtering for thermocouple cards default. Valid options for A state are: - Disable scan alarm stamping default , and - Enable state scan alarm stamping. Cchans, chans are required arguments, while type type lowsp highsp hyst optional.
These special types are valid only in degrees Celsius. Same as Without temperature Temp. Valid options for are: - Selects the chassis, card - Selects the card in the master unit, - Selects the 1st slave card, Selects the 2nd slave card, - Selects the 3rd slave card, etc, - Selects To use this command the unit must be in Calibration Mode.
Page E? E — Open Thermocouple or Range Error. E — Trigger Overrun. E — Calibration Error. Number of Channels: 24 differential; programmable by channel as specific thermocouple type or a voltage input. Number of Inputs: 24 differential; programmable by channel for any input range Input Connectors: Screw Terminal. Each unit is shipped from the factory with this operating voltage setting marked on its rear panel. When changing the position of the line voltage selection switch S2 or SW2 , make sure the switch is completely positioned to the V or V selection.
This fuse is located next to the internal line-voltage switch labelled S2 or SW2. You may replace the fuse by using the procedures found in the following text. Rack Mount If rack-mount assembly is required, remove the two plastic screws from the pre-drilled holes on each side of the unit. Since the unit can be mounted with the front or rear panel facing the front of the rack fixture, remove only those screws from the set of holes that will be toward the front of the rack.
The front panel LED indicators show any errors if they occur. Possible error conditions and their corresponding LED indicator patterns are shown in the following table. Page 67 As a default, when a to-disk acquisition is armed, ChartView constantly polls the instrument, uploading available scans and storing them to disk.
This polling operation, however, can be disabled so that the instrument will operate in a totally stand-alone mode, buffering scans in its internal buffer indefinitely.
As its internal buffer becomes full, it posts a buffer overrun error and continues to store scans, overwriting the oldest data in the buffer. Page Main Window Toolbar Main Window Toolbar Each item in the toolbar, with exception of Group Select 1 , is represented by an individual button icon and is also accessible from the pull-down menu discussed later. Placing the cursor on the button and clicking the mouse button enables the tool, or opens a corresponding dialog box.
Each Toolbar button has a pop-up label that appears when the mouse is placed over the button. These two buttons do not affect the scan rates of the acquisition device. In the following figure, Chart 1 was highlighted by clicking on it with the mouse cursor. Page 75 Another variation of the Display Configuration Setup box appears when you highlight a channel. In the following figure, Channel 1 of Chart 1, Group 1 was selected, resulting in a new screen image.
From this screen you can edit the channel setup. Perform 4a or 4b as appropriate. With ChartView Plus, option 4a is typically used.
Page 78 Choose channels for the selected chart. With ChartView Plus you can select up to 4 overlapping channels per chart. With the basic ChartView program you are limited to one channel per chart. There are four methods of adding channels. In other words, you can acquire data from channels which you do not monitor. As an alternative to the menus, you can enable several menu items by using Toolbar buttons, previously discussed.
The items which are in common between the pull-down menu and toolbar are described in more detail in the Toolbar section. In this case Chart Setup Wizard activates, allowing you to create a display setup. When ChartView is shutdown, the display configuration is automatically saved in a default configuration file that will load upon the next startup of ChartView.
Page Acquire Menu Acquire Menu Arms the data acquisition device in preparation of receiving a trigger. Acquisition Status Page 84 This area contains two fields for entering command characters, one for row setting Command Characters and one for column setting. This window displays several channels in bar graph format. To activate the display, select the Start button in the meter toolbar. At least one meter must be assigned to an active On channel.
Valid addresses are 0 to The Alarm Status box shows the current state of each Status alarm. After a brief discussion and illustration of each meter type, commonalties to these three types of meters is presented.
Page Analog Meters Configuration Note: …. A pop-up menu will appear allowing you to reconfigure the meter in regard to scale, limits, channel selection, adding peak hold indicators, etc. Refer to the section entitled Meters Configuration Menu for more detail. To activate the display, select the Start button from the toolbar.
You can select to view up to 32 meters at a given time. Page Meters Toolbars Meters Toolbars The toolbars for the three meter types are identical, with exception that the Digital Meters toolbar does not have a Reset Peak Hold button item C in the following figure.
Stop Stops meters. Page Meters Configuration Menu Meters Configuration Menu A meters configuration menu lower left corner of figure will appear when you place the mouse pointer over a meter and click the right-hand mouse button.
The menu allows you to access various dialog boxes for changing parameters for an individual meter, or simultaneously for a group of meters. The steps for configuring a meter are detailed below. The selected channel will replace the one currently seen in the meter. Note that double-clicking the left mouse button in the meter region will also bring up a dialog box which allows you to select a new channel. The channel number cannot be changed from this column. Page Acquisition Setup Dialog Box Note: When using a channel as a reference channel, remember that lower numbered channels are calculated ahead of higher numbered channels, e.
This makes a difference when subtracting a reference channel in regard to the time aspect of the reference value. The following figure represents a screen capture with normal mode selected. Note: If the Keyboard Trigger is selected the use of Pre-trigger is disabled.
External TTL - Use an external signal to start the trigger scan. IOT Stamps to be included in the data if desired. You can use Auto Re-arm as a convenient way to monitor and analyze specific types of trigger events.
The feature allows you to set up your initial chart display configuration using an automated method, or manually create a new display configuration. The following points are important in regard to the Chart Setup Wizard. Manual chart creation allows you to vary the number of assigned channels per chart, as well as vary the number of charts per group. Page Bypassing Automatic Chart Creation It is a simple task to create chart display configurations using the automatic method.
The following steps apply to this feature of Chart Setup Wizard. The New Display Setup dialog box appears. CFG file exists. CFG file by manually selecting another available file.
Page For more-familiar users who prefer the quickest way to start and operate TempView. Open the Run dialog box from the Windows 3. Next, specify a configuration file as a command line parameter for the TempView program. Page Simulated Instrument. Choose Simulated Instrument if you are a first-time user of TempView.
Or choose this option if your acquisition device is not connected. Click OK. The TempView Main Window opens. At this point, startup is complete. Feel free to continue your own navigation and exploration throughout the application to gain familiarity with TempView. Page Review the Acquisition Configuration Checklist. While reading this section, refer to the TempView Main Window figures as often as necessary.
The Main Window items labelled by the lettered and numbered circles are identified in the two respective tables. Because of the graphic design of this application, you should quickly develop a good understanding of the capabilities and operating techniques involved.
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