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<p>Commands typed at the console are in&nbsp;<strong>bold</strong>&nbsp;and&nbsp;follow brackets <strong>&gt;&gt;&gt;</strong>. Bracket pairs <strong>&lt;</strong> and <strong>&gt;</strong> are used to signify the type of input needed. Three dots&nbsp;<strong>...</strong> means multiple inputs are possible. Hitting <strong>[Tab]</strong> on the keyboard will list available commands, devices, and nodes – typing part of a command, device, or node will narrow the list.</p>
<hr>
<p>What are the most basic commands I need to know?</p>
<ul>
<li>
<p><strong>read</strong></p>
<ul>
<li>Reads the value(s) of the device(s)&nbsp;provided.</li>
<li>The <strong>read </strong>command is performed immediately and the results are posted to the <a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="fef342ce-aa59-4b10-be22-ef1bebac67e3" href="/ncnr/neutron-instruments/instrument-control-software-0/nice-console" title="The NICE Console">console</a>.</li>
<li>
<p><strong>&gt;&gt;&gt; read &lt;device name&gt; ...</strong></p>
</li>
<li>EXAMPLE:
<ul>
<li>
<p><strong>&gt;&gt;&gt; read sampleAngleMotor</strong></p>
</li>
</ul>
</li>
</ul>
</li>
<li>
<p><strong>move</strong></p>
<ul>
<li>Changes the value(s) of the device(s) provided.</li>
<li>The <strong>move </strong>command is&nbsp;<a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="0db85483-0529-4c61-a6af-614922dbd4a3" href="/ncnr/nicesoftware/nice-help/queue" title="Queue">queued</a>.</li>
<li>
<p><strong>&gt;&gt;&gt; move &lt;device name&gt; &lt;value&gt; ...</strong></p>
</li>
<li>EXAMPLE:&nbsp;
<ul>
<li>
<p><strong>&gt;&gt;&gt; move sampleAngleMotor 10</strong></p>
</li>
</ul>
</li>
</ul>
</li>
<li>
<p><strong>ct</strong></p>
<ul>
<li>Performs an individual count and writes the result to the console.</li>
<li>The <strong>ct&nbsp;</strong>command is&nbsp;<a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="0db85483-0529-4c61-a6af-614922dbd4a3" href="/ncnr/nicesoftware/nice-help/queue" title="Queue">queued</a>.</li>
<li>
<p><strong>&gt;&gt;&gt; ct &lt;keyword argument&gt; ...</strong></p>
</li>
<li>EXAMPLE:
<ul>
<li>
<p><strong>&gt;&gt;&gt; ct -t 10</strong></p>
</li>
</ul>
</li>
</ul>
</li>
</ul>
<hr>
<p>What is the difference between <strong>display</strong> and <strong>read</strong>?</p>
<blockquote>
<p><strong>display</strong>ing<strong> </strong>a node&nbsp;will show node values based on the last state read from hardware.</p>
<p><strong>read</strong>ing<strong>&nbsp;</strong>a node will query&nbsp;hardware directly to get the latest value. If a node's value is based on other node's values, these other nodes will also be read, recursively.</p>
</blockquote>
<hr>
<p>Where can I find help about using a command or device?</p>
<blockquote>
<p>In the menu, under <strong>Help</strong>--&gt;<strong>Find/Help Commands and Devices</strong>. Type part or all of the name of the device or command into the help window.</p>
</blockquote>
<hr>
<p>What is the difference between the soft, hard, and raw positions?</p>
<ul>
<li><strong>rawPosition</strong> is the raw value as read from the hardware.</li>
<li><strong>hardPosition</strong> is position in a convenient unit.
<ul>
<li><strong>hardPosition</strong> = <strong>rawPosition</strong> × conversion factor</li>
</ul>
</li>
<li><strong>softPosition</strong> is further adjusted by a zero offset and to orient in a convenient direction.
<ul>
<li><strong>softPosition</strong> = parity × (<strong>hardPosition</strong> – zero)</li>
</ul>
</li>
</ul>
<hr>
<p>How can I set a motor’s position?</p>
<ul>
<li><strong>setMotorPosition</strong>
<ul>
<li>Conveniently redefines a motor’s <strong>softPosition</strong> by adjusting the zero.</li>
<li><strong>&gt;&gt;&gt; setMotorPosition &lt;motor name&gt; &lt;softPosition value&gt;</strong></li>
<li>EXAMPLE:
<ul>
<li><strong>&gt;&gt;&gt; setMotorPosition sampleAngleMotor 10</strong></li>
</ul>
</li>
</ul>
</li>
</ul>
<hr>
<p>How can I set a motor’s position without moving it?</p>
<ul>
<li>Moving the <strong>resetRawPosition</strong> node for a motor will change the hardware readout of the motor itself (what NICE calls <strong>rawPosition</strong>).
<ul>
<li><strong>&gt;&gt;&gt; move &lt;motor name&gt;.resetRawPosition &lt;rawPosition value&gt;</strong></li>
<li>EXAMPLE:
<ul>
<li><strong>&gt;&gt;&gt; move sampleAngleMotor.resetRawPosition 10</strong></li>
</ul>
</li>
</ul>
</li>
</ul>
<hr>
<p>How do I restore lost motor positions (for example, after a power outage)?</p>
<blockquote>
<p>Use the&nbsp;<strong>restoreMotorPositions</strong> command.</p>
</blockquote>
<hr>
<p>What does <strong>sleep</strong> do?</p>
<blockquote>
<p>Use <strong>&gt;&gt;&gt;&nbsp;sleep &lt;# of seconds&gt;</strong> to make the system wait a specified duration of time.</p>
</blockquote>
<hr>
<p>How do I change limits?</p>
<ul>
<li>For motors, the softUpperLimit and softLowerLimit nodes define the limits.</li>
<li>For devices, such as temperature controllers, the upperLimit and lowerLimit nodes define the limits.</li>
<li>For controllers with multiple control channels, each channel has separate limits (upperLimit_1 and lowerLimit_1).</li>
<li><strong>&gt;&gt;&gt; move &lt;motor name&gt;.&lt;limitNode&gt; &lt;positional value&gt;</strong></li>
<li>EXAMPLE:
<ul>
<li><strong>&gt;&gt;&gt; move sampleAngleMotor.softLowerLimit 10</strong></li>
<li><strong>&gt;&gt;&gt; move temp.upperLimit_1 150</strong></li>
</ul>
</li>
</ul>
<hr>
<p>How do I change units?</p>
<ul>
<li><strong>&gt;&gt;&gt; setNodeProperties &lt;device name&gt;.&lt;node name&gt; --units &lt;unit type&gt;</strong></li>
<li>EXAMPLE:
<ul>
<li><strong>&gt;&gt;&gt; setNodeProperties sampleAngleMotor.softPosition --units rad</strong></li>
</ul>
</li>
</ul>
<p class="critical">Note:</p>
<p>After units are changed, the latest units will not be reflected in all GUI panels until the client is restarted.&nbsp;The command line and Device Panel always respect the latest unit.</p>
<p>The dimension of a node CANNOT be changed. For example, if a node's unit was degrees you cannot change it to cm.</p>
<hr>
<p>How do I lock (fix) a motor or other device? What is a lock?</p>
<ul>
<li>A lock prevents a node from being moved directly or indirectly via a move command, trajectory, sequence, etc.</li>
<li>Everyone has permission to lock and unlock any node:&nbsp;<strong>&gt;&gt;&gt; setNodeProperties &lt;node&gt; --userLocked true</strong></li>
<li>Only admin can can admin-lock and admin-unlock a node:&nbsp;&nbsp;<strong>&gt;&gt;&gt; setNodeProperties &lt;node&gt; --adminLocked true</strong></li>
</ul>
<p>See: <a href="https://www.nist.gov/ncnr/nicesoftware/nice-help/nodes/locking-nodes">locking&nbsp;</a></p>
<hr>
<p>How do I know if the system is busy (motors moving, counting, etc)?</p>
<blockquote>
<p>You can tell if the system is busy&nbsp;by looking at the top-right of any window in the status bar.</p>
<p>Go to <em>Window &gt; Device Control</em> for real-time display of exactly which devices are busy.&nbsp;</p>
<p>&nbsp;</p>
<figure class=" align-center nist-image--lightbox nist-image" role="group">
<div data-lightbox="https://www.nist.gov/sites/default/files/styles/2800_x_2800_limit/public/images/2018/12/04/busy.png?itok=fI3YY3Q7" data-media-id="471061">
<img alt="BUSY" height="119" loading="lazy" src="/sites/default/files/images/2018/12/04/busy.png" typeof="foaf:Image" width="230">
</div>
<figcaption class="nist-image__caption"></figcaption>
</figure>
</blockquote>
<hr>
<p>How do I add/remove sample environment equipment?</p>
<blockquote>
<p>Go to <em>Window &gt; Configure Devices</em> to add and remove available device configurations.</p>
</blockquote>
<hr>
<p>How do I stop ONLY the current command running in the queue?</p>
<blockquote>
<p>Right-click the desired command in the queue and hit <em>Cancel</em>.</p>
<p>&nbsp;</p>
<figure class=" align-center nist-image--lightbox nist-image" role="group">
<div data-lightbox="https://www.nist.gov/sites/default/files/styles/2800_x_2800_limit/public/images/2018/12/04/cancel.png?itok=SumoWoKq" data-media-id="471031">
<img alt="Cancel a command." height="173" loading="lazy" src="/sites/default/files/images/2018/12/04/cancel.png" typeof="foaf:Image" width="200">
</div>
<figcaption class="nist-image__caption"></figcaption>
</figure>
</blockquote>
<hr>
<p>How do I find my files? How do I copy them from a previous experiment into the current experiment?</p>
<ol>
<li>Go to <em>Experiment &gt; View Experiment Manifest…</em> to see all files organized by experiment. Search bar allows for experiments to be filtered.</li>
<li>Selecting an experiment shows subfolders, including sequences and trajectories.&nbsp; Right click and choose <em>Copy</em> on the files of interest.</li>
<li>The current experiment is always at the top of the list.&nbsp; You can also open a separate file browser by clicking <em>Open Experiment Folder</em>.</li>
<li>Select the folder to be copied into (do not open the folder, right click on it) and select <em>Paste files into /...</em></li>
</ol>
<hr>
<p>What is the difference between a script, a sequence, and a trajectory? How do I know which to use?</p>
<p>How do I customize output filenames in trajectories?</p>
<ul>
<li>Sequences are a text file of NICE commands, executed in order.&nbsp; No loops or if...then statements are allowed, but nesting other sequences is possible and any NICE command can be called from a sequence.&nbsp; The easiest way to build a sequence is to select part of the queue and <em>Copy</em>, then <em>Paste</em> into a text file!&nbsp; An editor with syntax-highlighting is built into NICE.&nbsp; To learn more, go to&nbsp;<a href="https://www.nist.gov/ncnr/nicesoftware/nice-help/sequences">Sequences</a>.</li>
<li>A trajectory is the recipe for a “scan”, where data points are recorded to a data file.&nbsp; It has syntax for supporting loops based on a “range” (e.g. start, step, stop) or a list of positions for a device to move to for each measurement. (Loops can be nested, scanning over e.g. a range of Q-values for a list of temperatures.)&nbsp; To learn more, go to the <a href="https://www.nist.gov/ncnr/nicesoftware/nice-help/trajectory-guide">Trajectory Guide</a>.</li>
<li>A script is an embedded Python program, allowing the program to make decisions based on the results of&nbsp;measurements.&nbsp; It is more difficult to make a script than the other two and is reserved for special circumstances (e.g., align a sample while cooling, but then move on with measurements when the setpoint temperature is reached). To learn more, go to <a href="https://www.nist.gov/ncnr/nicesoftware/nice-help/scripts">Scripts</a>.</li>
</ul>
<hr>
<p>How does temperature control in NICE work? What&nbsp;is hold time versus timeout versus tolerance band, etc?</p>
<blockquote>
<p>To learn more about temperature controllers, go to <a href="https://www.nist.gov/ncnr/sample-environment/sans-equipment/temperature">Temperature Controllers</a> under <a href="https://www.nist.gov/ncnr/sample-environment/equipment">Sample Environment Equipment</a>.</p>
</blockquote>
<hr>
<p>What are the different features of the counter?&nbsp;What is event mode versus non-event mode? Handshaking on versus handshaking off?</p>
<blockquote>
<p>To learn more about counters, go to <a href="https://www.nist.gov/ncnr/nicesoftware/nice-help/counters">Counters</a>.</p>
</blockquote>
<hr>
<p>How, where, and when to save configs, maps, and trays? Sequence files?</p>
<p>What are common file naming schemes?</p>
<blockquote>
<p>To learn more about sequence and trajectory files, go to File Output under <a href="https://www.nist.gov/ncnr/nicesoftware/nice-help/sequences">Sequences</a> and File Output under&nbsp;<a href="https://www.nist.gov/ncnr/nicesoftware/nice-help/trajectory-guide">Trajectory Guide</a>.</p>
<p>To learn more about files used by VSANS, go to&nbsp;File Output&nbsp;under&nbsp;VSANS.</p>
</blockquote>
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