115 lines
6.0 KiB
C#
115 lines
6.0 KiB
C#
#region Copyright (c) 2011-2023 Technosoftware GmbH. All rights reserved
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//-----------------------------------------------------------------------------
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// Copyright (c) 2011-2023 Technosoftware GmbH. All rights reserved
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// Web: https://www.technosoftware.com
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//
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// The source code in this file is covered under a dual-license scenario:
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// - Owner of a purchased license: SCLA 1.0
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// - GPL V3: everybody else
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//
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// SCLA license terms accompanied with this source code.
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// See SCLA 1.0: https://technosoftware.com/license/Source_Code_License_Agreement.pdf
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//
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// GNU General Public License as published by the Free Software Foundation;
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// version 3 of the License are accompanied with this source code.
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// See https://technosoftware.com/license/GPLv3License.txt
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//
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// This source code is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE.
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//-----------------------------------------------------------------------------
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#endregion Copyright (c) 2011-2023 Technosoftware GmbH. All rights reserved
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#region Using Directives
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#endregion
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namespace Technosoftware.DaAeHdaClient.Da
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{
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/// <summary>
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/// <para>Defines the possible quality status bits.</para>
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/// <para>These flags represent the quality state for an item's data value. This is
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/// intended to be similar to but slightly simpler than the Field-bus Data Quality
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/// Specification (section 4.4.1 in the H1 Final Specifications). This design makes it
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/// fairly easy for both servers and client applications to determine how much
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/// functionality they want to implement.</para>
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/// </summary>
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public enum TsDaQualityBits
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{
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/// <summary>The Quality of the value is Good.</summary>
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Good = 0x000000C0,
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/// <summary>The value has been Overridden. Typically this means the input has been disconnected and a manually entered value has been 'forced'.</summary>
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GoodLocalOverride = 0x000000D8,
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/// <summary>The value is bad but no specific reason is known.</summary>
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Bad = 0x00000000,
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/// <summary>
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/// There is some server specific problem with the configuration. For example the
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/// item in question has been deleted from the configuration.
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/// </summary>
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BadConfigurationError = 0x00000004,
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/// <summary>
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/// The input is required to be logically connected to something but is not. This
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/// quality may reflect that no value is available at this time, for reasons like the value
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/// may have not been provided by the data source.
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/// </summary>
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BadNotConnected = 0x00000008,
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/// <summary>A device failure has been detected.</summary>
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BadDeviceFailure = 0x0000000c,
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/// <summary>
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/// A sensor failure had been detected (the ’Limits?field can provide additional
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/// diagnostic information in some situations).
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/// </summary>
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BadSensorFailure = 0x00000010,
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/// <summary>
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/// Communications have failed. However, the last known value is available. Note that
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/// the ‘age?of the value may be determined from the time stamp in the item state.
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/// </summary>
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BadLastKnownValue = 0x00000014,
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/// <summary>Communications have failed. There is no last known value is available.</summary>
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BadCommFailure = 0x00000018,
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/// <summary>
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/// The block is off scan or otherwise locked. This quality is also used when the
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/// active state of the item or the subscription containing the item is InActive.
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/// </summary>
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BadOutOfService = 0x0000001C,
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/// <summary>
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/// After Items are added to a subscription, it may take some time for the server to
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/// actually obtain values for these items. In such cases the client might perform a read
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/// (from cache), or establish a ConnectionPoint based subscription and/or execute a
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/// Refresh on such a subscription before the values are available. This sub-status is only
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/// available from OPC DA 3.0 or newer servers.
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/// </summary>
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BadWaitingForInitialData = 0x00000020,
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/// <summary>There is no specific reason why the value is uncertain.</summary>
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Uncertain = 0x00000040,
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/// <summary>
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/// Whatever was writing this value has stopped doing so. The returned value should
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/// be regarded as ‘stale? Note that this differs from a BAD value with sub-status
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/// badLastKnownValue (Last Known Value). That status is associated specifically with a
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/// detectable communications error on a ‘fetched?value. This error is associated with the
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/// failure of some external source to ‘put?something into the value within an acceptable
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/// period of time. Note that the ‘age?of the value can be determined from the time stamp
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/// in the item state.
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/// </summary>
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UncertainLastUsableValue = 0x00000044,
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/// <summary>
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/// Either the value has ‘pegged?at one of the sensor limits (in which case the
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/// limit field should be set to low or high) or the sensor is otherwise known to be out of
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/// calibration via some form of internal diagnostics (in which case the limit field should
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/// be none).
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/// </summary>
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UncertainSensorNotAccurate = 0x00000050,
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/// <summary>
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/// The returned value is outside the limits defined for this parameter. Note that in
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/// this case (per the Field-bus Specification) the ‘Limits?field indicates which limit has
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/// been exceeded but does NOT necessarily imply that the value cannot move farther out of
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/// range.
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/// </summary>
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UncertainEUExceeded = 0x00000054,
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/// <summary>
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/// The value is derived from multiple sources and has less than the required number
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/// of Good sources.
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/// </summary>
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UncertainSubNormal = 0x00000058
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}
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}
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