Forms

  • sylius_add_to_cart
    • cartItem
    • _token

sylius_add_to_cart

Form type:
"Sylius\Bundle\CoreBundle\Form\Type\Order\AddToCartType"

Errors

This form has no errors.

Default Data

Property Value
Model Format same as normalized format
Normalized Format
Sylius\Bundle\OrderBundle\Controller\AddToCartCommand {#115607
  -cart: App\Entity\Order\Order {#15319 …}
  -cartItem: App\Entity\Order\OrderItem {#115595
    #id: null
    #order: null
    #quantity: 1
    #unitPrice: 0
    #originalUnitPrice: 0
    #total: 0
    #immutable: false
    #units: Doctrine\Common\Collections\ArrayCollection {#115619 …}
    #unitsTotal: 0
    #adjustments: Doctrine\Common\Collections\ArrayCollection {#115620 …}
    #adjustmentsTotal: 0
    #version: 1
    #variant: App\Entity\Product\ProductVariant {#8927
      #id: 3108
      #code: "IEEE00001914PDF"
      #product: App\Entity\Product\Product {#7520
        #id: 9240
        #code: "IEEE00001914"
        #attributes: Doctrine\ORM\PersistentCollection {#8207 …}
        #variants: Doctrine\ORM\PersistentCollection {#8289 …}
        #options: Doctrine\ORM\PersistentCollection {#8628
          #collection: Doctrine\Common\Collections\ArrayCollection {#8618 …}
          #initialized: true
          -snapshot: [ …4]
          -owner: App\Entity\Product\Product {#7520}
          -association: [ …21]
          -em: ContainerHAOxQ06\EntityManagerGhostEbeb667 {#775 …}
          -backRefFieldName: null
          -typeClass: Symfony\Component\VarDumper\Caster\CutStub {#224896 …}
          -isDirty: false
        }
        #associations: Doctrine\ORM\PersistentCollection {#8585 …}
        #createdAt: DateTime @1751038088 {#7536
          date: 2025-06-27 17:28:08.0 Europe/Paris (+02:00)
        }
        #updatedAt: DateTime @1754606304 {#7535
          date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
        }
        #enabled: true
        #translations: Doctrine\ORM\PersistentCollection {#8627 …}
        #translationsCache: [
          "en_US" => App\Entity\Product\ProductTranslation {#8612
            #locale: "en_US"
            #translatable: App\Entity\Product\Product {#7520}
            #id: 31969
            #name: "IEEE 1249:1996"
            #slug: "ieee-1249-1996-ieee00001914-240892"
            #description: """
              New IEEE Standard - Superseded.<br />\n
              The application, design concepts, and implementation of computer-based control systems for hydroelectric power plant automation is addressed. Functional capabilities, performance requirements, interface requirements, hardware considerations, and operator training are discussed. Recommendations for system testing and acceptance are provided, and case studies of actual computer-based control applications are presented.<br />\n
              \t\t\t\t<br />\n
              This guide addresses the application, design concepts, and implementation of computer-based control systems for hydroelectric plant automation. It addresses functional capabilities, performance requirements, interface requirements, hardware considerations, and operator training. It includes recommendations for system testing and acceptance. Finally, case studies of actual computer-based automatic control applications are presented. The automation of control and data logging functions has relieved the plant operator of these tasks, allowing the operator more time to concentrate on other duties. In many cases, the plant’s operating costs can be significantly reduced by automation (primarily via staff reduction) while still maintaining a high level of unit control reliability. Automatic control systems for hydroelectric units based on electromechanical relay logic have been in general use for a number of years and, in fact, were considered standard practice for the industry. Within the last decade, microprocessor-based controllers have become available that are suitable for operation in a power plant environment. These computer-based systems have been applied for data logging, alarm monitoring, and unit and plant control. Advantages of computer-based control include use of graphical user interfaces, the incorporation of sequence of events and trending into the control system, the incorporation of artiÞcial intelligence and expert system capabilities, and reduced plant life cycle cost.<br />\n
              This guide is directed to the practicing engineer who has some familiarity with computer-based control systems and who is designing or implementing hydroelectric unit or plant control systems, either in a new project or as a retrofit to an existing one. This guide assumes that the control system logic has already been defined; thereefore, its development is not covered. For information on control sequence logic, the reader is directed to the IEEE guides for control of hydroelectric power plants listed in Clause 2. of this guide.
              """
            #metaKeywords: null
            #metaDescription: null
            #shortDescription: "IEEE Guide for Computer-Based Control for Hydroelectric Power Plant Automation"
            -notes: "Superseded"
          }
        ]
        #currentLocale: "en_US"
        #currentTranslation: null
        #fallbackLocale: "en_US"
        #variantSelectionMethod: "match"
        #productTaxons: Doctrine\ORM\PersistentCollection {#7943 …}
        #channels: Doctrine\ORM\PersistentCollection {#8104 …}
        #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7519 …}
        #reviews: Doctrine\ORM\PersistentCollection {#8066 …}
        #averageRating: 0.0
        #images: Doctrine\ORM\PersistentCollection {#8118 …}
        -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7681 …}
        -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7746 …}
        -apiLastModifiedAt: DateTime @1754517600 {#7530
          date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
        }
        -lastUpdatedAt: DateTime @1578006000 {#7496
          date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
        }
        -author: ""
        -publishedAt: DateTime @862869600 {#7531
          date: 1997-05-06 00:00:00.0 Europe/Paris (+02:00)
        }
        -releasedAt: null
        -confirmedAt: null
        -canceledAt: null
        -edition: null
        -coreDocument: "1249"
        -bookCollection: ""
        -pageCount: 72
        -documents: Doctrine\ORM\PersistentCollection {#7786 …}
        -favorites: Doctrine\ORM\PersistentCollection {#7928 …}
      }
      #optionValues: Doctrine\ORM\PersistentCollection {#9319 …}
      #position: 0
      #createdAt: DateTime @1751041150 {#8953
        date: 2025-06-27 18:19:10.0 Europe/Paris (+02:00)
      }
      #updatedAt: DateTime @1755611970 {#8952
        date: 2025-08-19 15:59:30.0 Europe/Paris (+02:00)
      }
      #enabled: true
      #translations: Doctrine\ORM\PersistentCollection {#9240 …}
      #translationsCache: [
        "en_US" => App\Entity\Product\ProductVariantTranslation {#95316
          #locale: "en_US"
          #translatable: App\Entity\Product\ProductVariant {#8927}
          #id: 3126
          #name: null
          -shortDescription: null
          -description: null
          -notes: null
          -shippingInformation: "Instant download"
        }
      ]
      #currentLocale: "en_US"
      #currentTranslation: null
      #fallbackLocale: "en_US"
      #version: 9
      #onHold: 0
      #onHand: 0
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      #weight: 0.0
      #width: null
      #height: null
      #depth: null
      #taxCategory: Proxies\__CG__\App\Entity\Taxation\TaxCategory {#8957 …}
      #shippingCategory: null
      #channelPricings: Doctrine\ORM\PersistentCollection {#9320 …}
      #shippingRequired: true
      #images: Doctrine\ORM\PersistentCollection {#9248 …}
      -apiLastModifiedAt: DateTime @1753740000 {#8947
        date: 2025-07-29 00:00:00.0 Europe/Paris (+02:00)
      }
      -publishedAt: null
      -isbn: "978-0-7381-1119-3"
      -ean: "9780738111193"
      -numberOfUsers: 1
      -physicalProduct: false
      -downloadableImmediately: true
      -downloadable: true
      -drmViewerUrl: "https://online-viewer.normadoc.com/NmEC3U"
      -sellable: true
      -documents: Doctrine\ORM\PersistentCollection {#8958 …}
      -drmTokens: Doctrine\ORM\PersistentCollection {#9177 …}
      -enabledForSubscribers: true
      -currentAreaContext: null
    }
    #productName: null
    #variantName: null
  }
}
View Format same as normalized format

Submitted Data

This form was not submitted.

Passed Options

Option Passed Value Resolved Value
data
Sylius\Bundle\OrderBundle\Controller\AddToCartCommand {#115607
  -cart: App\Entity\Order\Order {#15319 …}
  -cartItem: App\Entity\Order\OrderItem {#115595
    #id: null
    #order: null
    #quantity: 1
    #unitPrice: 0
    #originalUnitPrice: 0
    #total: 0
    #immutable: false
    #units: Doctrine\Common\Collections\ArrayCollection {#115619 …}
    #unitsTotal: 0
    #adjustments: Doctrine\Common\Collections\ArrayCollection {#115620 …}
    #adjustmentsTotal: 0
    #version: 1
    #variant: App\Entity\Product\ProductVariant {#8927
      #id: 3108
      #code: "IEEE00001914PDF"
      #product: App\Entity\Product\Product {#7520
        #id: 9240
        #code: "IEEE00001914"
        #attributes: Doctrine\ORM\PersistentCollection {#8207 …}
        #variants: Doctrine\ORM\PersistentCollection {#8289 …}
        #options: Doctrine\ORM\PersistentCollection {#8628
          #collection: Doctrine\Common\Collections\ArrayCollection {#8618 …}
          #initialized: true
          -snapshot: [ …4]
          -owner: App\Entity\Product\Product {#7520}
          -association: [ …21]
          -em: ContainerHAOxQ06\EntityManagerGhostEbeb667 {#775 …}
          -backRefFieldName: null
          -typeClass: Symfony\Component\VarDumper\Caster\CutStub {#224896 …}
          -isDirty: false
        }
        #associations: Doctrine\ORM\PersistentCollection {#8585 …}
        #createdAt: DateTime @1751038088 {#7536
          date: 2025-06-27 17:28:08.0 Europe/Paris (+02:00)
        }
        #updatedAt: DateTime @1754606304 {#7535
          date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
        }
        #enabled: true
        #translations: Doctrine\ORM\PersistentCollection {#8627 …}
        #translationsCache: [
          "en_US" => App\Entity\Product\ProductTranslation {#8612
            #locale: "en_US"
            #translatable: App\Entity\Product\Product {#7520}
            #id: 31969
            #name: "IEEE 1249:1996"
            #slug: "ieee-1249-1996-ieee00001914-240892"
            #description: """
              New IEEE Standard - Superseded.<br />\n
              The application, design concepts, and implementation of computer-based control systems for hydroelectric power plant automation is addressed. Functional capabilities, performance requirements, interface requirements, hardware considerations, and operator training are discussed. Recommendations for system testing and acceptance are provided, and case studies of actual computer-based control applications are presented.<br />\n
              \t\t\t\t<br />\n
              This guide addresses the application, design concepts, and implementation of computer-based control systems for hydroelectric plant automation. It addresses functional capabilities, performance requirements, interface requirements, hardware considerations, and operator training. It includes recommendations for system testing and acceptance. Finally, case studies of actual computer-based automatic control applications are presented. The automation of control and data logging functions has relieved the plant operator of these tasks, allowing the operator more time to concentrate on other duties. In many cases, the plant’s operating costs can be significantly reduced by automation (primarily via staff reduction) while still maintaining a high level of unit control reliability. Automatic control systems for hydroelectric units based on electromechanical relay logic have been in general use for a number of years and, in fact, were considered standard practice for the industry. Within the last decade, microprocessor-based controllers have become available that are suitable for operation in a power plant environment. These computer-based systems have been applied for data logging, alarm monitoring, and unit and plant control. Advantages of computer-based control include use of graphical user interfaces, the incorporation of sequence of events and trending into the control system, the incorporation of artiÞcial intelligence and expert system capabilities, and reduced plant life cycle cost.<br />\n
              This guide is directed to the practicing engineer who has some familiarity with computer-based control systems and who is designing or implementing hydroelectric unit or plant control systems, either in a new project or as a retrofit to an existing one. This guide assumes that the control system logic has already been defined; thereefore, its development is not covered. For information on control sequence logic, the reader is directed to the IEEE guides for control of hydroelectric power plants listed in Clause 2. of this guide.
              """
            #metaKeywords: null
            #metaDescription: null
            #shortDescription: "IEEE Guide for Computer-Based Control for Hydroelectric Power Plant Automation"
            -notes: "Superseded"
          }
        ]
        #currentLocale: "en_US"
        #currentTranslation: null
        #fallbackLocale: "en_US"
        #variantSelectionMethod: "match"
        #productTaxons: Doctrine\ORM\PersistentCollection {#7943 …}
        #channels: Doctrine\ORM\PersistentCollection {#8104 …}
        #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7519 …}
        #reviews: Doctrine\ORM\PersistentCollection {#8066 …}
        #averageRating: 0.0
        #images: Doctrine\ORM\PersistentCollection {#8118 …}
        -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7681 …}
        -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7746 …}
        -apiLastModifiedAt: DateTime @1754517600 {#7530
          date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
        }
        -lastUpdatedAt: DateTime @1578006000 {#7496
          date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
        }
        -author: ""
        -publishedAt: DateTime @862869600 {#7531
          date: 1997-05-06 00:00:00.0 Europe/Paris (+02:00)
        }
        -releasedAt: null
        -confirmedAt: null
        -canceledAt: null
        -edition: null
        -coreDocument: "1249"
        -bookCollection: ""
        -pageCount: 72
        -documents: Doctrine\ORM\PersistentCollection {#7786 …}
        -favorites: Doctrine\ORM\PersistentCollection {#7928 …}
      }
      #optionValues: Doctrine\ORM\PersistentCollection {#9319 …}
      #position: 0
      #createdAt: DateTime @1751041150 {#8953
        date: 2025-06-27 18:19:10.0 Europe/Paris (+02:00)
      }
      #updatedAt: DateTime @1755611970 {#8952
        date: 2025-08-19 15:59:30.0 Europe/Paris (+02:00)
      }
      #enabled: true
      #translations: Doctrine\ORM\PersistentCollection {#9240 …}
      #translationsCache: [
        "en_US" => App\Entity\Product\ProductVariantTranslation {#95316
          #locale: "en_US"
          #translatable: App\Entity\Product\ProductVariant {#8927}
          #id: 3126
          #name: null
          -shortDescription: null
          -description: null
          -notes: null
          -shippingInformation: "Instant download"
        }
      ]
      #currentLocale: "en_US"
      #currentTranslation: null
      #fallbackLocale: "en_US"
      #version: 9
      #onHold: 0
      #onHand: 0
      #tracked: false
      #weight: 0.0
      #width: null
      #height: null
      #depth: null
      #taxCategory: Proxies\__CG__\App\Entity\Taxation\TaxCategory {#8957 …}
      #shippingCategory: null
      #channelPricings: Doctrine\ORM\PersistentCollection {#9320 …}
      #shippingRequired: true
      #images: Doctrine\ORM\PersistentCollection {#9248 …}
      -apiLastModifiedAt: DateTime @1753740000 {#8947
        date: 2025-07-29 00:00:00.0 Europe/Paris (+02:00)
      }
      -publishedAt: null
      -isbn: "978-0-7381-1119-3"
      -ean: "9780738111193"
      -numberOfUsers: 1
      -physicalProduct: false
      -downloadableImmediately: true
      -downloadable: true
      -drmViewerUrl: "https://online-viewer.normadoc.com/NmEC3U"
      -sellable: true
      -documents: Doctrine\ORM\PersistentCollection {#8958 …}
      -drmTokens: Doctrine\ORM\PersistentCollection {#9177 …}
      -enabledForSubscribers: true
      -currentAreaContext: null
    }
    #productName: null
    #variantName: null
  }
}
same as passed value
product
App\Entity\Product\Product {#7520
  #id: 9240
  #code: "IEEE00001914"
  #attributes: Doctrine\ORM\PersistentCollection {#8207 …}
  #variants: Doctrine\ORM\PersistentCollection {#8289 …}
  #options: Doctrine\ORM\PersistentCollection {#8628
    #collection: Doctrine\Common\Collections\ArrayCollection {#8618 …}
    #initialized: true
    -snapshot: [ …4]
    -owner: App\Entity\Product\Product {#7520}
    -association: [ …21]
    -em: ContainerHAOxQ06\EntityManagerGhostEbeb667 {#775 …}
    -backRefFieldName: null
    -typeClass: Symfony\Component\VarDumper\Caster\CutStub {#224896 …}
    -isDirty: false
  }
  #associations: Doctrine\ORM\PersistentCollection {#8585 …}
  #createdAt: DateTime @1751038088 {#7536
    date: 2025-06-27 17:28:08.0 Europe/Paris (+02:00)
  }
  #updatedAt: DateTime @1754606304 {#7535
    date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
  }
  #enabled: true
  #translations: Doctrine\ORM\PersistentCollection {#8627 …}
  #translationsCache: [
    "en_US" => App\Entity\Product\ProductTranslation {#8612
      #locale: "en_US"
      #translatable: App\Entity\Product\Product {#7520}
      #id: 31969
      #name: "IEEE 1249:1996"
      #slug: "ieee-1249-1996-ieee00001914-240892"
      #description: """
        New IEEE Standard - Superseded.<br />\n
        The application, design concepts, and implementation of computer-based control systems for hydroelectric power plant automation is addressed. Functional capabilities, performance requirements, interface requirements, hardware considerations, and operator training are discussed. Recommendations for system testing and acceptance are provided, and case studies of actual computer-based control applications are presented.<br />\n
        \t\t\t\t<br />\n
        This guide addresses the application, design concepts, and implementation of computer-based control systems for hydroelectric plant automation. It addresses functional capabilities, performance requirements, interface requirements, hardware considerations, and operator training. It includes recommendations for system testing and acceptance. Finally, case studies of actual computer-based automatic control applications are presented. The automation of control and data logging functions has relieved the plant operator of these tasks, allowing the operator more time to concentrate on other duties. In many cases, the plant’s operating costs can be significantly reduced by automation (primarily via staff reduction) while still maintaining a high level of unit control reliability. Automatic control systems for hydroelectric units based on electromechanical relay logic have been in general use for a number of years and, in fact, were considered standard practice for the industry. Within the last decade, microprocessor-based controllers have become available that are suitable for operation in a power plant environment. These computer-based systems have been applied for data logging, alarm monitoring, and unit and plant control. Advantages of computer-based control include use of graphical user interfaces, the incorporation of sequence of events and trending into the control system, the incorporation of artiÞcial intelligence and expert system capabilities, and reduced plant life cycle cost.<br />\n
        This guide is directed to the practicing engineer who has some familiarity with computer-based control systems and who is designing or implementing hydroelectric unit or plant control systems, either in a new project or as a retrofit to an existing one. This guide assumes that the control system logic has already been defined; thereefore, its development is not covered. For information on control sequence logic, the reader is directed to the IEEE guides for control of hydroelectric power plants listed in Clause 2. of this guide.
        """
      #metaKeywords: null
      #metaDescription: null
      #shortDescription: "IEEE Guide for Computer-Based Control for Hydroelectric Power Plant Automation"
      -notes: "Superseded"
    }
  ]
  #currentLocale: "en_US"
  #currentTranslation: null
  #fallbackLocale: "en_US"
  #variantSelectionMethod: "match"
  #productTaxons: Doctrine\ORM\PersistentCollection {#7943 …}
  #channels: Doctrine\ORM\PersistentCollection {#8104 …}
  #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7519 …}
  #reviews: Doctrine\ORM\PersistentCollection {#8066 …}
  #averageRating: 0.0
  #images: Doctrine\ORM\PersistentCollection {#8118 …}
  -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7681 …}
  -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7746 …}
  -apiLastModifiedAt: DateTime @1754517600 {#7530
    date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
  }
  -lastUpdatedAt: DateTime @1578006000 {#7496
    date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
  }
  -author: ""
  -publishedAt: DateTime @862869600 {#7531
    date: 1997-05-06 00:00:00.0 Europe/Paris (+02:00)
  }
  -releasedAt: null
  -confirmedAt: null
  -canceledAt: null
  -edition: null
  -coreDocument: "1249"
  -bookCollection: ""
  -pageCount: 72
  -documents: Doctrine\ORM\PersistentCollection {#7786 …}
  -favorites: Doctrine\ORM\PersistentCollection {#7928 …}
}
same as passed value

Resolved Options

Option Value
action
""
allow_extra_fields
false
allow_file_upload
false
attr
[]
attr_translation_parameters
[]
auto_initialize
true
block_name
null
block_prefix
null
by_reference
true
compound
true
constraints
[]
csrf_field_name
"_token"
csrf_message
"The CSRF token is invalid. Please try to resubmit the form."
csrf_protection
true
csrf_token_id
null
csrf_token_manager
Symfony\Component\Security\Csrf\CsrfTokenManager {#115627
  -generator: Symfony\Component\Security\Csrf\TokenGenerator\UriSafeTokenGenerator {#115628 …}
  -storage: Symfony\Component\Security\Csrf\TokenStorage\SessionTokenStorage {#115629 …}
  -namespace: Closure() {#115631 …}
}
data
Sylius\Bundle\OrderBundle\Controller\AddToCartCommand {#115607
  -cart: App\Entity\Order\Order {#15319 …}
  -cartItem: App\Entity\Order\OrderItem {#115595
    #id: null
    #order: null
    #quantity: 1
    #unitPrice: 0
    #originalUnitPrice: 0
    #total: 0
    #immutable: false
    #units: Doctrine\Common\Collections\ArrayCollection {#115619 …}
    #unitsTotal: 0
    #adjustments: Doctrine\Common\Collections\ArrayCollection {#115620 …}
    #adjustmentsTotal: 0
    #version: 1
    #variant: App\Entity\Product\ProductVariant {#8927
      #id: 3108
      #code: "IEEE00001914PDF"
      #product: App\Entity\Product\Product {#7520
        #id: 9240
        #code: "IEEE00001914"
        #attributes: Doctrine\ORM\PersistentCollection {#8207 …}
        #variants: Doctrine\ORM\PersistentCollection {#8289 …}
        #options: Doctrine\ORM\PersistentCollection {#8628
          #collection: Doctrine\Common\Collections\ArrayCollection {#8618 …}
          #initialized: true
          -snapshot: [ …4]
          -owner: App\Entity\Product\Product {#7520}
          -association: [ …21]
          -em: ContainerHAOxQ06\EntityManagerGhostEbeb667 {#775 …}
          -backRefFieldName: null
          -typeClass: Symfony\Component\VarDumper\Caster\CutStub {#224896 …}
          -isDirty: false
        }
        #associations: Doctrine\ORM\PersistentCollection {#8585 …}
        #createdAt: DateTime @1751038088 {#7536
          date: 2025-06-27 17:28:08.0 Europe/Paris (+02:00)
        }
        #updatedAt: DateTime @1754606304 {#7535
          date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
        }
        #enabled: true
        #translations: Doctrine\ORM\PersistentCollection {#8627 …}
        #translationsCache: [
          "en_US" => App\Entity\Product\ProductTranslation {#8612
            #locale: "en_US"
            #translatable: App\Entity\Product\Product {#7520}
            #id: 31969
            #name: "IEEE 1249:1996"
            #slug: "ieee-1249-1996-ieee00001914-240892"
            #description: """
              New IEEE Standard - Superseded.<br />\n
              The application, design concepts, and implementation of computer-based control systems for hydroelectric power plant automation is addressed. Functional capabilities, performance requirements, interface requirements, hardware considerations, and operator training are discussed. Recommendations for system testing and acceptance are provided, and case studies of actual computer-based control applications are presented.<br />\n
              \t\t\t\t<br />\n
              This guide addresses the application, design concepts, and implementation of computer-based control systems for hydroelectric plant automation. It addresses functional capabilities, performance requirements, interface requirements, hardware considerations, and operator training. It includes recommendations for system testing and acceptance. Finally, case studies of actual computer-based automatic control applications are presented. The automation of control and data logging functions has relieved the plant operator of these tasks, allowing the operator more time to concentrate on other duties. In many cases, the plant’s operating costs can be significantly reduced by automation (primarily via staff reduction) while still maintaining a high level of unit control reliability. Automatic control systems for hydroelectric units based on electromechanical relay logic have been in general use for a number of years and, in fact, were considered standard practice for the industry. Within the last decade, microprocessor-based controllers have become available that are suitable for operation in a power plant environment. These computer-based systems have been applied for data logging, alarm monitoring, and unit and plant control. Advantages of computer-based control include use of graphical user interfaces, the incorporation of sequence of events and trending into the control system, the incorporation of artiÞcial intelligence and expert system capabilities, and reduced plant life cycle cost.<br />\n
              This guide is directed to the practicing engineer who has some familiarity with computer-based control systems and who is designing or implementing hydroelectric unit or plant control systems, either in a new project or as a retrofit to an existing one. This guide assumes that the control system logic has already been defined; thereefore, its development is not covered. For information on control sequence logic, the reader is directed to the IEEE guides for control of hydroelectric power plants listed in Clause 2. of this guide.
              """
            #metaKeywords: null
            #metaDescription: null
            #shortDescription: "IEEE Guide for Computer-Based Control for Hydroelectric Power Plant Automation"
            -notes: "Superseded"
          }
        ]
        #currentLocale: "en_US"
        #currentTranslation: null
        #fallbackLocale: "en_US"
        #variantSelectionMethod: "match"
        #productTaxons: Doctrine\ORM\PersistentCollection {#7943 …}
        #channels: Doctrine\ORM\PersistentCollection {#8104 …}
        #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7519 …}
        #reviews: Doctrine\ORM\PersistentCollection {#8066 …}
        #averageRating: 0.0
        #images: Doctrine\ORM\PersistentCollection {#8118 …}
        -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7681 …}
        -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7746 …}
        -apiLastModifiedAt: DateTime @1754517600 {#7530
          date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
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