{"product_id":"1756-of8-allen-bradley-controllogix-8-channel-analog-output-module","title":"Módulo de Saída Analógica de 8 Canais ControlLogix 1756-OF8 Allen-Bradley","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eVisão Geral do Produto e Controle de Precisão\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eO\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OF8 (1756OF8)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eé um\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMódulo de Saída Analógica\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eversátil e de alta densidade pertencente à família\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eControlLogix\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e. Ele oferece\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8 canais não isolados\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecapazes de fornecer sinais de tensão ou corrente de alta precisão para dispositivos de campo. Projetado para aplicações exigentes, como controle de velocidade de inversores de frequência (VFD), posicionamento de válvulas e modulação de atuadores, o\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OF8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoferece atualizações em submilissegundos e conversão digital-para-analógica de alta resolução. Este módulo é fundamental para o controle de processos em malha fechada, permitindo a integração perfeita de equipamentos analógicos de campo na Arquitetura Integrada Logix.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eArquitetura de Hardware e Flexibilidade de Sinal\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eO\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OF8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eocupa um único slot em qualquer chassi 1756 ControlLogix e se comunica com o processador através do backplane de alta velocidade.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModos de Saída Selecionáveis:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCada um dos 8 canais pode ser configurado individualmente para\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTensão (+\/- 10V)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eou\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCorrente (0 a 20 mA ou 4 a 20 mA)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAlta Resolução:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePossui\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eresolução de 15 bits\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eem todas as faixas (aproximadamente 320 uV por contagem para tensão e 0,65 uA por contagem para corrente), fornecendo a granularidade necessária para controle sensível de fluxo ou pressão.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTaxas de Atualização Rápidas:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOferece um RPI (Intervalo de Pacote Solicitado) tão baixo quanto\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2 ms\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003epara todos os 8 canais, garantindo que os comandos de controle sejam executados com latência mínima.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDiagnósticos Integrados:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInclui recursos de hardware para\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDetecção de Fio Aberto\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(no modo corrente) e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eProteção contra Curto-Circuito\u003c\/strong\u003e, fornecendo feedback em tempo real ao controlador sobre a integridade do lado de campo.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEspecificações Técnicas\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eEspecificação\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetalhes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModelo\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e1756-OF8\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFabricante\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAllen-Bradley \/ Rockwell Automation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCanais de Saída\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Não isolados\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFaixa de Tensão\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e+\/- 10 VCC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFaixa de Corrente\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 a 20 mA \/ 4 a 20 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResolução\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15 bits (com sinal)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCorrente do Backplane (5V)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCorrente do Backplane (24V)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e120 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTempo de Estabilização da Saída\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt; 2 ms (Típico)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTemperatura de Operação\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 a 60 graus Celsius\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePeso para Envio\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e1,0 kg\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003ePerguntas Técnicas Frequentes Integradas\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eO 1756-OF8 oferece isolamento entre canais?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNão. O\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OF8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eé um módulo\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003enão isolado\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e, o que significa que todos os 8 canais compartilham um retorno comum. Se sua aplicação requer aterramento independente para cada sinal (para evitar loops de terra entre diferentes inversores), você deve utilizar o módulo\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OF8I\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Isolado).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO que acontece com as saídas se o CLP entrar em estado de Falha ou for colocado no modo Programa?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eO módulo possui comportamentos configuráveis para\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\"Modo Programa\" e \"Modo Falha\"\u003c\/strong\u003e. No software Studio 5000, você pode escolher que cada saída mantenha seu último valor, mude para um estado seguro específico (por exemplo, 4 mA) ou vá para o mínimo\/máximo da sua faixa.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePosso calibrar o 1756-OF8 no campo?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSim. O módulo suporta\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecalibração em campo\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eatravés do software. Usando um voltímetro ou amperímetro de alta precisão, você pode ajustar os parâmetros de offset e ganho para cada canal, considerando fatores ambientais ou longas extensões de cabo.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eProtocolos de Engenharia e Instalação\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibilidade com Braço de Fiação:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEste módulo requer um\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-TBNH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(20 pinos) ou\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-TBSH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(terminal de mola) Bloco Terminal Removível (RTB). Sempre certifique-se de que o RTB esteja totalmente encaixado e a trava engatada antes de aplicar energia ao campo.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eResistência do Loop de Corrente:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAo operar no modo corrente (4-20 mA), certifique-se de que a impedância total do loop (resistência do fio mais a carga) não exceda\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e550 Ohms\u003c\/strong\u003e. Ultrapassar esse limite impedirá que o módulo alcance a saída máxima de 20 mA.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEstratégia de Blindagem:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePara controle analógico de alta resolução, use cabos\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epar trançado blindado (STP)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e. Termine a blindagem na barra de terra do chassi ControlLogix. Evite aterrar a blindagem na extremidade do dispositivo de campo para prevenir loops de terra que introduzam ruído no sinal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eVantagens de Engenharia\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eO\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OF8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ese destaca em\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDensidade de Sistema de Controle\u003c\/strong\u003e. Ao fornecer 8 canais em um único slot, reduz a área total do chassi e os custos de hardware para sistemas com alta contagem analógica. Sua capacidade de realizar\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003econversão digital-para-analógica\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003elocalmente no módulo permite que o processador principal se concentre na lógica de alto nível, enquanto o\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-OF8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econtrola a rampa elétrica precisa de subida e descida dos sinais. Isso o torna uma escolha ideal para as indústrias química, de alimentos e bebidas e geração de energia, onde confiabilidade e modulação precisa das variáveis de processo são essenciais.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695191650667,"sku":"Allen Bradley 1756-OF8","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1756-of8-controllogix-8-pt-a-o-i-or-v-module-etawkyw3sxm_f87e85f3-4474-41e8-a6dd-ecaa3415a39a.jpg?v=1766114654","url":"https:\/\/www.plcprotech.com\/pt\/products\/1756-of8-allen-bradley-controllogix-8-channel-analog-output-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}