DMX512\u706f\u5e26\u4e0eRS-485\u534f\u8bae\u8be6\u89e3<\/title>\n<style>\n \/* ===================================================\n WordPress \u535a\u5ba2\u6587\u7ae0\u6837\u5f0f\n - \u767d\u8272\u80cc\u666f\uff0c\u9002\u914d WordPress \u4e3b\u9898\u5185\u5bb9\u533a\n - \u4f7f\u7528\u7cfb\u7edf\u5b57\u4f53\u6808\uff0c\u65e0\u5916\u90e8\u5b57\u4f53\u4f9d\u8d56\n - \u5bbd\u5ea6 100% \u81ea\u9002\u5e94\uff0cmax-width \u7531\u5916\u5c42\u4e3b\u9898\u63a7\u5236\n =================================================== *\/\n\n :root {\n --color-bg: #ffffff;\n --color-surface: #f5f7fa;\n --color-surface2: #eef1f6;\n --color-border: #dde2ea;\n --color-accent: #0057d9;\n --color-accent-lt: #e8f0fe;\n --color-accent2: #d14900;\n --color-accent2-lt: #fff0e8;\n --color-green: #1a7a3c;\n --color-green-lt: #e6f4ec;\n --color-text: #1a1d23;\n --color-text-2: #484f5e;\n --color-text-3: #7a8394;\n --color-text-4: #a8b0bf;\n\n --font-body: -apple-system, BlinkMacSystemFont, \"Segoe UI\", \"PingFang SC\",\n \"Hiragino Sans GB\", \"Microsoft YaHei\", \"Helvetica Neue\", sans-serif;\n --font-mono: \"SF Mono\", \"Fira Code\", \"Cascadia Code\", Consolas,\n \"Courier New\", monospace;\n\n --radius-sm: 4px;\n --radius-md: 8px;\n --radius-lg: 12px;\n\n --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);\n --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);\n }\n\n \/* === RESET for WordPress content area === *\/\n .dmx-article * { box-sizing: border-box; }\n .dmx-article { all: initial; display: block; }\n\n .dmx-article,\n .dmx-article p,\n .dmx-article li,\n .dmx-article td,\n .dmx-article th,\n .dmx-article blockquote {\n font-family: var(--font-body);\n color: var(--color-text);\n font-size: 15px;\n line-height: 1.85;\n }\n\n \/* === HERO BANNER === *\/\n .dmx-hero {\n background: var(--color-surface);\n border-left: 4px solid var(--color-accent);\n border-radius: 0 var(--radius-md) var(--radius-md) 0;\n padding: 32px 36px;\n margin-bottom: 40px;\n }\n\n .dmx-eyebrow {\n display: inline-block;\n font-family: var(--font-mono);\n font-size: 11px;\n letter-spacing: 0.18em;\n text-transform: uppercase;\n color: var(--color-accent);\n background: var(--color-accent-lt);\n padding: 3px 10px;\n border-radius: 3px;\n margin-bottom: 14px;\n }\n\n .dmx-hero h1 {\n font-family: var(--font-body);\n font-size: clamp(22px, 3.5vw, 32px);\n font-weight: 700;\n color: var(--color-text);\n line-height: 1.3;\n margin: 0 0 12px;\n letter-spacing: -0.01em;\n }\n\n .dmx-hero h1 em {\n font-style: normal;\n color: var(--color-accent);\n }\n\n .dmx-hero .dmx-lead {\n font-size: 15px;\n color: var(--color-text-2);\n max-width: 640px;\n margin: 0 0 20px;\n line-height: 1.75;\n }\n\n .dmx-meta {\n display: flex;\n flex-wrap: wrap;\n gap: 16px;\n padding-top: 16px;\n border-top: 1px solid var(--color-border);\n }\n\n .dmx-meta-item {\n display: flex;\n align-items: center;\n gap: 5px;\n font-size: 12px;\n color: var(--color-text-3);\n font-family: var(--font-mono);\n }\n\n \/* === SECTION === *\/\n .dmx-section {\n margin-bottom: 52px;\n }\n\n .dmx-section-head {\n display: flex;\n align-items: center;\n gap: 12px;\n margin-bottom: 20px;\n padding-bottom: 12px;\n border-bottom: 2px solid var(--color-surface2);\n }\n\n .dmx-section-num {\n flex-shrink: 0;\n width: 28px;\n height: 28px;\n border-radius: 50%;\n background: var(--color-accent);\n color: #fff;\n font-family: var(--font-mono);\n font-size: 12px;\n font-weight: 600;\n display: flex;\n align-items: center;\n justify-content: center;\n }\n\n .dmx-section h2 {\n font-family: var(--font-body);\n font-size: 19px;\n font-weight: 700;\n color: var(--color-text);\n margin: 0;\n letter-spacing: -0.01em;\n }\n\n .dmx-section p {\n margin: 0 0 16px;\n color: var(--color-text-2);\n }\n\n .dmx-section p strong { color: var(--color-text); font-weight: 600; }\n\n \/* === CALLOUT === *\/\n .dmx-callout {\n background: var(--color-accent-lt);\n border: 1px solid #c2d6fb;\n border-left: 3px solid var(--color-accent);\n border-radius: var(--radius-sm);\n padding: 16px 20px;\n margin: 20px 0;\n font-size: 14.5px;\n color: var(--color-text);\n line-height: 1.75;\n }\n\n .dmx-callout .dmx-callout-label {\n font-family: var(--font-mono);\n font-size: 10px;\n letter-spacing: 0.18em;\n text-transform: uppercase;\n color: var(--color-accent);\n font-weight: 700;\n display: block;\n margin-bottom: 6px;\n }\n\n \/* === TABLE === *\/\n .dmx-table-wrap {\n overflow-x: auto;\n margin: 20px 0;\n border-radius: var(--radius-md);\n border: 1px solid var(--color-border);\n box-shadow: var(--shadow-sm);\n }\n\n .dmx-table {\n width: 100%;\n border-collapse: collapse;\n font-size: 14px;\n }\n\n .dmx-table thead {\n background: var(--color-surface);\n }\n\n .dmx-table thead th {\n padding: 11px 16px;\n text-align: left;\n font-family: var(--font-mono);\n font-size: 11px;\n letter-spacing: 0.12em;\n text-transform: uppercase;\n color: var(--color-text-3);\n font-weight: 600;\n border-bottom: 1px solid var(--color-border);\n white-space: nowrap;\n }\n\n .dmx-table tbody tr {\n border-bottom: 1px solid var(--color-border);\n transition: background 0.12s;\n }\n\n .dmx-table tbody tr:last-child { border-bottom: none; }\n .dmx-table tbody tr:hover { background: var(--color-surface); }\n\n .dmx-table td {\n padding: 12px 16px;\n color: var(--color-text-2);\n vertical-align: top;\n font-size: 14px;\n }\n\n .dmx-table td:first-child {\n font-family: var(--font-mono);\n font-size: 13px;\n color: var(--color-accent2);\n font-weight: 600;\n white-space: nowrap;\n }\n\n .dmx-badge {\n display: inline-block;\n font-family: var(--font-mono);\n font-size: 11px;\n font-weight: 600;\n padding: 2px 8px;\n border-radius: 3px;\n }\n\n .dmx-badge-blue {\n background: var(--color-accent-lt);\n color: var(--color-accent);\n border: 1px solid #c2d6fb;\n }\n\n .dmx-badge-green {\n background: var(--color-green-lt);\n color: var(--color-green);\n border: 1px solid #b8dfc8;\n }\n\n \/* === PROTOCOL FRAME === *\/\n .dmx-protocol-box {\n background: var(--color-surface);\n border: 1px solid var(--color-border);\n border-radius: var(--radius-lg);\n padding: 24px;\n margin: 20px 0;\n box-shadow: var(--shadow-sm);\n }\n\n .dmx-protocol-box h3 {\n font-family: var(--font-mono);\n font-size: 11px;\n letter-spacing: 0.18em;\n text-transform: uppercase;\n color: var(--color-text-3);\n margin: 0 0 18px;\n padding-bottom: 10px;\n border-bottom: 1px solid var(--color-border);\n font-weight: 600;\n }\n\n \/* Frame diagram *\/\n .dmx-frame-diagram {\n display: flex;\n overflow-x: auto;\n border: 1px solid var(--color-border);\n border-radius: var(--radius-sm);\n margin-bottom: 24px;\n }\n\n .dmx-frame-cell {\n flex-shrink: 0;\n padding: 12px 14px;\n text-align: center;\n border-right: 1px solid var(--color-border);\n display: flex;\n flex-direction: column;\n gap: 4px;\n }\n\n .dmx-frame-cell:last-child { border-right: none; flex: 1; }\n\n .dmx-frame-cell .fc-name {\n font-family: var(--font-mono);\n font-size: 12px;\n font-weight: 700;\n }\n\n .dmx-frame-cell .fc-note {\n font-size: 11px;\n color: var(--color-text-3);\n white-space: nowrap;\n }\n\n .dmx-frame-cell .fc-val {\n font-family: var(--font-mono);\n font-size: 11px;\n font-weight: 600;\n margin-top: 2px;\n }\n\n .fc-break { background: var(--color-accent2-lt); }\n .fc-break .fc-name { color: var(--color-accent2); }\n .fc-break .fc-val { color: var(--color-accent2); }\n\n .fc-mab { background: var(--color-accent-lt); }\n .fc-mab .fc-name { color: var(--color-accent); }\n .fc-mab .fc-val { color: var(--color-accent); }\n\n .fc-sc { background: var(--color-green-lt); }\n .fc-sc .fc-name { color: var(--color-green); }\n .fc-sc .fc-val { color: var(--color-green); }\n\n .fc-data { background: var(--color-surface2); }\n .fc-data .fc-name { color: var(--color-text); }\n .fc-data .fc-val { color: var(--color-text-2); }\n\n \/* Params grid *\/\n .dmx-params-grid {\n display: grid;\n grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));\n gap: 10px;\n }\n\n .dmx-param {\n background: #fff;\n border: 1px solid var(--color-border);\n border-radius: var(--radius-sm);\n padding: 12px 14px;\n box-shadow: var(--shadow-sm);\n }\n\n .dmx-param .pk {\n font-family: var(--font-mono);\n font-size: 10px;\n letter-spacing: 0.15em;\n text-transform: uppercase;\n color: var(--color-text-3);\n font-weight: 600;\n margin-bottom: 4px;\n }\n\n .dmx-param .pv {\n font-family: var(--font-mono);\n font-size: 16px;\n font-weight: 700;\n color: var(--color-accent);\n }\n\n \/* === STEPS === *\/\n .dmx-steps {\n display: flex;\n flex-direction: column;\n gap: 12px;\n margin: 20px 0;\n position: relative;\n }\n\n .dmx-steps::before {\n content: '';\n position: absolute;\n left: 18px;\n top: 36px;\n bottom: 36px;\n width: 2px;\n background: var(--color-border);\n }\n\n .dmx-step {\n display: flex;\n gap: 16px;\n align-items: flex-start;\n background: #fff;\n border: 1px solid var(--color-border);\n border-radius: var(--radius-md);\n padding: 16px 18px;\n box-shadow: var(--shadow-sm);\n position: relative;\n transition: box-shadow 0.2s, border-color 0.2s;\n }\n\n .dmx-step:hover {\n border-color: #c2d6fb;\n box-shadow: var(--shadow-md);\n }\n\n .dmx-step-num {\n flex-shrink: 0;\n width: 32px;\n height: 32px;\n border-radius: 50%;\n background: var(--color-accent);\n color: #fff;\n font-family: var(--font-mono);\n font-size: 13px;\n font-weight: 700;\n display: flex;\n align-items: center;\n justify-content: center;\n margin-top: 1px;\n }\n\n .dmx-step-body strong {\n display: block;\n font-size: 15px;\n font-weight: 600;\n color: var(--color-text);\n margin-bottom: 4px;\n }\n\n .dmx-step-body span {\n font-size: 14px;\n color: var(--color-text-2);\n line-height: 1.7;\n }\n\n \/* === WARN CARDS === *\/\n .dmx-warn-grid {\n display: grid;\n grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));\n gap: 14px;\n margin: 20px 0;\n }\n\n .dmx-warn-card {\n background: #fff;\n border: 1px solid var(--color-border);\n border-radius: var(--radius-md);\n padding: 18px 20px;\n box-shadow: var(--shadow-sm);\n position: relative;\n overflow: hidden;\n }\n\n .dmx-warn-card::before {\n content: '';\n position: absolute;\n top: 0; left: 0; right: 0;\n height: 3px;\n border-radius: var(--radius-md) var(--radius-md) 0 0;\n }\n\n .dmx-warn-card.warn-red::before { background: #e53e3e; }\n .dmx-warn-card.warn-amber::before { background: #d97706; }\n .dmx-warn-card.warn-blue::before { background: var(--color-accent); }\n\n .dmx-warn-icon {\n font-size: 22px;\n margin-bottom: 10px;\n display: block;\n }\n\n .dmx-warn-title {\n font-size: 13px;\n font-weight: 700;\n color: var(--color-text);\n margin-bottom: 6px;\n }\n\n .dmx-warn-card p {\n font-size: 13px;\n color: var(--color-text-2);\n margin: 0;\n line-height: 1.65;\n }\n\n \/* === CODE inline === *\/\n .dmx-article code {\n font-family: var(--font-mono);\n font-size: 12.5px;\n background: var(--color-surface2);\n color: var(--color-accent2);\n padding: 1px 6px;\n border-radius: 3px;\n border: 1px solid var(--color-border);\n }\n\n \/* === REPLY TEMPLATE === *\/\n .dmx-reply {\n background: var(--color-surface);\n border: 1px solid var(--color-border);\n border-radius: var(--radius-lg);\n overflow: hidden;\n margin: 20px 0;\n box-shadow: var(--shadow-sm);\n }\n\n .dmx-reply-header {\n background: var(--color-surface2);\n padding: 10px 18px;\n font-family: var(--font-mono);\n font-size: 11px;\n letter-spacing: 0.14em;\n color: var(--color-text-3);\n text-transform: uppercase;\n font-weight: 600;\n border-bottom: 1px solid var(--color-border);\n display: flex;\n align-items: center;\n gap: 8px;\n }\n\n .dmx-reply-header::before {\n content: '\ud83d\udcac';\n font-size: 14px;\n }\n\n .dmx-reply-body {\n padding: 20px 24px;\n font-size: 14px;\n line-height: 1.85;\n color: var(--color-text-2);\n margin: 0;\n border-left: 3px solid var(--color-accent);\n }\n\n .dmx-reply-body strong { color: var(--color-accent); font-style: normal; font-weight: 600; }\n\n \/* === DIVIDER === *\/\n .dmx-divider {\n border: none;\n border-top: 1px solid var(--color-border);\n margin: 40px 0;\n }\n\n \/* === FOOTER TAG STRIP === *\/\n .dmx-tags {\n display: flex;\n flex-wrap: wrap;\n gap: 8px;\n margin-top: 40px;\n padding-top: 20px;\n border-top: 1px solid var(--color-border);\n }\n\n .dmx-tag {\n font-family: var(--font-mono);\n font-size: 11px;\n padding: 4px 10px;\n border: 1px solid var(--color-border);\n border-radius: 3px;\n color: var(--color-text-3);\n background: var(--color-surface);\n letter-spacing: 0.06em;\n }\n\n \/* === RESPONSIVE === *\/\n @media (max-width: 600px) {\n .dmx-hero { padding: 22px 18px; }\n .dmx-params-grid { grid-template-columns: 1fr 1fr; }\n .dmx-steps::before { display: none; }\n .dmx-section h2 { font-size: 17px; }\n }\n<\/style>\n<\/head>\n<body style=\"background:#fff; margin:0; padding:0;\">\n\n\n\n<article class=\"dmx-article\">\n\n \n <div class=\"dmx-hero\">\n <span class=\"dmx-eyebrow\">\u6280\u672f\u6587\u6863 \u00b7 Technical Note<\/span>\n <h1>DMX512 \u706f\u5e26\u4e0e <em>RS-485<\/em> \u534f\u8bae<br>\u7a76\u7adf\u662f\u4ec0\u4e48\u5173\u7cfb\uff1f<\/h1>\n <p class=\"dmx-lead\">\n \u5ba2\u6237\u5e38\u95ee\uff1a\u4f60\u4eec\u7684\u8f6f\u706f\u5e26\u652f\u6301 485 \u534f\u8bae\u5417\uff1f\u7b54\u6848\u662f”\u662f\uff0c\u4e5f\u4e0d\u5b8c\u5168\u662f”\u3002\n \u672c\u6587\u5398\u6e05\u7269\u7406\u5c42\u4e0e\u5e94\u7528\u5c42\u7684\u5173\u7cfb\uff0c\u5e2e\u52a9\u60a8\u6b63\u786e\u7406\u89e3\u5e76\u63a5\u5165\u6211\u4eec\u7684 DMX512 \u667a\u80fd\u706f\u5e26\u3002\n <\/p>\n <div class=\"dmx-meta\">\n <span class=\"dmx-meta-item\">\ud83d\udcd6 \u9605\u8bfb\u7ea6 5 \u5206\u949f<\/span>\n <span class=\"dmx-meta-item\">\ud83c\udff7 DMX512 \u00b7 RS-485 \u00b7 \u706f\u5e26\u63a7\u5236<\/span>\n <span class=\"dmx-meta-item\">\ud83d\udcd0 \u53c2\u8003\u6807\u51c6\uff1aANSI E1.11<\/span>\n <\/div>\n <\/div>\n\n\n \n <section class=\"dmx-section\">\n <div class=\"dmx-section-head\">\n <div class=\"dmx-section-num\">1<\/div>\n <h2>\u6838\u5fc3\u6982\u5ff5\uff1a\u4e24\u8005\u662f\u4ec0\u4e48\u5173\u7cfb\uff1f<\/h2>\n <\/div>\n\n <p>\n \u4e0d\u5c11\u5ba2\u6237\u62ff\u5230\u6211\u4eec\u7684\u706f\u5e26\uff0c\u770b\u5230\u63a5\u53e3\u4e0a\u6709 <strong>A\u3001B<\/strong> \u4e24\u4e2a\u5f15\u811a\uff0c\u4fbf\u95ee\uff1a”\u8fd9\u662f\u4e0d\u662f 485 \u534f\u8bae\u7684\u706f\u5e26\uff1f”\n \u8fd9\u4e2a\u95ee\u9898\u9700\u8981\u4ece\u4e24\u4e2a\u5c42\u9762\u6765\u7406\u89e3\u3002\n <\/p>\n\n <div class=\"dmx-callout\">\n <span class=\"dmx-callout-label\">\u4e00\u53e5\u8bdd\u603b\u7ed3<\/span>\n <strong>RS-485 \u662f”\u516c\u8def”\uff0cDMX512 \u662f”\u4ea4\u901a\u89c4\u5219”\u3002<\/strong>\n \u6211\u4eec\u7684\u706f\u5e26\u4f7f\u7528 RS-485 \u7269\u7406\u63a5\u53e3\u4f20\u8f93\u4fe1\u53f7\uff0c\u4f46\u63a7\u5236\u534f\u8bae\u9075\u5faa DMX512 \u6807\u51c6\uff0c\u4e24\u8005\u76f8\u8f85\u76f8\u6210\uff0c\u7f3a\u4e00\u4e0d\u53ef\u3002\n <\/div>\n\n <div class=\"dmx-table-wrap\">\n <table class=\"dmx-table\">\n <thead>\n <tr>\n <th>\u5c42\u7ea7<\/th>\n <th>\u6807\u51c6 \/ \u534f\u8bae<\/th>\n <th>\u4f5c\u7528<\/th>\n <th>\u7c7b\u6bd4<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>\u7269\u7406\u5c42<\/td>\n <td><span class=\"dmx-badge dmx-badge-blue\">RS-485<\/span><\/td>\n <td>\u5dee\u5206\u4fe1\u53f7\u7535\u6c14\u89c4\u8303\uff0c\u6297\u5e72\u6270\u3001\u652f\u6301\u957f\u8ddd\u79bb\u4f20\u8f93<\/td>\n <td>\u9053\u8def + \u6c7d\u8f66<\/td>\n <\/tr>\n <tr>\n <td>\u534f\u8bae\u5c42<\/td>\n <td><span class=\"dmx-badge dmx-badge-green\">DMX512<\/span><\/td>\n <td>\u6570\u636e\u5e27\u683c\u5f0f\u3001\u65f6\u5e8f\u3001\u901a\u9053\u5730\u5740\u5206\u914d\u89c4\u5219<\/td>\n <td>\u4ea4\u901a\u6cd5\u89c4<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n <p>\n \u56e0\u6b64\uff0c<strong>DMX512 \u706f\u5e26\u786e\u5b9e\u4f7f\u7528 RS-485 \u7269\u7406\u63a5\u53e3<\/strong>\uff0c\u4f46\u4ec5\u51ed RS-485 \u6536\u53d1\u5668\u8fd8\u4e0d\u591f\u2014\u2014\n \u5fc5\u987b\u6309\u7167 DMX512 \u534f\u8bae\u683c\u5f0f\u53d1\u9001\u6570\u636e\uff0c\u706f\u5e26\u624d\u80fd\u6b63\u786e\u54cd\u5e94\u3002\n \u666e\u901a Modbus RTU \u4e3b\u673a\u867d\u7136\u4e5f\u8d70 RS-485\uff0c\u4f46\u5e27\u683c\u5f0f\u5b8c\u5168\u4e0d\u540c\uff0c<strong>\u65e0\u6cd5\u76f4\u63a5\u63a7\u5236 DMX512 \u706f\u5e26<\/strong>\u3002\n <\/p>\n <\/section>\n\n <hr class=\"dmx-divider\">\n\n \n <section class=\"dmx-section\">\n <div class=\"dmx-section-head\">\n <div class=\"dmx-section-num\">2<\/div>\n <h2>\u706f\u5e26\u63a5\u53e3\u8bf4\u660e<\/h2>\n <\/div>\n\n <p>\u6211\u4eec\u7684 DMX512 \u8f6f\u706f\u5e26\u5171\u6709 <strong>5 \u4e2a\u63a5\u53e3<\/strong>\uff0c\u5404\u5f15\u811a\u529f\u80fd\u5982\u4e0b\uff1a<\/p>\n\n <div class=\"dmx-table-wrap\">\n <table class=\"dmx-table\">\n <thead>\n <tr>\n <th>\u5f15\u811a<\/th>\n <th>\u540d\u79f0<\/th>\n <th>\u8bf4\u660e<\/th>\n <th>\u5907\u6ce8<\/th>\n <\/tr>\n <\/thead>\n <tbody>\n <tr>\n <td>24V<\/td>\n <td>\u7535\u6e90\u6b63\u6781<\/td>\n <td>\u706f\u5e26\u4f9b\u7535\u8f93\u5165\uff0c\u4f7f\u7528\u7a33\u538b\u76f4\u6d41\u7535\u6e90<\/td>\n <td>\u2014<\/td>\n <\/tr>\n <tr>\n <td>GND<\/td>\n <td>\u7535\u6e90\u8d1f\u6781 \/ \u4fe1\u53f7\u5730<\/td>\n <td>\u7535\u6e90\u56de\u8def\u53ca\u4fe1\u53f7\u53c2\u8003\u5730<\/td>\n <td>\u987b\u4e0e\u63a7\u5236\u5668\u5171\u5730<\/td>\n <\/tr>\n <tr>\n <td>PI<\/td>\n <td>\u50cf\u7d20\u7d22\u5f15 \/ \u65f6\u949f<\/td>\n <td>\u7528\u4e8e\u706f\u5e26\u5730\u5740\u81ea\u52a8\u5206\u914d\u6216\u50cf\u7d20\u65f6\u949f\u540c\u6b65<\/td>\n <td>\u6309\u9700\u8fde\u63a5<\/td>\n <\/tr>\n <tr>\n <td>A<\/td>\n <td>RS-485 \u5dee\u5206\u4fe1\u53f7 A<\/td>\n <td>\u975e\u53cd\u76f8\u7aef\uff08Non-Inverting\uff09<\/td>\n <td>\u63a5\u63a7\u5236\u5668 A \u7aef<\/td>\n <\/tr>\n <tr>\n <td>B<\/td>\n <td>RS-485 \u5dee\u5206\u4fe1\u53f7 B<\/td>\n <td>\u53cd\u76f8\u7aef\uff08Inverting\uff09<\/td>\n <td>\u63a5\u63a7\u5236\u5668 B \u7aef<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n <\/section>\n\n <hr class=\"dmx-divider\">\n\n \n <section class=\"dmx-section\">\n <div class=\"dmx-section-head\">\n <div class=\"dmx-section-num\">3<\/div>\n <h2>DMX512 \u534f\u8bae\u6838\u5fc3\u89c4\u8303<\/h2>\n <\/div>\n\n <p>\n DMX512 \u5168\u79f0 <strong>Digital Multiplex 512<\/strong>\uff0c\u56fd\u9645\u6807\u51c6\u7f16\u53f7\u4e3a <strong>ANSI E1.11<\/strong>\u3002\n \u4ee5\u4e0b\u662f\u63a7\u5236\u6211\u4eec\u706f\u5e26\u6240\u9700\u638c\u63e1\u7684\u5173\u952e\u53c2\u6570\uff1a\n <\/p>\n\n <div class=\"dmx-protocol-box\">\n <h3>\u6570\u636e\u5e27\u7ed3\u6784<\/h3>\n\n <div class=\"dmx-frame-diagram\">\n <div class=\"dmx-frame-cell fc-break\">\n <span class=\"fc-name\">BREAK<\/span>\n <span class=\"fc-note\">\u7a7a\u767d\u4fe1\u53f7<\/span>\n <span class=\"fc-val\">\u2265 92 \u03bcs<\/span>\n <\/div>\n <div class=\"dmx-frame-cell fc-mab\">\n <span class=\"fc-name\">MAB<\/span>\n <span class=\"fc-note\">\u5e27\u524d\u6807\u8bb0<\/span>\n <span class=\"fc-val\">\u2265 12 \u03bcs<\/span>\n <\/div>\n <div class=\"dmx-frame-cell fc-sc\">\n <span class=\"fc-name\">SC<\/span>\n <span class=\"fc-note\">\u8d77\u59cb\u7801<\/span>\n <span class=\"fc-val\">0x00<\/span>\n <\/div>\n <div class=\"dmx-frame-cell fc-data\">\n <span class=\"fc-name\">DATA[1] \uff5e DATA[512]<\/span>\n <span class=\"fc-note\">\u901a\u9053\u6570\u636e\uff0c\u6bcf\u5b57\u8282\u5bf9\u5e94 1 \u4e2a\u901a\u9053<\/span>\n <span class=\"fc-val\">\u6700\u591a 512 \u5b57\u8282<\/span>\n <\/div>\n <\/div>\n\n <div class=\"dmx-params-grid\">\n <div class=\"dmx-param\">\n <div class=\"pk\">\u6ce2\u7279\u7387<\/div>\n <div class=\"pv\">250 Kbps<\/div>\n <\/div>\n <div class=\"dmx-param\">\n <div class=\"pk\">\u6570\u636e\u4f4d<\/div>\n <div class=\"pv\">8 \u4f4d<\/div>\n <\/div>\n <div class=\"dmx-param\">\n <div class=\"pk\">\u505c\u6b62\u4f4d<\/div>\n <div class=\"pv\">2 \u4f4d<\/div>\n <\/div>\n <div class=\"dmx-param\">\n <div class=\"pk\">\u6821\u9a8c\u4f4d<\/div>\n <div class=\"pv\">\u65e0<\/div>\n <\/div>\n <div class=\"dmx-param\">\n <div class=\"pk\">\u901a\u9053\u8303\u56f4<\/div>\n <div class=\"pv\">0 \uff5e 255<\/div>\n <\/div>\n <div class=\"dmx-param\">\n <div class=\"pk\">\u5efa\u8bae\u5237\u65b0\u7387<\/div>\n <div class=\"pv\">\u2265 30 fps<\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <p>\n \u6bcf\u4e2a\u901a\u9053\u6570\u503c <code>0x00<\/code>\uff080\uff09\u5bf9\u5e94 <strong>0% \u4eae\u5ea6<\/strong>\uff0c\n <code>0xFF<\/code>\uff08255\uff09\u5bf9\u5e94 <strong>100% \u4eae\u5ea6<\/strong>\uff0c\u7ebf\u6027\u63d2\u503c\u3002\n \u6bcf\u9897\u50cf\u7d20 IC \u901a\u5e38\u5360\u7528 3 \uff5e 4 \u4e2a\u901a\u9053\uff08RGB \u6216 RGBW\uff09\u3002\n <\/p>\n <\/section>\n\n <hr class=\"dmx-divider\">\n\n \n <section class=\"dmx-section\">\n <div class=\"dmx-section-head\">\n <div class=\"dmx-section-num\">4<\/div>\n <h2>\u5982\u4f55\u6b63\u786e\u63a5\u5165\u63a7\u5236\uff1f<\/h2>\n <\/div>\n\n <p>\n \u60a8\u9700\u8981\u4e00\u53f0\u80fd\u591f\u8f93\u51fa <strong>DMX512 \u534f\u8bae<\/strong>\u7684\u63a7\u5236\u5668\uff0c\u800c\u975e\u666e\u901a RS-485 \/ Modbus \u4e3b\u673a\u3002\n \u5e38\u89c1\u63a5\u5165\u6b65\u9aa4\u5982\u4e0b\uff1a\n <\/p>\n\n <div class=\"dmx-steps\">\n <div class=\"dmx-step\">\n <div class=\"dmx-step-num\">1<\/div>\n <div class=\"dmx-step-body\">\n <strong>\u9009\u62e9 DMX512 \u63a7\u5236\u5668<\/strong>\n <span>\u53ef\u9009 USB \u8f6c DMX \u63a7\u5236\u5668\u3001Art-Net \u7f51\u5173\u3001sACN \u7f51\u5173\u6216\u72ec\u7acb DMX \u4e3b\u673a\uff0c\u786e\u4fdd\u652f\u6301 DMX512 \u8f93\u51fa\u3002<\/span>\n <\/div>\n <\/div>\n <div class=\"dmx-step\">\n <div class=\"dmx-step-num\">2<\/div>\n <div class=\"dmx-step-body\">\n <strong>\u8fde\u63a5\u4fe1\u53f7\u7ebf<\/strong>\n <span>\u63a7\u5236\u5668 <code>A<\/code> \u63a5\u706f\u5e26 <code>A<\/code>\uff0c\u63a7\u5236\u5668 <code>B<\/code> \u63a5\u706f\u5e26 <code>B<\/code>\uff0c\u5e76\u786e\u4fdd\u63a7\u5236\u5668\u4e0e\u706f\u5e26\u7535\u6e90\u5171\u5730\uff08GND \u76f8\u8fde\uff09\u3002<\/span>\n <\/div>\n <\/div>\n <div class=\"dmx-step\">\n <div class=\"dmx-step-num\">3<\/div>\n <div class=\"dmx-step-body\">\n <strong>\u8bbe\u5b9a\u706f\u5e26\u8d77\u59cb\u5730\u5740<\/strong>\n <span>\u5728\u63a7\u5236\u5668\u8f6f\u4ef6\u4e2d\u4e3a\u706f\u5e26\u5206\u914d DMX \u8d77\u59cb\u901a\u9053\u5730\u5740\uff081 \uff5e 512\uff09\uff0c\u51b3\u5b9a\u8be5\u6bb5\u706f\u5e26\u54cd\u5e94\u54ea\u4e9b\u901a\u9053\u7684\u6570\u636e\u3002<\/span>\n <\/div>\n <\/div>\n <div class=\"dmx-step\">\n <div class=\"dmx-step-num\">4<\/div>\n <div class=\"dmx-step-body\">\n <strong>\u6309\u901a\u9053\u987a\u5e8f\u53d1\u9001\u6570\u636e<\/strong>\n <span>\u4ece\u8d77\u59cb\u5730\u5740\u5f00\u59cb\uff0c\u4f9d\u6b21\u5199\u5165 R \/ G \/ B\uff08\u6216 R \/ G \/ B \/ W\uff09\u901a\u9053\u7684\u4eae\u5ea6\u503c\uff0c\u5373\u53ef\u5b9e\u73b0\u5168\u5f69\u8c03\u5149\u63a7\u5236\u3002<\/span>\n <\/div>\n <\/div>\n <\/div>\n <\/section>\n\n <hr class=\"dmx-divider\">\n\n \n <section class=\"dmx-section\">\n <div class=\"dmx-section-head\">\n <div class=\"dmx-section-num\">5<\/div>\n <h2>\u5b89\u88c5\u6ce8\u610f\u4e8b\u9879<\/h2>\n <\/div>\n\n <div class=\"dmx-warn-grid\">\n <div class=\"dmx-warn-card warn-red\">\n <span class=\"dmx-warn-icon\">\u26d4<\/span>\n <div class=\"dmx-warn-title\">\u4e0d\u53ef\u4f7f\u7528\u666e\u901a Modbus \u4e3b\u673a<\/div>\n <p>DMX512 \u4e0e Modbus RTU \u5e27\u683c\u5f0f\u5b8c\u5168\u4e0d\u540c\uff0c\u4f7f\u7528\u666e\u901a RS-485 \u4e3b\u673a\u5c06\u65e0\u6cd5\u63a7\u5236\u706f\u5e26\uff0c\u5207\u52ff\u6df7\u7528\u3002<\/p>\n <\/div>\n <div class=\"dmx-warn-card warn-amber\">\n <span class=\"dmx-warn-icon\">\ud83d\udd0c<\/span>\n <div class=\"dmx-warn-title\">\u672b\u7aef\u9700\u63a5\u7ec8\u7aef\u7535\u963b<\/div>\n <p>\u8d70\u7ebf\u8ddd\u79bb\u8f83\u957f\u65f6\uff08\u901a\u5e38\u8d85\u8fc7 10 m\uff09\uff0c\u5e94\u5728\u603b\u7ebf\u672b\u7aef A\u3001B \u4e4b\u95f4\u63a5\u5165 <strong>120\u03a9 \u7ec8\u7aef\u7535\u963b<\/strong>\uff0c\u6d88\u9664\u4fe1\u53f7\u53cd\u5c04\u3002<\/p>\n <\/div>\n <div class=\"dmx-warn-card warn-blue\">\n <span class=\"dmx-warn-icon\">\ud83d\udccc<\/span>\n <div class=\"dmx-warn-title\">PI \u5f15\u811a\u6309\u9700\u8fde\u63a5<\/div>\n <p>PI\uff08\u50cf\u7d20\u7d22\u5f15\uff09\u5f15\u811a\u7528\u4e8e\u5730\u5740\u81ea\u52a8\u5206\u914d\u529f\u80fd\u3002\u82e5\u63a7\u5236\u7cfb\u7edf\u4e0d\u652f\u6301\u8be5\u529f\u80fd\uff0c\u53ef\u60ac\u7a7a\u4e0d\u63a5\u3002<\/p>\n <\/div>\n <\/div>\n <\/section>\n\n <hr class=\"dmx-divider\">\n\n \n <section class=\"dmx-section\">\n <div class=\"dmx-section-head\">\n <div class=\"dmx-section-num\">6<\/div>\n <h2>\u6807\u51c6\u5ba2\u6237\u56de\u590d\u53c2\u8003<\/h2>\n <\/div>\n\n <p>\u7ecf\u9500\u5546\u6216\u5de5\u7a0b\u96c6\u6210\u5546\u53ef\u53c2\u8003\u4ee5\u4e0b\u6a21\u677f\u5411\u6700\u7ec8\u7528\u6237\u89e3\u91ca\uff1a<\/p>\n\n <div class=\"dmx-reply\">\n <div class=\"dmx-reply-header\">\u6807\u51c6\u56de\u590d\u6a21\u677f<\/div>\n <blockquote class=\"dmx-reply-body\">\n \u60a8\u597d\uff01\u60a8\u7684\u7406\u89e3\u57fa\u672c\u6b63\u786e\u3002\u6211\u4eec\u7684 DMX512 \u706f\u5e26<strong>\u7269\u7406\u63a5\u53e3\u91c7\u7528 RS-485 \u6807\u51c6<\/strong>\n \uff08\u5373 A \/ B \u4e24\u6839\u5dee\u5206\u4fe1\u53f7\u7ebf\uff09\uff0c\u4f46\u63a7\u5236\u534f\u8bae\u662f <strong>DMX512 \u534f\u8bae<\/strong>\uff0c\u800c\u975e Modbus \u7b49\u901a\u7528 RS-485 \u534f\u8bae\u3002<br><br>\n \u56e0\u6b64\uff0c\u60a8\u9700\u8981\u4f7f\u7528\u652f\u6301 <strong>DMX512 \u8f93\u51fa<\/strong>\u7684\u63a7\u5236\u5668\u6765\u63a7\u5236\u706f\u5e26\u3002DMX512 \u534f\u8bae\u6ce2\u7279\u7387\u56fa\u5b9a\u4e3a\n <strong>250 Kbps<\/strong>\uff0c\u65e0\u5947\u5076\u6821\u9a8c\uff0c2 \u4f4d\u505c\u6b62\u4f4d\uff0c\u6570\u636e\u8303\u56f4 0x00 \uff5e 0xFF \u5bf9\u5e94 0% \uff5e 100% \u4eae\u5ea6 \/ \u8272\u503c\u3002<br><br>\n \u5982\u9700\u5b8c\u6574\u534f\u8bae\u89c4\u8303\uff0c\u53ef\u53c2\u8003\u56fd\u9645\u6807\u51c6 <strong>ANSI E1.11<\/strong>\u3002\n \u6211\u4eec\u4e5f\u53ef\u6839\u636e\u60a8\u6240\u7528\u7684\u50cf\u7d20 IC \u578b\u53f7\u63d0\u4f9b\u5bf9\u5e94\u901a\u9053\u5b9a\u4e49\u6587\u6863\uff0c\u6b22\u8fce\u8054\u7cfb\u6211\u4eec\u7684\u6280\u672f\u652f\u6301\u3002\n <\/blockquote>\n <\/div>\n <\/section>\n\n \n <div class=\"dmx-tags\">\n <span class=\"dmx-tag\">DMX512<\/span>\n <span class=\"dmx-tag\">RS-485<\/span>\n <span class=\"dmx-tag\">ANSI E1.11<\/span>\n <span class=\"dmx-tag\">LED Strip<\/span>\n <span class=\"dmx-tag\">\u706f\u5e26\u63a7\u5236<\/span>\n <span class=\"dmx-tag\">\u50cf\u7d20\u706f\u5e26<\/span>\n <span class=\"dmx-tag\">\u8f6f\u706f\u5e26<\/span>\n <span class=\"dmx-tag\">DMX\u63a7\u5236\u5668<\/span>\n <\/div>\n\n<\/article>\n\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>DMX512\u706f\u5e26\u4e0eRS-485\u534f\u8bae\u8be6\u89e3 \u6280\u672f\u6587\u6863 \u00b7 Technical Not…<\/p>\n","protected":false},"author":1,"featured_media":6984,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,15],"tags":[38,22,21],"post_series":[],"_links":{"self":[{"href":"https:\/\/www.nvled.com\/index.php?rest_route=\/wp\/v2\/posts\/6983"}],"collection":[{"href":"https:\/\/www.nvled.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nvled.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nvled.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nvled.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6983"}],"version-history":[{"count":3,"href":"https:\/\/www.nvled.com\/index.php?rest_route=\/wp\/v2\/posts\/6983\/revisions"}],"predecessor-version":[{"id":6988,"href":"https:\/\/www.nvled.com\/index.php?rest_route=\/wp\/v2\/posts\/6983\/revisions\/6988"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nvled.com\/index.php?rest_route=\/wp\/v2\/media\/6984"}],"wp:attachment":[{"href":"https:\/\/www.nvled.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nvled.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6983"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nvled.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6983"},{"taxonomy":"post_series","embeddable":true,"href":"https:\/\/www.nvled.com\/index.php?rest_route=%2Fwp%2Fv2%2Fpost_series&post=6983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":6983,"date":"2026-04-02T20:19:03","date_gmt":"2026-04-02T12:19:03","guid":{"rendered":"https:\/\/www.nvled.com\/?p=6983"},"modified":"2026-04-02T20:35:02","modified_gmt":"2026-04-02T12:35:02","slug":"dmx512-%e4%b8%8e-rs-485-%e7%9a%84%e5%85%b3%e7%b3%bb","status":"publish","type":"post","link":"https:\/\/www.nvled.com\/?p=6983","title":{"rendered":"DMX512 \u706f\u5e26\u4e0e\u00a0RS-485\u00a0\u534f\u8bae\u7a76\u7adf\u662f\u4ec0\u4e48\u5173\u7cfb\uff1f"},"content":{"rendered":"\n