请问下：使用RS232转RS485转换器时，如果不小心将485-A和485-B两根线碰在一起，会把转换器烧坏吗？ RS-485中的A和B是什么意思
RS485\u548cRS485\u7ebf\u600e\u4e48\u63a5rs485\u4e0e485\u901a\u8baf\uff0c\u63a5\u7ebf\u65b9\u6cd5\uff1a
RS-485\u91c7\u7528\u534a\u53cc\u5de5\u5de5\u4f5c\u65b9\u5f0f\uff0c\u652f\u6301\u591a\u70b9\u6570\u636e\u901a\u4fe1\u3002rs-485\u603b\u7ebf\u7f51\u7edc\u62d3\u6251\u7ed3\u6784\u4e00\u822c\u91c7\u7528\u7ec8\u7aef\u5339\u914d\u7684\u603b\u7ebf\u578b\u7ed3\u6784\u3002\u6362\u8a00\u4e4b\uff0c\u603b\u7ebf\u7528\u4e8e\u4e32\u8054\u8fde\u63a5\u6240\u6709\u8282\u70b9\uff0c\u4e0d\u652f\u6301\u73af\u5f62\u6216\u661f\u5f62\u7f51\u7edc\u3002
\u5982\u679c\u60a8\u9700\u8981\u4f7f\u7528\u661f\u578b\u7ed3\u6784\uff0c\u60a8\u5fc5\u987b\u4f7f\u7528485\u4e2d\u7ee7\u5668\u6216485\u96c6\u7ebf\u5668\u3002\u4e00\u822crs-485\u603b\u7ebf\u6700\u591a\u652f\u630132\u4e2a\u8282\u70b9\u3002\u5982\u679c\u4f7f\u7528\u4e00\u4e2a\u7279\u6b8a\u7684485\u82af\u7247\uff0c\u5b83\u53ef\u4ee5\u8fbe\u5230128\u6216256\u4e2a\u8282\u70b9\uff0c\u6700\u5927\u53ef\u4ee5\u652f\u6301400\u4e2a\u8282\u70b9\u3002
\u6269\u5c55\u8d44\u6599\uff1a
rs485\u5e03\u7ebf\u89c4\u8303
1\u3001485\u4fe1\u53f7\u7ebf\u4e0d\u80fd\u4e0e\u7535\u6e90\u7ebf\u8fde\u63a5\u3002\u5728\u5b9e\u9645\u65bd\u5de5\u4e2d\uff0c\u7531\u4e8e\u5e03\u7ebf\u90fd\u662f\u901a\u8fc7\u7ba1\u9053\u8fdb\u884c\u7684\uff0c\u65bd\u5de5\u65b9\u6709\u65f6\u4e3a\u4e86\u65b9\u4fbf\u7ed8\u56fe\uff0c\u5c06485\u4fe1\u53f7\u7ebf\u548c\u7535\u6e90\u7ebf\u76f4\u63a5\u7ed1\u5728\u4e00\u8d77\u3002\u7531\u4e8e\u5f3a\u7535\u6709\u5f3a\u7535\u78c1\u4fe1\u53f7\u5e72\u6270\u5f31\u7535\uff0c485\u4fe1\u53f7\u4e0d\u7a33\u5b9a\uff0c\u5bfc\u81f4\u901a\u4fe1\u4e0d\u7a33\u5b9a\u3002
2\u3001485\u4fe1\u53f7\u7ebf\u53ef\u91c7\u7528\u5c4f\u853d\u7ebf\u63a5\u7ebf\u6216\u975e\u5c4f\u853d\u7ebf\u63a5\u7ebf\u3002\u7531\u4e8e485\u4fe1\u53f7\u91c7\u7528\u5dee\u5206\u65b9\u5f0f\u4f20\u8f93\uff0c\u5373\u91c7\u7528485+\u4e0e485-\u4e4b\u95f4\u7684\u7535\u538b\u5dee\u4f5c\u4e3a\u4fe1\u53f7\u4f20\u8f93\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a
\u767e\u79d1\u767e\u79d1-rs485
RS-485 \u7528A\uff0cB\uff0c2\u6839\u7ebf\u6765\u4f20\u8f93\u5dee\u5206\u4fe1\u53f7\uff0cA\u63a5\u53e3DATA+\uff0cB\u63a5\u53e3DATA-\u3002
RS-485\u53c8\u540dTIA-485-A, ANSI/TIA/EIA-485\u6216TIA/EIA-485\u3002RS485\u4e00\u4e2a\u5b9a\u4e49\u5e73\u8861\u6570\u5b57\u591a\u70b9\u7cfb\u7edf\u4e2d\u7684\u9a71\u52a8\u5668\u548c\u63a5\u6536\u5668\u7684\u7535\u6c14\u7279\u6027\u7684\u6807\u51c6\uff0c\u8be5\u6807\u51c6\u7531\u7535\u4fe1\u884c\u4e1a\u534f\u4f1a\u548c\u7535\u5b50\u5de5\u4e1a\u8054\u76df\u5b9a\u4e49\u3002
\u4f7f\u7528\u8be5\u6807\u51c6\u7684\u6570\u5b57\u901a\u4fe1\u7f51\u7edc\u80fd\u5728\u8fdc\u8ddd\u79bb\u6761\u4ef6\u4e0b\u4ee5\u53ca\u7535\u5b50\u566a\u58f0\u5927\u7684\u73af\u5883\u4e0b\u6709\u6548\u4f20\u8f93\u4fe1\u53f7\u3002RS-485\u4f7f\u5f97\u5ec9\u4ef7\u672c\u5730\u7f51\u7edc\u4ee5\u53ca\u591a\u652f\u8def\u901a\u4fe1\u94fe\u8def\u7684\u914d\u7f6e\u6210\u4e3a\u53ef\u80fd\u3002
RS485\u6709\u4e24\u7ebf\u5236\u548c\u56db\u7ebf\u5236\u4e24\u79cd\u63a5\u7ebf\uff0c\u56db\u7ebf\u5236\u53ea\u80fd\u5b9e\u73b0\u70b9\u5bf9\u70b9\u7684\u901a\u4fe1\u65b9\u5f0f\uff0c\u73b0\u5f88\u5c11\u91c7\u7528\uff0c\u73b0\u5728\u591a\u91c7\u7528\u7684\u662f\u4e24\u7ebf\u5236\u63a5\u7ebf\u65b9\u5f0f\uff0c\u8fd9\u79cd\u63a5\u7ebf\u65b9\u5f0f\u4e3a\u603b\u7ebf\u5f0f\u62d3\u6251\u7ed3\u6784\uff0c\u5728\u540c\u4e00\u603b\u7ebf\u4e0a\u6700\u591a\u53ef\u4ee5\u6302\u63a532\u4e2a\u8282\u70b9\u3002
\u5728RS485\u901a\u4fe1\u7f51\u7edc\u4e2d\u4e00\u822c\u91c7\u7528\u7684\u662f\u4e3b\u4ece\u901a\u4fe1\u65b9\u5f0f\uff0c\u5373\u4e00\u4e2a\u4e3b\u673a\u5e26\u591a\u4e2a\u4ece\u673a\u3002\u5f88\u591a\u60c5\u51b5\u4e0b\uff0c\u8fde\u63a5RS-485\u901a\u4fe1\u94fe\u8def\u65f6\u53ea\u662f\u7b80\u5355\u5730\u7528\u4e00\u5bf9\u53cc\u7ede\u7ebf\u5c06\u5404\u4e2a\u63a5\u53e3\u7684\u201cA\u201d\u3001\u201cB\u201d\u7aef\u8fde\u63a5\u8d77\u6765\u3002
\u6269\u5c55\u8d44\u6599
\u63a5\u53e3\u7684\u4fe1\u53f7\u5185\u5bb9 \u5b9e\u9645\u4e0aRS-232-C\u768425\u6761\u5f15\u7ebf\u4e2d\u6709\u8bb8\u591a\u662f\u5f88\u5c11\u4f7f\u7528\u7684\uff0c\u5728\u8ba1\u7b97\u673a\u4e0e\u7ec8\u7aef\u901a\u8baf\u4e2d\u4e00\u822c\u53ea\u4f7f\u75283-9\u6761\u5f15\u7ebf\u3002
\u63a5\u53e3\u7684\u7535\u6c14\u7279\u6027\u5728RS-232-C\u4e2d\u4efb\u4f55\u4e00\u6761\u4fe1\u53f7\u7ebf\u7684\u7535\u538b\u5747\u4e3a\u8d1f\u903b\u8f91\u5173\u7cfb\u3002\u5373\uff1a\u903b \u8f91\u201c1\u201d\uff0c-5\u2014 -15V\uff1b\u903b\u8f91\u201c0\u201d +5\u2014 +15V \u3002\u566a\u58f0\u5bb9\u9650\u4e3a2V\u3002\u5373\u8981\u6c42\u63a5\u6536\u5668\u80fd\u8bc6\u522b\u4f4e\u81f3+3V\u7684\u4fe1\u53f7\u4f5c\u4e3a\u903b\u8f91\u201c0\u201d\uff0c\u9ad8\u5230-3V\u7684\u4fe1\u53f7\u4f5c\u4e3a\u903b\u8f91\u201c1\u201d\u3002
\u63a5\u53e3\u7684\u7269\u7406\u7ed3\u6784 RS-232-C\u63a5\u53e3\u8fde\u63a5\u5668\u4e00\u822c\u4f7f\u7528\u578b\u53f7\u4e3aDB-25\u768425\u82af\u63d2\u5934\u5ea7,\u901a\u5e38\u63d2\u5934\u5728DCE\u7aef\uff0c\u63d2\u5ea7\u5728DTE\u7aef\u4e00\u4e9b\u8bbe\u5907\u4e0ePC\u673a\u8fde\u63a5\u7684RS-232-C\u63a5\u53e3\u3002
\u56e0\u4e3a\u4e0d\u4f7f\u7528\u5bf9\u65b9\u7684\u4f20\u9001\u63a7\u5236\u4fe1\u53f7\uff0c\u53ea\u9700\u4e09\u6761\u63a5\u53e3\u7ebf,\u5373\u201c\u53d1\u9001\u6570\u636e\u201d\uff0c\u201c\u63a5\u6536\u6570\u636e\u201d\u548c\u201c\u4fe1\u53f7\u5730\u201d\u3002\u6240\u4ee5\u91c7\u7528DB-9\u76849\u82af\u63d2\u5934\u5ea7\uff0c\u4f20\u8f93\u7ebf\u91c7\u7528\u5c4f\u853d\u53cc\u7ede\u7ebf\u3002
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1-RS-485
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1-\u901a\u4fe1\u63a5\u53e3
时间长了 就不好说！
尽量避免吧
其实，应该确保连接无误的时候 再接通电源
请看 武汉鸿伟光电
E485B RS232/RS485有源隔离转换器
肯定不会
不会
绛旓細RS232 闄愪簬15绫充互鍐呫俁S-232鍗忚鐞嗚浼犺緭璺濈鏄10绫 RS-485鍗忚鐞嗚浼犺緭璺濈鏄1000绫炽俁S485鏈澶ф棤涓户浼犺緭璺濈涓1200绫(閲囩敤闃绘姉鐩稿尮閰嶃佷綆琛板噺鐨勪笓鐢ㄧ數缂嗗彲绐佺牬姝ゅ)锛岃秴杩囬渶鍔犱腑缁у櫒锛屾渶澶氫笉瓒呰繃8鍙紝鍗9600绫炽RS-232杞琑S485閫氳鏈澶ц窛绂绘槸1200绫筹紝杩欎釜鍙渶瑕佷拱涓涓浆鎹㈠櫒灏卞彲浠ヨ揪鍒拌繖绉嶉氳瑕...
绛旓細4銆 浣跨敤RS485鑱旀満鏃讹紝闇鍏浣跨敤RS232閫氳鑷抽┈杈撅紝鍐欏叆浠ヤ笅绋嬪簭鏂瑰彲鎵цRS485鑱旀満鍔熻兘锛岀▼搴忎唬鐮佸涓嬶細SADDR1OCHN(RS4,1,N,9600,1,8,C)END鏈鍚庡啀鎼厤RS-232 杞琑S-485杞崲鍣ㄥ嵆鍙氳銆
绛旓細4銆佷綘闂RS232杞琑S485/422鏄共浠涔堢殑锛屾垜鍙兘璇存槸鎺ュ彛杞崲鐢鐨勶紝鑷充簬涓轰綍杞崲涓婅堪2銆3鍧囨湁瑙ｉ噴锛屼妇渚嬭锛屼綘鐨勪笂浣嶆満锛圥C鎴栧叾瀹冧汉鏈猴級鍚10涓狿LC閫氳锛岃鐢232锛屽緱闇瑕10涓彛锛堜簨瀹炰笂娌″偦鐡滈偅鏍风敤锛夛紝鑰岀敤485鍙渶瑕佷竴涓猚om鍙ｅ垎绔欑偣缁勭幆缃戝嵆鍙備絾鏄亣濡備綘鐨凱LC涔熸病鏈485鍙ｏ紝鑰屽彧鏄232鏃讹紝浣犺繕闇瑕...
绛旓細4銆佹姉骞叉壈鑳藉姏 鐢变簬RS485鎺ュ彛閲囩敤宸垎椹卞姩锛屽洜姝ゅ畠姣RS232鍏锋湁鏇村ソ鐨勬姉骞叉壈鑳藉姏銆傚湪澶嶆潅鐨勫伐涓氱幆澧冧腑锛孯S485鏇磋兘澶熶繚璇侀氫俊鐨勭ǔ瀹氭с5銆佸弻鍚戦氫俊 RS485鎺ュ彛鏀寔鍙屽悜閫氫俊锛岃孯S232鎺ュ彛鍙兘瀹炵幇鍗曞悜閫氫俊銆傝繖鎰忓懗鐫浣跨敤RS485鎺ュ彛杩涜閫氫俊鏃讹紝鍙戦佸拰鎺ユ敹鏁版嵁閮藉彲浠ュ湪鍚屼竴鏍圭嚎涓婅繘琛屻6銆佽繛鎺ユ柟寮 RS232鎺ュ彛鍙...
绛旓細浣犵殑杩欑鎯呭喌锛屽彲浠ョ敤涓ょ鏂规硶鏉ヨВ鍐筹細1銆浣犳墍璇寸殑缁堢璁惧鍙互鏀寔RS-485鐨勮瘽锛屼綘鐩存帴璐拱涓涓猂S-232杞琑S-485鐨勮浆鎹㈠櫒锛屾妸RS-485绔寜鐓ц鏄庝功鎺ョ粓绔澶囷紝RS-485鍙鎺ヤ袱鏍圭嚎灏卞彲浠ヤ簡锛屼綘鍙鎵惧嚭485+,485-涓ゆ牴绾垮氨鍙互浜嗐2.濡傛灉浣犲疄鍦ㄦ槸鎼炰笉瀹氶偅涓猂S-485鐨勮瘽锛屼綘灏辩敤涓や釜RS-232杞琑S-422鐨...
绛旓細RS232-485杞崲鍣ㄤ富瑕佸寘鎷簡鐢垫簮銆 232鐢靛钩杞崲銆485鐢佃矾涓夐儴鍒嗐傛湰鐢佃矾鐨232鐢靛钩杞崲鐢佃矾閲囩敤浜哊IH232鎴栬呬篃鍙互鐩存帴浣跨敤MAX232闆嗘垚鐢佃矾锛485鐢佃矾閲囩敤浜 MAX485闆嗘垚鐢佃矾銆備负浜嗕娇鐢ㄦ柟渚匡紝鐢垫簮閮ㄥ垎璁捐鎴愭棤婧愭柟寮忥紝鏁翠釜鐢佃矾鐨勪緵鐢电洿鎺ヤ粠PC鏈虹殑RS232鎺ュ彛涓殑DTR锛4鑴氾級鍜孯TS锛7鑴氾級绐冨彇銆 PC涓插彛姣忔牴绾垮彲浠ユ彁渚...
绛旓細浣犻噰鐢 鐨 RS232杞琑S485杞崲鍣 鏄 鏈夋簮 杩樻槸 鏃犳簮锛熼氬父 鏃犳簮 杞崲鍣ㄧ殑璇濓紝瑕佷粠 RS232 杩欑 鑾峰彇 鐢垫簮锛屽鏋 鏄薄鐢佃剳涓插彛閲嶈鐨 RS232 搴旇娌℃湁浠涔堥棶棰橈紝濡傛灉鏄 绠鍖栫殑 RS232 5绾挎垨鑰3绾匡紝灏辨棤娉 鑾峰彇 鐢垫簮锛屼篃灏辨棤娉曟甯稿伐浣滐紒杩樻湁锛屾暟鎹噰闆嗚澶囦笌娴嬭瘯璁惧 杩炴帴鐨 鎯呭喌 涓 鍗曠嫭 娴嬭瘯 ...
绛旓細鎴戠煡閬撶殑rs485鐢鐨勫氨鏄2鏍圭嚎锛
绛旓細RS485杞崲鍣ㄦ槸鎺ュ彛涓虹鍚圗IA RS-232锛孯S-485锛孯S-422鏍囧噯鐨勪竴娆捐浆鎹㈠櫒銆傜被鍒細1銆 鏃犳簮涓插彛RS232杞琑S485杞崲鍣ㄣ2銆 鏈夋簮涓插彛RS232杞琑S485杞崲鍣ㄣ3銆 鏃犳簮鍏夌數闅旂涓插彛RS232杞琑S485杞崲鍣ㄣ4銆 鏈夋簮鍏夌數闅旂涓插彛RS232杞琑S485杞崲鍣ㄣ5銆 甯﹀湴鍧RS232杞琑S485鍏夌數闅旂涓插彛杞崲鍣ㄣ
绛旓細1銆佺畝鍗曠殑璇RS232鏄叏鍙屽伐鐨勶紝RS485鏄崐鍙屽伐鐨勶紝RS422鏄叏鍙屽伐鐨勩2銆RS-232-C鏍囧噯瑙勫畾鐨勬暟鎹紶杈撻熺巼涓50銆75銆100銆150銆300銆600銆1200銆2400銆4800銆9600銆19200銆38400娉㈢壒 3銆丷S-485鐨勬暟鎹渶楂樹紶杈撻熺巼涓10Mbps锛屾渶澶х殑閫氫俊璺濈绾︿负1219M锛屼紶杈撻熺巼涓庝紶杈撹窛绂绘垚鍙嶆瘮锛屽湪10Kb/S鐨勪紶杈撻熺巼涓...
