"# \u4ec0\u4e48\u662f\u6a21\u62df\u91cf\uff1f\u6a21\u62df\u91cf\u5e94\u7528\u573a\u666f\u53ca\u7ec4\u6210\n\n> 2022-03-12 | 2024-05-07\n> https:\/\/www.modbus.cn\/en\/6661.html\n\n**Modbus\u76f8\u5173\u6587\u7ae0**\n\n---\n\n\u5728\u5de5\u4e1a\u751f\u4ea7\u63a7\u5236\u8fc7\u7a0b\u4e2d\uff0c\u7279\u522b\u662f\u5728\u8fde\u7eed\u578b\u7684\u751f\u4ea7\u8fc7\u7a0b\u4e2d\uff0c\u7ecf\u5e38\u4f1a\u8981\u6c42\u5bf9\u4e00\u4e9b\u7269\u7406\u91cf\u5982\u5e38\u89c1\u7684\uff1a\u7535\u538b\u3001\u7535\u6d41\u3001\u538b\u529b\u3001\u901f\u5ea6\u3001\u6d41\u91cf\u7b49\u8fdb\u884c\u91c7\u96c6\u63a7\u5236\u65f6\uff0c\u8fd9\u4e9b\u7269\u7406\u91cf\u5b83\u4eec\u90fd\u662f\u968f\u65f6\u95f4\u800c\u8fde\u7eed\u53d8\u5316\u7684\u3002\u5728\u63a7\u5236\u9886\u57df\u628a\u8fd9\u4e9b\u968f\u65f6\u95f4\u8fde\u7eed\u53d8\u5316\u7684\u7269\u7406\u91cf\u53eb\u6a21\u62df\u91cf\u3002\n\n**\u6211\u4eec\u5728\u4f7f\u7528\u6a21\u62df\u91cf\u7684\u65f6\u5019\uff0c\u9996\u5148\u8981\u4e86\u89e3\u51e0\u79cd\u8bbe\u5907\uff1a**\n\n\u4f20\u611f\u5668\u3001\u53d8\u9001\u5668\u3001A\/D\u8f6c\u6362\u5668\u3001D\/A\u8f6c\u6362\u5668\u7b49\u3002\n\n## **\u4f20\u611f\u5668**\n\n\u5b83\u662f\u5b9e\u73b0\u81ea\u52a8\u68c0\u6d4b\u548c\u81ea\u52a8\u63a7\u5236\u7684\u9996\u8981\u73af\u8282\u3002\u4f20\u611f\u5668\u7684\u5b58\u5728\u548c\u53d1\u5c55\uff0c\u8ba9\u7269\u4f53\u6709\u4e86\u89e6\u89c9\u3001\u5473\u89c9\u548c\u55c5\u89c9\u7b49\u611f\u5b98\uff0c\u8ba9\u7269\u4f53\u6162\u6162\u53d8\u5f97\u6d3b\u4e86\u8d77\u6765\u3002\n\n\u5e38\u7528\u7684\u6709\u6e29\u5ea6\u4f20\u611f\u5668\u3001\u538b\u529b\u4f20\u611f\u5668\u3001\u6e7f\u5ea6\u4f20\u611f\u5668\u7b49\u3002\n\n## **\u53d8\u9001\u5668**\n\n\u53d8\u9001\u5668\u662f\u628a\u4f20\u611f\u5668\u7684\u8f93\u51fa\u4fe1\u53f7\u8f6c\u53d8\u4e3a\u53ef\u88ab\u63a7\u5236\u5668\u8bc6\u522b\u7684\u4fe1\u53f7\uff08\u6216\u5c06\u4f20\u611f\u5668\u8f93\u5165\u7684\u975e\u7535\u91cf\u8f6c\u6362\u6210\u7535\u4fe1\u53f7\u540c\u65f6\u653e\u5927\u4ee5\u4fbf\u4f9b\u8fdc\u65b9\u6d4b\u91cf\u548c\u63a7\u5236\u7684\u4fe1\u53f7\u6e90\uff09\u7684\u8f6c\u6362\u5668\u3002\u4f20\u611f\u5668\u548c\u53d8\u9001\u5668\u4e00\u540c\u6784\u6210\u81ea\u52a8\u63a7\u5236\u7684\u76d1\u6d4b\u4fe1\u53f7\u6e90\u3002\n\n## A\/D\u8f6c\u6362\u5668\n\n\u5c06\u6a21\u62df\u4fe1\u53f7\u8f6c\u6362\u6210\u6570\u5b57\u4fe1\u53f7\u7684\u7535\u8def\uff0c\u79f0\u4e3a\u6a21\u6570\u8f6c\u6362\u5668\uff08\u7b80\u79f0a\/d\u8f6c\u6362\u5668\uff09\uff0cA\/D\u8f6c\u6362\u7684\u4f5c\u7528\u662f\u5c06\u65f6\u95f4\u8fde\u7eed\u3001\u5e45\u503c\u4e5f\u8fde\u7eed\u7684\u6a21\u62df\u91cf\u8f6c\u6362\u4e3a\u65f6\u95f4\u79bb\u6563\u3001\u5e45\u503c\u4e5f\u79bb\u6563\u7684\u6570\u5b57\u4fe1\u53f7\uff0c\u56e0\u6b64\uff0cA\/D\u8f6c\u6362\u4e00\u822c\u8981\u7ecf\u8fc7\u53d6\u6837\u3001\u4fdd\u6301\u3001\u91cf\u5316\u53ca\u7f16\u78014\u4e2a\u8fc7\u7a0b\u3002\u5728\u5b9e\u9645\u7535\u8def\u4e2d\uff0c\u8fd9\u4e9b\u8fc7\u7a0b\u6709\u7684\u662f\u5408\u5e76\u8fdb\u884c\u7684\uff0c\u4f8b\u5982\uff0c\u53d6\u6837\u548c\u4fdd\u6301\uff0c\u91cf\u5316\u548c\u7f16\u7801\u5f80\u5f80\u90fd\u662f\u5728\u8f6c\u6362\u8fc7\u7a0b\u4e2d\u540c\u65f6\u5b9e\u73b0\u7684\u3002\n\n## D\/A\u8f6c\u6362\u5668\n\nD\/A\u8f6c\u6362\u5668\uff0c\u53c8\u79f0\u6570\u6a21\u8f6c\u6362\u5668\uff0c\u7b80\u79f0DAC\u3002\u4e00\u79cd\u5c06\u4e8c\u8fdb\u5236\u6570\u5b57\u91cf\u5f62\u5f0f\u7684\u79bb\u6563\u4fe1\u53f7\u8f6c\u6362\u6210\u4ee5\u6807\u51c6\u91cf\uff08\u6216\u53c2\u8003\u91cf\uff09\u4e3a\u57fa\u51c6\u7684\u6a21\u62df\u91cf\u7684\u8f6c\u6362\u5668\uff0c\u4f5c\u7528\u662f\u628a\u6570\u5b57\u91cf\u8f6c\u53d8\u6210\u6a21\u62df\u7684\u5668\u4ef6\u3002\n\n## \u6a21\u62df\u91cf\u8f93\u5165\uff08AI\uff09\n\n\uff08\u53734-20mA\u62160-10V\u7684\u7535\u6d41\u6216\u7535\u538b\u4fe1\u53f7\uff0c\u8f93\u5165\u5230DCS\u4e2d\uff0c\u7ecf\u8fc7\u53d8\u6362\uff0c\u8fd8\u539f\u51fa\u539f\u6765\u7684\u503c\uff09\n\n## \u6a21\u62df\u91cf\u8f93\u51fa\uff08AO\uff09\n\n\uff08AO\u662fDCS\u8f93\u51fa4-20mA\u62160-10V\u4fe1\u53f7\uff0c\u53bb\u63a7\u5236\u8bbe\u5907\u7684\u8fd0\u884c\u53c2\u6570\uff09\n\n## \u5e38\u89c1\u7684\u6a21\u62df\u91cf\u8f93\u5165\/\u8f93\u51fa\u4fe1\u53f7\uff1a\n\n4-20mA\u30010-10mA\u30011-5V\u30010-5V\u30010-10V\n\n\u5176\u5b9e\u5c31\u662f\u662f\u7535\u538b\u3001\u7535\u6d41\u53d8\u5316\u3002\n\n\u5e38\u7528\u7684\u7535\u538b\u8303\u56f4\uff1a0~10V\uff0c-10~+10V\uff0c0~5V\uff0c-5V~+5V\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u662f0~10V\u7684\u7535\u538b\u4fe1\u53f7\u3002\n\n\u5e38\u7528\u7684\u7535\u6d41\u8303\u56f4\uff1a0~20mA\uff0c4~20mA\uff0c-20mA~+20mA\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u662f4~20mA\u7684\u7535\u6d41\u4fe1\u53f7\u3002\n\n## \u5e94\u7528\u9886\u57df\n\n\u6a21\u62df\u91cf\u6709\u8bb8\u591a\u7684\u5e94\u7528\u9886\u57df\uff0c\u6bd4\u5982\u697c\u5b87\u81ea\u52a8\u5316\u3001\u73af\u5883\u76d1\u6d4b\u3001\u5de5\u5382\u81ea\u52a8\u5316\u548c\u667a\u80fd\u4ea4\u901a\u7b49\uff1b\n\n\u73af\u5883\u76d1\u6d4b\uff1a\u4e8c\u6c27\u5316\u78b3\u6d53\u5ea6\u76d1\u6d4b\u3001\u6c27\u6c14\u6d53\u5ea6\u76d1\u6d4b\u3001\u70df\u96fe\u6d53\u5ea6\u76d1\u6d4b\u3001\u6c34\u8d28\u76d1\u6d4b\u7b49\u3002\n\n#### \u4e3a\u4ec0\u4e48\u90fd\u628a\u6a21\u62df\u91cf\u4fe1\u53f7\u8f6c\u6362\u62104-20mA\u7684\u7535\u6d41\u4fe1\u53f7\uff0c\u800c\u4e0d\u662f0-20mA\u7684\u7535\u6d41\u4fe1\u53f7\u62160-10V\u7684\u7535\u538b\u4fe1\u53f7\uff1f\n\n\uff081\uff090-10V\u7684\u7535\u538b\u4fe1\u53f7\u5bb9\u6613\u53d7\u5230\u5916\u754c\u7684\u7535\u78c1\u5e72\u6270\uff0c\u7279\u522b\u662f\u7535\u7f06\u957f\u5ea6\u5f88\u957f\u65f6\u5e72\u6270\u66f4\u660e\u663e\u3002\n\n\uff082\uff09\u75280-20mA\u7684\u7535\u6d41\u4fe1\u53f7\u7684\u8bdd\uff0c\u5c31\u65e0\u6cd5\u5224\u65ad\u5728\u7535\u6d41\u4fe1\u53f7\u662f0mA\u65f6\uff0c\u5230\u5e95\u662f\u7535\u7f06\u65ad\u7ebf\u5f15\u8d77\u7684\u6545\u969c0mA\uff0c\u8fd8\u662f\u538b\u529b\u672c\u8eab\u5c31\u662f0kpa\u800c\u8f93\u51fa\u7684\u6b63\u5e38\u76840mA\u3002\n\n---\n*modbus.cn*\n"