{"id":11787,"date":"2023-02-13T19:30:44","date_gmt":"2023-02-13T11:30:44","guid":{"rendered":"https:\/\/www.modbus.cn\/?p=11787"},"modified":"2023-02-13T19:30:45","modified_gmt":"2023-02-13T11:30:45","slug":"modbusbuildrequest-han-shu-yuan-xing","status":"publish","type":"post","link":"https:\/\/www.modbus.cn\/en\/11787.html","title":{"rendered":"modbus_build_request\u51fd\u6570\u539f\u578b"},"content":{"rendered":"<p class=\"wp-block-paragraph\">modbus_build_request\u51fd\u6570\u662flibmodbus\u5e93\u4e2d\u7684\u4e00\u4e2a\u51fd\u6570\uff0c\u5176\u539f\u578b\u4e3a\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">int modbus_build_request(modbus_t *ctx, int function, int addr, int nb, uint8_t *req);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2d\uff0c\u53c2\u6570\u542b\u4e49\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>ctx<\/code>\uff1a\u6307\u5411modbus_t\u7ed3\u6784\u4f53\u7684\u6307\u9488\uff0c\u8868\u793a\u4f7f\u7528\u54ea\u4e2aModbus\u4e0a\u4e0b\u6587\u5bf9\u8c61\u3002<\/li>\n\n\n\n<li><code>function<\/code>\uff1a\u8868\u793a\u8bf7\u6c42\u7684Modbus\u51fd\u6570\u7801\u3002<\/li>\n\n\n\n<li><code>addr<\/code>\uff1a\u8868\u793a\u8bf7\u6c42\u7684\u5bc4\u5b58\u5668\u5730\u5740\u3002<\/li>\n\n\n\n<li><code>nb<\/code>\uff1a\u8868\u793a\u8bf7\u6c42\u7684\u5bc4\u5b58\u5668\u6570\u91cf\u3002<\/li>\n\n\n\n<li><code>req<\/code>\uff1a\u8868\u793a\u5b58\u50a8\u8bf7\u6c42\u6570\u636e\u7684\u7f13\u51b2\u533a\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u51fd\u6570\u8fd4\u56de\u503c\u4e3a\u8bf7\u6c42\u6570\u636e\u7684\u957f\u5ea6\uff0c\u5982\u679c\u8fd4\u56de\u503c\u5c0f\u4e8e0\uff0c\u5219\u8868\u793a\u51fa\u9519\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8be5\u51fd\u6570\u7528\u4e8e\u6784\u9020Modbus\u8bf7\u6c42\u62a5\u6587\uff0c\u5c06\u62a5\u6587\u6570\u636e\u5b58\u50a8\u5728\u7f13\u51b2\u533a\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528\u51fd\u6570\u5c06\u8bf7\u6c42\u62a5\u6587\u53d1\u9001\u51fa\u53bb\u3002\u5728\u6784\u9020\u8bf7\u6c42\u62a5\u6587\u65f6\uff0c\u53c2\u6570\u6307\u5b9a\u8bf7\u6c42\u7684Modbus\u51fd\u6570\u7801\uff0c\u53c2\u6570\u6307\u5b9a\u8bf7\u6c42\u7684\u5bc4\u5b58\u5668\u5730\u5740\uff0c\u53c2\u6570\u6307\u5b9a\u8bf7\u6c42\u7684\u5bc4\u5b58\u5668\u6570\u91cf\uff0c\u53c2\u6570\u4e3a\u5b58\u50a8\u8bf7\u6c42\u6570\u636e\u7684\u7f13\u51b2\u533a\u3002<code>req<\/code><code>modbus_send_raw_request<\/code><code>function<\/code><code>addr<\/code><code>nb<\/code><code>req<\/code><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<span id=\"magicpostMarker\"><\/span>","protected":false},"excerpt":{"rendered":"<p>modbus_build_request\u51fd\u6570\u662flibmodb&#8230;<\/p>","protected":false},"author":1,"featured_media":27977,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[691],"tags":[1083,1404,1308,1139,1495,1407],"class_list":["post-11787","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-modbus-code-base","tag-modbus","tag-1404","tag-1308","tag-1139","tag-1495","tag-1407"],"_links":{"self":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/11787","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/comments?post=11787"}],"version-history":[{"count":0,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/posts\/11787\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media\/27977"}],"wp:attachment":[{"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/media?parent=11787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/categories?post=11787"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.modbus.cn\/en\/wp-json\/wp\/v2\/tags?post=11787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}