{"id":3371,"date":"2025-04-18T05:45:22","date_gmt":"2025-04-18T05:45:22","guid":{"rendered":"https:\/\/webprojects.cloud\/wordpress\/splatco\/?post_type=spl_knowledgebase&p=3371"},"modified":"2025-06-10T11:00:50","modified_gmt":"2025-06-10T11:00:50","slug":"simplehmi-programming-beyond-the-hash","status":"publish","type":"spl_knowledgebase","link":"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/tutorials-application-notes-and-white-papers\/tutorial-simplehmi-programming-of-splat-controllers\/simplehmi-programming-beyond-the-hash\/","title":{"rendered":"SimpleHMI: Programming beyond the hash"},"content":{"rendered":"\n

The hash commands and function provided in support of SimpleHMI<\/a> will cover most of what you would or could do with SimpleHMI. However, there may be times when you need a little bit more.<\/p>\n\n\n\n

The most likely case is that you want to display text in a form not catered for by hash functions. This page will tell you what to do.<\/p>\n\n\n\n

When text is sent to SimpleHMI for display, it is wrapped in a “datagram” or packet with the following content:<\/p>\n\n\n\n

'01,\"@\",\"Your text\",'03<\/pre>\n\n\n\n
The '01<\/code> (one character containing hex 01) signals the start of a command to SimpleHMI. The “@<\/code>” is the command to SimpleHMI to display text. The '03<\/code> at the end signals the end of the text to display, and the end of this command to SimpleHMI.<\/p>\n\n\n\n
Example:<\/p>\n\n\n\n
Position the cursor at (5,10), print a label and the contents of\u00a0X<\/a>\u00a0as a signed decimal number:<\/p>\n\n\n\n
#       HMI<\/a> Cursor(5,10) Print(\"X =\")
        iiPrintText     251,'01,\"@\"     ;\"Header\" of a text display command to SimpleHMI
;vvvvvvvvvv
        iisPrintXFW     251             ;251 is the serial port
;^^^^^^^^^^
        iiPrintText     251,'03         ;SimpleHMI command terminator<\/pre>\n\n\n\n
Between the ;vvvvv<\/code> and ;^^^^^^<\/code> markers you can have anything you like that results in characters coming out of the serial port, so long as no character code is less than '20<\/code> (which might scramble the display).<\/p>\n","protected":false},"excerpt":{"rendered":"
The hash commands and function provided in support of SimpleHMI will cover most of what you would or could do with SimpleHMI. However, there may be times…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3355,"menu_order":12,"template":"","class_list":["post-3371","spl_knowledgebase","type-spl_knowledgebase","status-publish","hentry"],"acf":[],"yoast_head":"\nSimpleHMI: Programming beyond the hash - SPLat Controls<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SimpleHMI: Programming beyond the hash - SPLat Controls\" \/>\n<meta property=\"og:description\" content=\"The hash commands and function provided in support of SimpleHMI will cover most of what you would or could do with SimpleHMI. 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