{"id":3291,"date":"2021-12-25T01:25:12","date_gmt":"2021-12-25T09:25:12","guid":{"rendered":"https:\/\/wonghoi.humgar.com\/blog\/?p=3291"},"modified":"2021-12-25T01:25:13","modified_gmt":"2021-12-25T09:25:13","slug":"rs-232-stop-bits-in-agilent-instruments","status":"publish","type":"post","link":"https:\/\/wonghoi.humgar.com\/blog\/2021\/12\/25\/rs-232-stop-bits-in-agilent-instruments\/","title":{"rendered":"RS-232 Stop Bits in Agilent Instruments"},"content":{"rendered":"\n

Turns out Agilent instruments do not use the same defaults for the RS-232 in their instruments. <\/p>\n\n\n\n

54600 series uses 1 stop <\/strong>bits (most common):<\/p>\n\n\n\n

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RS-232 modules used in old 54600 series<\/figcaption><\/figure>\n\n\n\n
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54620\/54640 series (newer 54600 series)<\/figcaption><\/figure>\n\n\n\n

However other bench instruments such as power supplies (E3640 series 663X series) and 33120A arbitrary waveform generator uses 2 stop bits (fixed<\/strong> regardless of parity), which is usually NOT THE DEFAULT for most terminal clients:<\/p>\n\n\n\n

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E3640 series and 33120A’s RS-232 configuration.
Parity only trade away one data bit, so it does not affect stop bit<\/figcaption><\/figure>\n\n\n\n
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663X series powers supplies’ programming manual aren’t explicit about that except in code example<\/figcaption><\/figure>\n
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Turns out Agilent instruments do not use the same defaults for the RS-232 in their instruments. 54600 series uses 1 stop bits (most common): However other bench instruments such as power supplies (E3640 series 663X series) and 33120A arbitrary waveform … Continue reading →<\/span><\/a><\/p>\n

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