1 Scope<\/b><\/p>\n
1.1 These requirements apply to non-networked embedded software residing in programmable components performing safety-related functions whose failure is capable of resulting in a risk of fire, electric shock, or injury to persons.<\/p>\n
1.2 This is a reference standard in which the requirements are to be applied when specifically referenced by other standards or product safety requirements.<\/p>\n
1.3 These requirements address the risks unique to product hardware controlled by software in programmable components.<\/p>\n
1.4 These requirements are intended to supplement applicable product or component standards and requirements, and are not intended to serve as the sole basis for investigating the risk of fire, electric shock, or injury to persons.<\/p>\n
1.5 These requirements are intended to address risks that occur in the software or in the process used to develop and maintain the software, such as the following:<\/p>\n
\na)\u00a0\u00a0\u00a0\u00a0Requirements conversion faults that cause differences between the specification for the programmable component and the software design;<\/p>\n
b)\u00a0\u00a0\u00a0\u00a0Design faults such as incorrect software algorithms or interfaces;<\/p>\n
c)\u00a0\u00a0\u00a0\u00a0Coding faults, including syntax, incorrect signs, endless loops, and other coding faults;<\/p>\n
d)\u00a0\u00a0\u00a0\u00a0Timing faults that cause program execution to occur prematurely or late;<\/p>\n
e)\u00a0\u00a0\u00a0\u00a0Microelectronic memory faults, such as memory failure, not enough memory, or memory overlap;<\/p>\n
f)\u00a0\u00a0\u00a0\u00a0Induced faults caused by microelectronic hardware failure;<\/p>\n
g)\u00a0\u00a0\u00a0\u00a0Latent, user, input\/output, range, and other faults that are only detectable when a given state occurs; and<\/p>\n
h)\u00a0\u00a0\u00a0\u00a0Failure of the programmable component to perform any function at all.<\/p>\n<\/blockquote>\n
1.6 Product standard requirements may amend or supersede the requirements in this standard, as appropriate.<\/p>\n
1.7 These requirements are not intended to address cybersecurity. Risks associated with unauthorized access or attack through a network shall be addressed in the product standard or other referenced standard such as the Standard for Software Cybersecurity for Network-Connectable Products, Part 1: General Requirements, UL 2900-1.<\/p>\n","protected":false},"excerpt":{"rendered":"
Standard for Software in Programmable Components<\/b><\/p>\n
\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n UL<\/b><\/a><\/td>\n 2018-09-24<\/td>\n 43<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":693357,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2680],"product_tag":[],"class_list":{"0":"post-693346","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ul","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/693346","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/693357"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=693346"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=693346"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=693346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}