{"id":4057,"date":"2019-02-12T16:21:55","date_gmt":"2019-02-12T16:21:55","guid":{"rendered":"https:\/\/cyflexdoc.wpengine.com\/usage-help-manual\/12-fluid-flow-computations\/urea_flow\/"},"modified":"2025-08-26T11:24:57","modified_gmt":"2025-08-26T16:24:57","slug":"urea_flow","status":"publish","type":"page","link":"https:\/\/cyflex.com\/index.php\/usage-help-manual\/19-fluid-flow-computations\/urea_flow\/","title":{"rendered":"urea_flow"},"content":{"rendered":"
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Purpose:<\/h3>\n<\/div>\n
\n
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Collect and process urea flow data, including monitoring total flow and handling fault events in a continuous background service.<\/p>\n<\/dd>\n<\/dl>\n

Enter:<\/h3>\n
\n
\n

urea_flow<\/strong> &<\/p>\n<\/dd>\n<\/dl>\n

Where:<\/h3>\n
\n
\n
\n\n\n\n<\/colgroup>\n\n\n
N\/A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/dd>\n<\/dl>\n

Example:<\/h3>\n
\n
\n

 <\/p>\n<\/dd>\n<\/dl>\n

Notes:<\/h3>\n
\n
\n

This command is normally placed in \/cell\/go.scp so that it runs all of the time.<\/p>\n

The configuration file “\/specs\/urea_flow.cfg” file must exist.<\/p>\n

A copy of the urea_flow.cfg file is located in cyflex\/specs.def at CTC and in cyflex\/specs.def at “cmxnode1”<\/p>\n

The following variables will be created:<\/p>\n

REAL urea_total (the total flow in gallons)<\/p>\n

LOGICAL label meaning urea_flt_bit1 ?<\/p>\n

urea_flt_bit2 ?<\/p>\n

urea_flt_bit3 fill valve #2 failing<\/p>\n

urea_flt_bit4 fill valve #1 failing<\/p>\n

urea_flt_bit5 totalized reading out of range<\/p>\n

urea_flt_bit6 flow meter not operating<\/p>\n

urea_flt_bit7 holding tank did not fill<\/p>\n

urea_flt_bit8 holding tank overfill<\/p>\n

Each LOGICAL variable has a \u2018TRUE\u2019 transition event associated with it that will be set when the state changes from FALSE to TRUE.<\/p>\n

variable TRUE transition event urea_flt_bit1 urea_flt1<\/p>\n

urea_flt_bit2 urea_flt2<\/p>\n

urea_flt_bit3 urea_flt3<\/p>\n

urea_flt_bit4 urea_flt4<\/p>\n

urea_flt_bit5 urea_flt5<\/p>\n

urea_flt_bit6 urea_flt6<\/p>\n

urea_flt_bit7 urea_flt7<\/p>\n

urea_flt_bit8 urea_flt8<\/p>\n

The following event will be created by the application and will be set if there is a comm loss.<\/p>\n

urea_comm_loss<\/p>\n

The total volume value, “urea_total”, is stored on disk in the file \/data\/save_parameters. If a “go” is performed or the “urea_flow” task is restarted, that value will be restored, thus allowing the value to be a running total regardless of whether the task is stopped and restarted.<\/p>\n

Should the total value need to be reset, the “urea_flow” task will need to be slayed, then use “svar urea_total” to reset the value, followed by a re-start of the application.<\/p>\n<\/dd>\n<\/dl>\n

See Also:<\/h3>\n
\n
\n

Diesel Exhaust Fluid (DEF) Metering<\/a><\/p>\n<\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"

Purpose: Collect and process urea flow data, including monitoring total flow and handling fault events in a continuous background service. Enter: urea_flow & Where: N\/A Example:   Notes: This command is normally placed in \/cell\/go.scp so that it runs all of the time. The configuration file “\/specs\/urea_flow.cfg” file must exist. A copy of the urea_flow.cfg […]<\/p>\n","protected":false},"author":47,"featured_media":0,"parent":1959,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4057","page","type-page","status-publish","hentry"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/4057","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/users\/47"}],"replies":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/comments?post=4057"}],"version-history":[{"count":0,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/4057\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/1959"}],"wp:attachment":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/media?parent=4057"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}