# Transmit CAN with scaling

**URL:** <https://forum.realdash.net/t/transmit-can-with-scaling/1623>\
**Category:** RealDash CAN\
**Created:** [April 12, 2023, 6:51am UTC](https://forum.realdash.net/t/transmit-can-with-scaling/1623 "2023-04-12T06:51:13Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\
**Post date:** [April 20, 2023, 5:19am UTC](https://forum.realdash.net/t/transmit-can-with-scaling/1623/8 "2023-04-20T05:19:16Z")

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Thank you for the insights. RealDash transmits a CAN frame in these conditions:

1. frame has ‘writeInterval’ attribute in XML.
2. data specified in a frame changes via Actions.
3. frame has ‘initialValue’ attribute.

Good tip to everyone; be very cautious when sending CAN frames to the vehicle for abovementioned reasons. Typical use-case of RealDash is completely custom system, but keep in mind that you can cause issues to OEM vehicles by sending CAN frames.

I can see the benefit of having separate ‘conversionOut’ attribute. I think I will leave it there and add to the documentation.

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