# Raspberry PI connect to RS485

**URL:** <https://discourse.nodered.org/t/raspberry-pi-connect-to-rs485/24502>\
**Category:** General\
**Created:** [9 April 2020 07:03 UTC](https://discourse.nodered.org/t/raspberry-pi-connect-to-rs485/24502 "2020-04-09T07:03:25Z")\
**Posts on this page:** 1\
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**Author:** ![gemini86](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gemini86/32/70967_2.png) [@gemini86](https://discourse.nodered.org/u/gemini86)\
**Post date:** [21 April 2020 13:09 UTC](https://discourse.nodered.org/t/raspberry-pi-connect-to-rs485/24502/26 "2020-04-21T13:09:14Z")

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The datasheet of your controller shows that the status word is at 1001H (hex), so in the modbus node, that would be 4097 decimal. It also shows the status being 5 words in length. I do not know what the data formatting is, if they're using ieee 754 floating point data words, integers divided by some factor to represent floats, individual bit flags, etc. That's going to be deeper in the drive's actual modbus spec.

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