# Node-red-contrib-s7: all db data in one shot

**URL:** <https://discourse.nodered.org/t/node-red-contrib-s7-all-db-data-in-one-shot/56200>\
**Category:** Industrial\
**Created:** [6 January 2022 12:41 UTC](https://discourse.nodered.org/t/node-red-contrib-s7-all-db-data-in-one-shot/56200 "2022-01-06T12:41:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Lupin\_III](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/lupin_iii/32/67650_2.png) [@Lupin\_III](https://discourse.nodered.org/u/Lupin_III)\
**Post date:** [6 January 2022 12:41 UTC](https://discourse.nodered.org/t/node-red-contrib-s7-all-db-data-in-one-shot/56200/1 "2022-01-06T12:41:13Z")

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Hi, I'm using node-red-contrib-s7 to connect S7-1200 PLC with no problem since a while.  
Now the project is changing sensibly and I need to read all db which has more than 300 variable (every one second at least).  
There is a way to read all db as bytearray in one shot? I have done several test with no success (I cannot change the PLC program).  
Thanks

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [7 March 2022 12:42 UTC](https://discourse.nodered.org/t/node-red-contrib-s7-all-db-data-in-one-shot/56200/2 "2022-03-07T12:42:08Z")

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