# Node-red-contrib-s7 variables defined dynamically

**URL:** <https://discourse.nodered.org/t/node-red-contrib-s7-variables-defined-dynamically/56921>\
**Category:** General\
**Created:** [19 January 2022 15:12 UTC](https://discourse.nodered.org/t/node-red-contrib-s7-variables-defined-dynamically/56921 "2022-01-19T15:12:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![FabioT](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@FabioT](https://discourse.nodered.org/u/FabioT)\
**Post date:** [19 January 2022 15:12 UTC](https://discourse.nodered.org/t/node-red-contrib-s7-variables-defined-dynamically/56921/1 "2022-01-19T15:12:50Z")

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Hi All,  
is there a way, working with "node-red-contrib-s7" nodes, to do not define PLC variables in a static way as defined in attached image?  
I would like to pass the plc variables list as a json file to the s7-in node...  
Please let me know.  
Thank you

![Snapshot](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/f/2/f24ab42c3d1e5f438fe4d6e498c8a1d27d994f84.png)

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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:** [20 March 2022 15:13 UTC](https://discourse.nodered.org/t/node-red-contrib-s7-variables-defined-dynamically/56921/2 "2022-03-20T15:13:13Z")

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