# Receive DataBlock from Siemens S7-1200

**URL:** <https://discourse.nodered.org/t/receive-datablock-from-siemens-s7-1200/42803>\
**Category:** Industrial\
**Created:** [18 March 2021 10:00 UTC](https://discourse.nodered.org/t/receive-datablock-from-siemens-s7-1200/42803 "2021-03-18T10:00:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Yoyot](https://avatars.discourse-cdn.com/v4/letter/y/3d9bf3/32.png) [@Yoyot](https://discourse.nodered.org/u/Yoyot)\
**Post date:** [18 March 2021 10:00 UTC](https://discourse.nodered.org/t/receive-datablock-from-siemens-s7-1200/42803/1 "2021-03-18T10:00:44Z")

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Hello everyone !

I use OPC UA for send data to S7-1200 from Node-Red

I want to send a block of data from my Siemens S7-1200 but i don't know the datatype of my block.

For know the datatype and name of my variable i use UA Expert, but here, on my datablock i don't have datatype.

For simple variable i have the name and datatype like Int16 or Float but here nothing.

Do you have any ideas ? I'll make some pictures with.

Have a good day !

 ![DB](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/9/a/9a81727605ea504c0b44a6f3ea8ea0f2b7ea0764.png)  
 ![UA](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/2/5/25ca2375b2a8fe14fb3e3abe33dbc4e544fd0f26.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:** [17 May 2021 10:01 UTC](https://discourse.nodered.org/t/receive-datablock-from-siemens-s7-1200/42803/2 "2021-05-17T10:01:24Z")

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