# Sending Data to S7-1200 with S7 out Node \[solved\]
**URL:** https://discourse.nodered.org/t/sending-data-to-s7-1200-with-s7-out-node-solved/26895
**Category:** Industrial
**Created:** [19 May 2020 07:15 UTC](https://discourse.nodered.org/t/sending-data-to-s7-1200-with-s7-out-node-solved/26895 "2020-05-19T07:15:15Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@digidax](https://discourse.nodered.org/u/digidax)
#### Post date: [19 May 2020 07:15 UTC](https://discourse.nodered.org/t/sending-data-to-s7-1200-with-s7-out-node-solved/26895/1 "2020-05-19T07:15:16Z")
Hi,
I would like to send some integer values to a S7-1200, reading from it works perfect but can't write.
This is my test flow to write:
```auto
[{"id":"b1743b10.6060c8","type":"s7 out","z":"b46347df.05287","endpoint":"4be02903.4c3c18","variable":"TxTimestamp","name":"Kühlsystem","x":502.95001220703125,"y":1471.933349609375,"wires":[]},{"id":"95dbda8f.07cb68","type":"inject","z":"b46347df.05287","name":"","topic":"","payload":"1","payloadType":"num","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":295.95001220703125,"y":1405,"wires":[["b1743b10.6060c8"]]},{"id":"4be02903.4c3c18","type":"s7 endpoint","z":"","transport":"iso-on-tcp","address":"192.168.130.23","port":"102","rack":"0","slot":"1","localtsaphi":"01","localtsaplo":"00","remotetsaphi":"01","remotetsaplo":"00","connmode":"rack-slot","adapterauto":true,"adapterport":"","busaddr":"2","adapteraddr":"0","cycletime":"500","timeout":"1500","verbose":"on","name":"Kühlsystem","vartable":[{"addr":"DB26,INT52.0","name":"RunningPresses"},{"addr":"DB26,WORD54.0","name":"WaterFlow"},{"addr":"DB26,DWORD56.0","name":"TxTimestamp"}]}]
```
Inside the S7, it's the same DB where I do reading successful data from. For writing on it, the var's are defined as follows:
```auto
52.0 SInt
54.0 Int
56.0 UDInt
```
Is my test injection wrong? Watching the DB, no changes are done after injection:
Thanks for help, Frank
---
### Author:  [@digidax](https://discourse.nodered.org/u/digidax)
#### Post date: [19 May 2020 13:14 UTC](https://discourse.nodered.org/t/sending-data-to-s7-1200-with-s7-out-node-solved/26895/2 "2020-05-19T13:14:33Z")
The Problem seems to be the connection to the S7. The debug log shows: "Keine Antwort, Neustart der Kommunikation" - No answer - restart communication. With exactly the same paramteres in the endpoint , I can read from the CPU. Are there any more debug infos to figure out the problem? The CPU has no protection mechanism set.
Thanks, Frank
---
### Author:  [@digidax](https://discourse.nodered.org/u/digidax)
#### Post date: [20 May 2020 05:59 UTC](https://discourse.nodered.org/t/sending-data-to-s7-1200-with-s7-out-node-solved/26895/3 "2020-05-20T05:59:54Z")
Solved, have used for writing to PLC the "S7comm:write" node.
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [3 June 2020 05:59 UTC](https://discourse.nodered.org/t/sending-data-to-s7-1200-with-s7-out-node-solved/26895/4 "2020-06-03T05:59:58Z")
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