# Node for GW Instek

**URL:** <https://discourse.nodered.org/t/node-for-gw-instek/44732>\
**Category:** General\
**Created:** [26 April 2021 07:56 UTC](https://discourse.nodered.org/t/node-for-gw-instek/44732 "2021-04-26T07:56:36Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Willi](https://avatars.discourse-cdn.com/v4/letter/w/fbc32d/32.png) [@Willi](https://discourse.nodered.org/u/Willi)\
**Post date:** [26 April 2021 07:56 UTC](https://discourse.nodered.org/t/node-for-gw-instek/44732/1 "2021-04-26T07:56:36Z")

</div>

Hello,

I'm trying to connect to a programmable DC Power Supply from GW Instek (PFR-100 Series).  
It requires a socket server connection. For example: IP address: 172.25.13.100 port: 2268. The connection with other tools is established with the following: "TCPIPO::172.25.13.100::2268::SOCKET".  
How can this be built in Node-Red?  
Thanks for your help.

Willi

---

<div class="post-metadata">

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [26 April 2021 08:30 UTC](https://discourse.nodered.org/t/node-for-gw-instek/44732/2 "2021-04-26T08:30:07Z")

</div>

Looking at the programming manual, seems you send a command as ascii and get a result back.

In theory, add a TCP Reqeust node (set IP and Port accordingly) then inject a string of ":MEASure[:SCALar]:CURRent[:DC]?" should respond with the value e.g. `+0.0000`

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/1/d18e0533ac1c4f91c143783702df361d5fa2360c.png)

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [25 June 2021 08:30 UTC](https://discourse.nodered.org/t/node-for-gw-instek/44732/3 "2021-06-25T08:30:30Z")

</div>

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.