# Mapping an API to a ModbusTCP server

**URL:** <https://discourse.nodered.org/t/mapping-an-api-to-a-modbustcp-server/190>\
**Category:** Share Your Projects\
**Created:** [15 May 2018 19:36 UTC](https://discourse.nodered.org/t/mapping-an-api-to-a-modbustcp-server/190 "2018-05-15T19:36:36Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![episensor](https://avatars.discourse-cdn.com/v4/letter/e/e9bcb4/32.png) [@episensor](https://discourse.nodered.org/u/episensor)\
**Post date:** [15 May 2018 19:36 UTC](https://discourse.nodered.org/t/mapping-an-api-to-a-modbustcp-server/190/1 "2018-05-15T19:36:36Z")

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Hi NodeRED community - we’ve written a guide on mapping the API on our Industrial IoT Gateway to a ModbusTCP server using NodeRED, and it might be useful for others because it could be applied to other API’s and communications protocols. It makes use of [this node](https://flows.nodered.org/node/node-red-contrib-modbus) for Modbus TCP communications.

Here’s a link to the doc (anyone can add comments):

> **[User Guide -- How to Enable a Modbus TCP Server on the EpiSensor Gateway](https://docs.google.com/document/d/1Utpt3vGiopbTHlAcitkizpCH6Q1EybjnRnCkaveN-Zo/edit?usp=sharing)**
>
> User Guide How to Enable a Modbus TCP Server on the EpiSensor Gateway� Applies to: NGR-30-5 EPI-076-00 © EpiSensor� Table of Contents Introduction	3 Related Documents	3 What hardware platforms does this guide apply to?	3 Connecting to the Gateway...

We would love to get your feedback!

Thanks,

Brendan (CEO @ EpiSensor)