# Node-red-contrib-cip-ethernet-ip Refresh only on change?

**URL:** <https://discourse.nodered.org/t/node-red-contrib-cip-ethernet-ip-refresh-only-on-change/43801>\
**Category:** Industrial\
**Created:** [7 April 2021 08:22 UTC](https://discourse.nodered.org/t/node-red-contrib-cip-ethernet-ip-refresh-only-on-change/43801 "2021-04-07T08:22:48Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![GlobalAutomation](https://avatars.discourse-cdn.com/v4/letter/g/8e8cbc/32.png) [@GlobalAutomation](https://discourse.nodered.org/u/GlobalAutomation)\
**Post date:** [7 April 2021 08:22 UTC](https://discourse.nodered.org/t/node-red-contrib-cip-ethernet-ip-refresh-only-on-change/43801/1 "2021-04-07T08:22:48Z")

</div>

Hello, trying to use node-red-contrib-cip-ethernet-ip. Can read the tags OK but they don't refresh if there is no change?. Is this the only way this node can run? I would like to read the tags every 15 minutes whether they have changed or not.

---

<div class="post-metadata">

**Author:** ![GlobalAutomation](https://avatars.discourse-cdn.com/v4/letter/g/8e8cbc/32.png) [@GlobalAutomation](https://discourse.nodered.org/u/GlobalAutomation)\
**Post date:** [7 April 2021 08:32 UTC](https://discourse.nodered.org/t/node-red-contrib-cip-ethernet-ip-refresh-only-on-change/43801/2 "2021-04-07T08:32:30Z")

</div>

I can force an update by reading the time from the PLC but was just wondering if there was an option to 'read continuously'

---

<div class="post-metadata">

**Author:** ![GlobalAutomation](https://avatars.discourse-cdn.com/v4/letter/g/8e8cbc/32.png) [@GlobalAutomation](https://discourse.nodered.org/u/GlobalAutomation)\
**Post date:** [7 April 2021 10:31 UTC](https://discourse.nodered.org/t/node-red-contrib-cip-ethernet-ip-refresh-only-on-change/43801/3 "2021-04-07T10:31:55Z")

</div>

A bigger issue now..... It doesn't read 'Strings'

---

<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:** [7 April 2021 12:57 UTC](https://discourse.nodered.org/t/node-red-contrib-cip-ethernet-ip-refresh-only-on-change/43801/4 "2021-04-07T12:57:10Z")

</div>

> [@GlobalAutomation](#):
>
> bigger issue now..... It doesn't read 'Strings'

Not necessarily a problem. If you can read the bytes then node-red-contrib-buffer-parser can reassemble the strings for you.

In fact, I almost always recommend the integrator reads as much data in one go as possible to limit the amount of polls to the PLC & use buffer parser to turn all of bytes into usable integers, floats, bools and strings.

Reading all data in one chunk mitigates consistency issues.

---

<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:** [21 April 2021 12:57 UTC](https://discourse.nodered.org/t/node-red-contrib-cip-ethernet-ip-refresh-only-on-change/43801/5 "2021-04-21T12:57:48Z")

</div>

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.