# Change Chain Transfer

**URL:** <https://community.factoryio.com/t/change-chain-transfer/426>\
**Category:** Suggestions\
**Created:** [September 2, 2020, 7:42am UTC](https://community.factoryio.com/t/change-chain-transfer/426 "2020-09-02T07:42:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![daniel.alles404](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@daniel.alles404](https://community.factoryio.com/u/daniel.alles404)\
**Post date:** [September 2, 2020, 7:42am UTC](https://community.factoryio.com/t/change-chain-transfer/426/1 "2020-09-02T07:42:40Z")

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Currently you cannot properly program Chain Transfers to accomodate for safety. If you press a STOP button the following should happen:  
The platform stays in the same state (either lifted or not)  
The chain should stop rotating

Currently you cannot program this as raising and rotating is the same output.

[https://docs.factoryio.com/manual/parts/heavy-load/#chain-transfer](https://docs.factoryio.com/manual/parts/heavy-load/#chain-transfer)

| Tag | Controller I/O | Type | Description |
| --- | --- | --- | --- |
| Chain Transfer # (+) | Output | Bool | Roll (arrow direction). |
| Chain Transfer # (-) | Output | Bool | Roll. |
| Chain Transfer # (Left) | Output | Bool | Raise platform and rotate chain left. |
| Chain Transfer # (Right) | Output | Bool | Raise platform and rotate chain right. |

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**Author:** ![beatriz.santos](https://avatars.discourse-cdn.com/v4/letter/b/76d3ee/32.png) [@beatriz.santos](https://community.factoryio.com/u/beatriz.santos)\
**Post date:** [September 10, 2020, 9:35am UTC](https://community.factoryio.com/t/change-chain-transfer/426/2 "2020-09-10T09:35:05Z")

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Hello, @daniel.alles404!  
Thank you for your feedback. We agree, there are still some parts that don’t comply with these safety measures. We look forward to solving this issue in a future version of Factory I/O.