Based on the format and available information, IS200DTAIH1ABB and IS210DTAOH1AA  appear to be model codes for industrial automation products, likely from ABB. Here's a breakdown of what we can potentially determine and how to find more details:

**Possible Function (based on code format):**

* The "IS" prefix might indicate an **Industrial System** product line from ABB.
* The following numbers and letters likely represent specific product features or configurations within that line.

**Finding Product Details:**

While pinpointing the exact function of these models without datasheets is challenging, here are some ways to find more information:

* **ABB Website:** Search the ABB website using the complete model codes "IS200DTAIH1ABB" and "IS210DTAOH1AA". ABB might have product information pages or user manuals with details: [https://new.abb.com/us](https://new.abb.com/us)
* **Alternative Sources:**
    * Search online for "IS200DTAIH1ABB datasheet" and "IS210DTAOH1AA datasheet". Industrial parts suppliers or online marketplaces might have the datasheets listed.
    * Contact ABB Support directly through their website or by phone. They might be able to provide information on these specific models based on the codes.

**Additional Notes:**

* The "DTA" portion of the code might be relevant to the product's function, but without further information, it's difficult to say for sure.
* The difference in the last few characters (H1ABB vs H1AA) suggests these might be variations of the same base model with slight configuration differences.

If you have any additional context about where you encountered these codes (e.g., a brochure, system diagram), it might provide clues about their function.