# IOMod IEC 60870-5-101 Slave firmware change-log

Elseta IOMod series devices support's IEC 60870-5-101 Slave protocol.

<p class="callout info">This firmware can be used for IOMod series devices: IOMod 8DI8DO v1.x, IOMod 16DI v1.x, IOMod 8AI v1.x, IOMod 4RTD v1.x, IOMod HT v1.x</p>

<p class="callout warning">This version does not support IOMod 4Cs4Vs model. </p>

<table border="1" id="bkmrk-firmware-version-rel" style="border-collapse: collapse; width: 100%; height: 154.844px;"><tbody><tr style="height: 29.7969px;"><td style="width: 23.2386%; height: 29.7969px;">Firmware</td><td style="width: 8.28183%; height: 29.7969px;">Version</td><td style="width: 13.1027%; height: 29.7969px;">Release Date</td><td style="width: 55.3769%; height: 29.7969px;">Changes</td></tr><tr style="height: 73.0312px;"><td class="confluenceTd" style="width: 23.2386%; height: 73.0312px;">IOMOD\_IEC\_101\_v1.0.3.bin

</td><td class="confluenceTd" style="width: 8.28183%; height: 73.0312px;">v1.0.3</td><td class="confluenceTd" style="width: 13.1027%; height: 73.0312px;">2023-07-28</td><td class="confluenceTd" style="width: 55.3769%; height: 73.0312px;">- added 8DI4RO support

</td></tr><tr style="height: 52.0156px;"><td style="width: 23.2386%; height: 52.0156px;">IOMOD\_IEC\_101\_v1.0.bin</td><td style="width: 8.28183%; height: 52.0156px;">v1.0</td><td style="width: 13.1027%; height: 52.0156px;">2021-11-10</td><td style="width: 55.3769%; height: 52.0156px;">- Initial version of IEC 60870-5-101 slave support on IOMod series devices

</td></tr></tbody></table>