SMT1500 MODBUS over USB?

[BillP]

This question was originally posted by Alex on APC forums on 3/23/2015

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I have the latest firmware, i still can't do MODBUS comms over USB with APCUPSD.

Does the SMT1500 support MODBUS?

[BillP · Accepted solution]

This reply was originally posted by Angela on APC forums on 3/23/2015

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Can you verify the exact version of firmware? It needs to be UPS 09.1 or higher I believe. And you need to enable modbus via the UPS display.

[ezplanet_apc]

This was originally posted on APC forums on 9/26/2020

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As I understand there are two hardware type of this model ID=17 and ID=18.

ID=17 latest firmware is release 7.1. This firmware does NOT support MODBUS

ID=18 latest firmware is release 9.3. This firmware does support MODBUS