How to Set Up MDB Level 3 Always Idle | VPOS Media

This guide covers configuring MDB vending machines for "Always Idle" (Selection First) operation. This mode ensures the user selects their item before payment authorization, streamlining transactions and preventing overcharges.

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Quick Reference: MDB Level 3 Always Idle mode

Use this guide to configure your VPOS Media device to operate in MDB Level 3 Always Idle mode. In this setup, the device stays in an idle state and waits for the customer to select a product on the machine before processing payment.


Quick Reference

If you're already familiar with the setup process and just need the configuration values, here they are:

Card Reader Tab

Setting Value
Card Reader MDB Level 3
Decimal Place 2
Transaction Start Method Product

MDB Tab

Setting Value
Cashless MDB Address Enable Cashless Device #1 ✅
MDB flags 02 Pre-selection Enabled
MDB Level 3 Optional Features Enable Always Idle State

Payment Tab

Setting Value
Default Credit  Set higher than the most expensive product in the machine
Default Credit Enabled

⚠️ Important: The Default Credit value must be higher than the price of the most expensive product on the machine. After entering the amount, make sure to select the checkbox to enable it. 

For step-by-step instructions on where to apply each setting continue with the video and full guide below.

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