Tibbo EM1000 - Setup (MD) Button (Line)

To Next Page

To Previous Page

533 Programmable Hardware Manual (PHM)

Relays 1-6 are wired into sensor inputs 1-6. They commutate "Vin", which is the

voltage from the power source for the DS1005. When a relay is activated, this

voltage is applied to a corresponding sensor input.

There are eight sensor inputs but only six relays. Remaining sensor inputs 7 and 8

are controlled by two buttons which play the same role as the relays. Push a button

and a corresponding sensor input is triggered.

Setup (MD) Button (Line)

Tibbo boards and external controllers (such as the EM2001 and DS1101) have a

button called "setup" or "MD" button ("MD" stands for "mode"). Tibbo modules (such

as the EM2000) have an MD pin (line).

The setup button (line) has three functions:

When a Tibbo BASIC/C application is running, it can use the button for its own

purposes (see the button. object).

When the device is password-protected, keeping the button pressed (line pulled

LOW) while accessing the device from TIDE allows the password to be bypassed.

This is the way to reset the password on the device.