Multi-Tech Systems 7600, 7500 manual Maximum State, Overload State, Pulse mode

Detailed Module Operation ION 7500 / ION 7600 User’s Guide

Maximum State

Pulse Width

(e.g. duration of a lit LED)

Pulse mode

KYZ mode

High-Low transitions

Time

In PULSE mode during maximum operation, the Source input increases so the on- time and off-time of the pulses are equal.

The diagram above shows seven complete pulses for the Calibration Pulser module in PULSE mode, and fourteen transitions for the Calibration Pulser module in KYZ mode. If the Kt register was set up to send a pulse or KYZ transition for 1.8 energy-hours on each module respectively, then the module in KYZ mode has output twice as much energy-hours than the module in PULSE mode.

Overload State

Pulse Width

(e.g. duration of a lit LED)

Pulse mode

Excessive pulsing (overload

state) causes the LED

to remain lit

KYZ mode

High-Low transitions

Excessive transitions (overload

state) causes the LED

to remain lit

Time

If the Source input increases so that an excessive number of state changes appear at the hardware channel, the Overload Boolean output is turned ON, and pulsing stops (i.e. the LED or digital output will remain on) until the energy values return to a nominal level. The Overload Boolean output is available for Calibration Pulser modules in PULSE or KYZ mode.

The diagram above shows three complete pulses for the Calibration Pulser module in PULSE mode, and six transitions for the Calibration Pulser module in KYZ mode. For both modules, the Overload output has turned on, causing the LED to remain lit.

Page 222 Digital and Analog I/O Technical Note