User's Manual

Table Of Contents

TReX User Manual v2.14 Firmware

IO Screens

Screens that relate to inputs and outputs.

IO (1):

All input and output states. Each IO highlighted state changes if the IO level is HIGH or

LOW. There is a small line above each input or output if HIGH, and a line below if LOW. All

ADCs (analog inputs) and DACs (analog outputs) show a bar graph as a proportion of full

scale and display a raw count from 0-1023. When scaling has been applied to an analog

output, the DAC value shown is the unscaled value.

In the middle, shown in larger text is “01”. The number“01” in this case is the telemetry UNIT

ID. When TELEMETRY->MODE is configured to SCADA_MASTER a small down arrow

may be visible if the TELEMETRY->REMOTES have been configured to be more than 0.

Pressing the down arrow (when configured as a SCADA_MASTER) allows the UNIT ID to be

cycled to view the IO of each remote slave in the system – allowing a possible system of up to

88 digital IO, 22 ADCs and 22 DACs to be viewed.

Next to the UNIT ID is the smaller number “123”. Each TReX resets this number to the LINK

FAIL TIME each time a message is decoded. This “link count” reduces, and if reaches 0, the

link fail output can be operated.

SCADA_MASTER TReX units allow the “link count” to be viewed for all remote TReX

SCADA_SLAVE units.