Specifications

Crestron ST-1550C 1-Way Wireless RF Touchpanel

INTERLOCK

J10

To Controlled

Device

F10

Toggle Feedback

Toggle feedback is when the feedback of a button alternates between active and

inactive each time the button is pressed. As in the interlock, the toggle feedback

remains high even after the button is released, until the button is pressed again.

Because there is no way to communicate the state of the toggle button between the

panel and the control system by using that single button, Crestron models a toggle on

a one-way panel as a two-button interlock group. The button shown on the panel is

the first button. The second button (invisible, Crestron-created, not user-created) is

the original button's join number + 500, e.g. 1 and 501, 101 and 601, etc. Since there

are only 999 join numbers allowed by Crestron's RF protocol, a toggle button may

only have a join number of 499 or below. Be aware that you must not use the toggle

join numbers + 500 for other purposes. Crestron recommends that you keep toggle

buttons in one numeric range (such as 100-150) and then make sure you do not use

anything in the corresponding +500 range (600-750). When the user first presses and

releases the toggle button, the panel transmits the join number press and release. The

next time the user presses and releases the toggle button, the panel transmits the join

number + 500 press and release, and then continues to alternate between them. By

this method, Crestron knows that the user is explicitly turning the toggle on or

explicitly turning it off, so that the state on the control system and the state on the

touchpanel will match. The programmer must place an INTERLOCK symbol in the

SIMPL Windows program and connect the join number and the join number + 500 to

it. The feedback corresponding to the original join number should be used to drive

the logic corresponding to the toggle being turned on, and the feedback

corresponding to the join number offset by 500 is used to drive the logic

corresponding to the toggle being turned off. Refer to the following figure.

INTERLOCK Performing

TOGGLE Function

J507

F507

Duration Feedback

A button defined with duration feedback will remain active for a fixed period of time

as programmed in the duration field. Active duration is defined by selecting duration

as the feedback type, and entering a number of seconds in the duration field. The

programmer should add an MV (one-shot) symbol to the SIMPL Windows program,

with the appropriate time parameter, as shown in the following figure.

Operations Guide – DOC. 6096A 1-Way Wireless RF Touchpanel: ST-1550C • 21