QUICKDESIGNER ASCII Protocol •
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ASCII Protocol
Single Drop
Single Drop protocol extends the functionality of the QUICKPANELï›› family by allowing a host
device access to the target display memory. Single Drop is an ASCII communication protocol that
allows panel triggering, reading and writing variables, and setting the time and date.
A host device can be a computer, embedded controller, ASCII Module, BASIC Module, or any device
capable of sending and receiving ASCII character strings. XON/XOFF protocol is supported.
Panels are made up of operators such as push buttons, pilot lights and data displays. The tag variable
assigned to each operator is an internal variable. The names of the internal variables for ASCII
communication are DMxxxx, where xxxx is a value from 1 to 9999. Each variable name has a
corresponding ID number. The ID number is used in the ASCII protocol to identify the associated
variable.
For example, the variable name DM0020 has the ID of 0020. If a numeric display were assigned the
variable DM0020, the host device must send data to the variable DM0020. The ASCII protocol can
identify the variable by the ID number of 0020. The format of the ASCII protocol is described in the
following sections.
An example section is included to help guide you through setup and panel design.
Setup for using ASCII Protocol
Use the following procedure to ensure your target device is setup properly for ASCII Protocol. The
procedure is in condensed format. Only the required settings are outlined. For additional details, see
Creating a New Project beginning on page 3.
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