Here's a quick reference list of popular examples, also remember the more "official" Samples & Freeware examples here in the: downloads section of our website.
Our Product Support Group (PSG) Recommends:Powerup MessageMessage LoggerI/O Enabler
Other favorites from the Samples & Freeware section:Time of Day Scheduler Example (be sure to download the Tech Note too)OptoScript usage samplesPAC Project DemoBase 64 encode/decodeSend a PING from Memory MapChart to send email
From the forums:Get Control Engine Info (like strategy name)Re-format a SuperTrend fileSplit stringsSimple change logError code decoderUsing PID + TPOEmail, Log, and check for High/Low values on a set of run-time-changable tagsSIMPLE Modbus example
HTTP related:Get weather (More generic) get weather & other info on the web using TCP & File handlesOriginal example for Http commandsInsert data into MySQL
Timing/date related: (besides the scheduler mentioned above)Timers (in a table) Build a string, in HH:MM:SS format, from an Integer Elapsed time / countdown calculation DateTimeToString: to build a timestamp that looks like: "2012-01-24 16:45:22"
Mary's mini-lessons:PAC Control 101: Why/when/how would I use POINTERS?PAC Control 101: Communication Handles PAC Control 201: Subroutines! (Roll your own command) PAC Control 101: Why/when/how would I use a TABLE? SNMP 101: or maybe 201: MIB, traps, and options for setting up your settings via PAC Control
Other nominees for this list? Requests? Send me a note!