Page 1: ...for protocol information The keypad also allows the user to run hold the display reset to 0 or preset to a number This board is addressable with a two digit address 01 Addressing is required to communicate with the displays There are 3 inputs located inside the right side of the display for wiring contact closure switches The user has the option of wiring switches to the inputs or using the serial...
Page 2: ... 0__ Amperes Signal Requirements If your unit has serial input either RS 232 RS 422 RS 485 etc the standard communication format for this unit is 1200 bits per second baud rate with one start bit eight data bits no parity and one stop bit per character The expected sequence of characters is specified in a later section of this manual entitled Protocol Product Components See appendix A Wiring Diagr...
Page 3: ...e remote control panel generates one character per key ASCII CODE KEYPAD LABEL VALUE decimal FUNCTION STX A 2 Start of text also known as a Control B this character must be the first character of each message ETX D 3 End of text also known as a Control C LF B 10 Line Feed also known as a Control J this character is used as the last character of some setup messages CR C 13 Carriage Return also know...
Page 4: ...1 45 ENTER KEYPAD EXAMPLES Example To set the display to 45 from an EDI supplied keypad send the following sequence of keys A 0 1 4 5 C 2 Time Interval Message The user has the ability to select how often the display increments from as fast as 100 times per second to as slow as once per 99 hours in increments The protocol for a time interval message is as follows STX 2 digit address 2 digit hours ...
Page 5: ...how many digits are in the display This information was entered at the factory and is stored in non volatile memory The same message that specifies the length of the display also specifies how much to change the display by each time that the time interval expires see 2 Time Interval Message on previous page This increment value can be from one to as large a number as the display has digits The pro...
Page 6: ...5 B Service There are no parts in your unit classified as user serviceable parts The plastic or glass cover can be cleaned using a soft cloth and a gentle glass cleaning solution Warranty The standard warranty for all products is one year on all parts and labor at our facilities All products are designed and manufactured by Electronic Displays Inc If you need assistance please call or FAX us and w...
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