To display the integer value on the PLC's built-in 7-segment LED displays, starting from the nth digit and occupying m number of digits. Leading zeros will be added to the left of the display if value occupies less digit than that specified by m.

However, if m is less than 1 (e.g. m = 0) then value is treated as a single 8-bit ASCII character to be displayed rather than as a numeric value. Special symbols may be displayed on the LED panel if the LED driver is able to display the corresponding ASCII character.

n must be between 1 to 16. The digit position is counted from left to right. i.e. the leftmost LED digit is digit #1. i-TRiLOGI supports up to 16 LED digits. The actual number of LED on the PLC may vary from 0 to 16, in this case only the available digits will be effective. Value may be a 16- or 32-bit integer number. Once set, the LED display will latch the set value until the next SETLED statement on the same digit is executed. On the i-TRiLOGI simulator, the result of the SETLED is displayed together with the Special Variables screen, which may be viewed by pressing the <V> key while in the simulation mode.