LARTET DN-107P, Руководство по эксплуатации

Страница: 20 / 33

4-8 OPERATION CHAPTER 4
Display series DN-107P
4.3. Functions
4.3.1. Function 1. 8 bits multiplexed BCD.
The 8 bits multiplexed BCD function allows controlling displays from 3 to 4 digits with 8
data bits. The PLCs only need 8 data bits to control an 8 bits multiplexed BCD display.
The input’s power supply should be between 12V and 26V CC and can be connected to
PNP, NPN and CONTACT outputs. The function of each input is:
Inputs E5 and E6: If the four inputs are 0, with the E1to E4 the decimal point position is
codified. If not, they codify the digit’s position and E1, E2, E3 and E4 are the code of the value.
The digit 1 is in the right of the display.
Decimal point position
Digit No point 1 2 3 4
E1 0 1 0 1 0
E2 0 0 1 1 0
E3 0 0 0 0 1
E4 0 0 0 0 0
Point selection Digit point selection
1 2 3 4
ºE5 0 1 0 1 0
E6 0 0 1 1 0
Function Symbol : + / % - º
= 01 Value 0 1 2 3 4 5 6 7 8 9 A b C d - Space
= 11 Value 0 1 2 3 4 5 6 7 8 9 A b C d E F
E1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
E2 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
E3 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
E4 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1