Rockwell Automation 2706-DXX Dataliner Message Display DL5 Series - Manual (Page 58)

2706-UM001A-US-P
7-8 Using the Parallel Port
Example:
You want to display the following number and decimal point in the DL5:
You would send data to the parallel port in the following sequence:
1.
2.
3.
If an invalid BCD digit is received, the corresponding character position on
the display will be blank. If the number setting the decimal point is zero, no
decimal point is displayed. When the decimal point is used, it takes one
character position on the display as shown in the examples.
You can update the numbers on the display without clearing the display or
resetting all digits. That is, to change three digits of a number, you send
only those three digits, along with the appropriate special instruction code;
the remaining digits are left unchanged.
Note: If you are changing all the numbers on the display, you should clear
the entire display.
4 5 6 1 2 3
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0
Clears the display and
sets the decimal point. And positions the decimal point 6
places from the right of the display.
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
1 1 0 0 0 0 0 1 0 0 1 0 0 0 1 1
Directs BCD digits to
third 3 character position. And sends the BCD number 123
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
1 1 0 1 0 1 0 0 0 1 0 1 0 1 1 0
Directs BCD digits to
fourth 3 character position. And sends the BCD number 456