Multiplex control, digits binary coded
Select the setting 5 in menu item 1. The BCD data (D3...D0) and the decimal point
(D4) are sent for each digit individually with their binary digit address to the inputs
D7...D5 (e.g. D7...D5 = 011 corresponds to digit C3) and in each case are
transferred to the display with a pulse at the input DS [3]. The rising edge of the pulse
effects the data transfer.
Multiplex control, digits uncoded
Select the setting 6 in menu item 1. The BCD data (D3...D0) and the decimal point
(D4) are sent for each digit individually with their uncoded digit address (four-digit
units: D8...D5; six-digit units: D10...D5) to the inputs D8...D5 resp. D10...D5 and in
each case are transferred to the display with a pulse at the input DS [4].The rising
edge of the pulse effects the data transfer at the input DS.
If the setting 7 is selected in menu point 1, the input DS has no function. The BCD
data (D3...D0) and the decimal point (D4) are each transferred to the corresponding
digit with one pulse each at the inputs D8...D5 and D7...D5. The rising edge of the
pulse effects the data transfer.
Multiplex control, BCD-packed
In menu item 1 the setting 8 is to be selected. The BCD data for two digits (D7...D4
and D3...D0) is applied with the respective digit addresses (D9...D8) to the respective
data inputs and transferred with a pulse on input DS in the display [5]. The rising
edge of the pulse causes the data to be transferred.
The BCD data is assigned to the digits as follows:
D9 = 0, D8 = 0:
D9 = 0, D8 = 1:
D9 = 1, D8 = 0:
Signal evaluation
The data must be applied to the data inputs for at least 10 ms to allow a reliable
identification. They can be applied simultaneously so that only one program step is
necessary for PLC interfacing. The data on the inputs D10...D0 must be stable over
the pulse duration (approx. 10 ms).
34
digits C2, C1
digits C4, C3
digits C6, C5
BAL S102 PAR M 1.0