Functions
8.3 Digital inputs (DI)
Control Units CU240S
Operating Instructions, 11/2006, A5E00766042B AA
8-15
Note
If an analog input has been configured as a digital input, then the following limit values
apply:
• Voltage > 4 V = logical 1
• Voltage < 1.6 V = logical 0
BICO parameterization
If the setting 99 (BICO) is entered into parameters P0701 … P07013, then the BICO wiring is
enabled for the appropriate digital input. The output parameter number of the function (the
parameter, included in the parameter text BO) should be entered into the command source
(the parameter which contains the code BI in the parameter text).
Example
A relay is to be controlled directly using DI0.
● P0700 = 2 Control enabled using digital inputs
● P0701 = 99 Enable BICO parameterization on DI0
● P0731[0] = 722.0 Relay 1 controlled directly.
This can be useful when the normal relay functions and digital inputs are not required so the
user can use them for their own purposes.
Note
Only experienced users should use the BICO parameterization and for applications where
the possibilities provided by P0701 … P07013 are no longer adequate.
If P0701 … P07013 are set to 99, then the command source can only be changed by the use
of P0700. For example, changing P0701 from 99 to 1 will not change the command source
or alter the existing BICO settings.
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