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UMAX130511 Version 1.00A Preliminary Documentation
– May be subject to change
16 - 141
0
Normal On/Off
1
Inverse On/Off
Table 2
– Object 6002h DI Polarity 8 Input Lines Options
The format to write to object 6002h is as follows:
Sub-index 1 will determine the following inputs polarities
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
-
-
-
-
-
-
UI2
UI1
The rest of the bits in sub-index 1 will be ignored.
As per the format of object 6002h, the bits in object 6000h
DI_Read_state_8_Input_Lines
will be
written to represent the same inputs’ states.
There is another type of ‘digital’ input that can be selected when 6112h is set to 20 = Analog
On/Off. However, in this case, the input is still configured as an analog input, and therefore the
objects from the Analog Input (AI) block are applied instead of those discussed above. The object
6000h is written as per the logic shown in Figure 5. In this case, the MIN parameter is set by object
7120h
AI Scaling 1 FV
, and the MAX is set by 7122h
AI Scaling 2 FV
. For all other operating
modes, object 6000h will always be zero.
Figure 5
– Analog Input Reads as Digital
1.2.
Input Function Block