Function library
Function blocks
3.5.12 BCD decade switch (BCD)
3−123
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EDSVS9332P−EXT DE 2.0
3.5.12.5 BCD decade switch
+/-
5
412
3
MSB
LSB
BCDx-SIGN
BCDx-SEL1
BCDx-SEL2
BCDx-SEL3
BCDx-SEL4
BCDx-SEL5
BCDx-DATA1
BCDx-DATA2
BCDx-DATA3
BCDx-DATA4
9300
Fig. 3−77 Connection of a BCD decade switch
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The data outputs of the BCD decade switch must be decoupled via diodes. If necessary, use a
terminal extension (via system bus CAN).
– LENZE offers this terminal extension.
Function
A BCD is transmitted to the target code as follows:
Input/output Signal Function
BCDx−SELx or
BCDx−SIGN
HIGH Triggers the corresponding BCD decade switch. Reading and temporary storing of the BCD data
to BCDx−DATA1 ... BCDx−DATA4.
BCDx−LOAD LOW−HIGH edge Writes BCD data to the target code.