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5.4.2 Binary input circuit
The binary input circuit has a threshold for the input voltage and the user can regulate the
threshold using scheme switches and settings. Additionally, the binary input circuit has a
function in response to chattering signals produced by bouncing contacts, a programmable logic
for retarding and inverting the signal, and the user can set the respective features with
settings. Table 5.4-3 shows the respective settings and ranges in the standard type. Table 5.4-4
shows the ones in the variable types.
Table 5.4-3 Setting items for binary input circuits in the standard type
Threshold level for input voltage
Number of times in the filter
Switch of programmable operation in BI1
Value in the on-delay timer
Value in the off-delay timer
Inversion operation of BI1 signal
Switch of programmable operation in BI2
Value in the on-delay timer
Value in the off-delay timer
Inversion operation of BI2 signal
Switch of programmable operation in BI3
Value in the on-delay timer
Value in the off-delay timer
Inversion operation of BI3 signal
Switch of programmable operation in BI
n
Value in the on-delay timer
Value in the off-delay timer
Inversion operation of BIn signal
1
Note: Setting items are provided in each slot; see Figure 5.4-4.
2
Note: BI
n
_CPL and other settings are provided for all binary input circuits. For
example, the user can configure 18 CPLs in the BI1A module.
3
Note: Each setting item above is required to set at every IO_slots.
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