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“TPOS01_QLT_SPP”. The former one is used in the select condition logic and the
operate condition (see Figure 4.9-20 and Figure 4.9-44). The latter is used for an
event suppression detector.
Decision by input signals
The logic in Figure 4.9-55 can give a decision in response to the reception of the signals; the
decision is of either “P1”, “P2”, “P3”, “Faulty”, and “Intermediate”. Table 4.9-30 exemplifies the
decisions in response to the BI1 - BI3 input signals; the decision can be acquired at the
monitoring point “TPOS01_STATE”.
Suppose, the BI1–BI3 circuits receive “On–Off–Off” signals when an earth-switch is
located at “P1” (see Figure 4.9-1); the value “1” is given, because the decision can be made with
the “On–Off–Off” signals.
If “On–On–Off” signals are applied to the BI1–BI3 circuits, the decision cannot be made
because the earth switch is still kinetic and is not standstill; thus, the decision is given as
“Intermediate”, the value “3” is given at the connection point ”TPOS01_STATE”.
If “On–On–On” signals are applied to the BI1–BI3 circuits, the decision cannot be made
because the earth-switch may be broken; hence, the value “7” is given.
Table 4.9-30 Decision made by the TPOS01 function
Input signals at IO#1 (200B01)
Generated value
“TPOS01_STATE”
(513001 3104011001)
Note: When handling the raw information other than the decision, the user can take
respective states of binary input circuits using other monitoring points. That is,
the user can take either state On (1) or state Off (0) corresponding to the BI1
circuit using the monitoring point “TOPS01_PT_P1”. Likewise, the BI2 and BI3
states can be taken using the monitoring points “TOPS01_PT_P2” and
“TOPS01_PT_P3”. (See Table 4.9-35)
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