User Manual

Logical I/O blocks
Input blocks
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[Icpt] = (Intercept
SignalTransducer
/ Slope
SignalTransducer
) + Intercept
SignalType
[Slpe] is calculated on the basis of:
[Slp] = (InterpolationPoint_y2 – InterpolationPoint_y1) / (InterpolationPoint_x2 – InterpolationPoint_x1)
Binary Input (BI)
The binary input block is the logical image, or memory map, of a binary switch value and describes its
properties. The parameters of the physical value are set via the polarity [Pol], and the value is then
available as the present value for further processing. The Present Value is monitored for a given state. For
commissioning and test purposes, or in the event of an error, the Present Value can be dissociated from
the process and overwritten with a replacement value.
The following functions are integrated in the block:
● Inversion of the input value
● Interruption of input signal [OoServ] and replacement with [DefVal]
● Alarm value monitoring (OFFNORMAL alarm)
● Reliability monitoring [Rlb] (FAULT alarm)
● Change of state messages (events / system events)
● Runtime totalization and maintenance messages
Multistate Input (MI)
The multistate input block is the logical image, or memory map, of several binary switch values or a direct
hardware multistate value, and describes its properties. The multistate capability is achieved by
interconnecting a number of individual binary states. The binary states are evaluated and mapped as
integers. Each integer in the series is allocated a text label which is further processed and interconnected
within the program as a current value. For commissioning and test purposes, or in the event of an error, the
Present Value can be dissociated from the process and overwritten with a replacement value. As an
auxiliary function, the runtime total for this multistate input can be registered and evaluated.
The following functions are integrated in the block:
● Interruption of input signal [OoServ] and replacement with [DefVal]
● Alarm value monitoring (OFFNORMAL alarm)
● Reliability monitoring [Rlb] (FAULT alarm)
● Change of state messages (events / system events)
● Runtime totalization and maintenance messages
● Hardware mapping