ABB ControlMaster Series Manual page 58

ControlMaster CMF160
Universal process indicator, fieldmount
Problem solving flexibility
Extensive functionality is available to provide flexible
problem-solving capability; making the CMF160 much more
than just a process indicator.
Process alarms
8 independent process alarms can monitor any analog signal
within the CMF160, enabling extensive process monitoring
capability. Alarms can be used to drive physical outputs or
soft-wired to other functions within the indicator.
Real-time alarms
The 'alarm clock' functionality provided by the CMF160's
real-time alarms enables time-of-day decisions to be
introduced into the indicator's actions or specific functions to
be triggered routinely at specified times.
Delay timers
Event sequencing is enabled through the use of the CMF160's
delay timers. A predetermined delay and output duration can
be programmed into each delay timer and timers can be linked
together.
Custom linearizers
The CMF160 has 2 independent 20-point custom linearizers
that can be applied to any analog signal within the indicator.
These linearizers can be used in applications such as
level-to-volume conversion of a non-linear tank level or to
accommodate special input signals or output devices.
6 DS/CMF160–EN Rev. B | ControlMaster CMF160 | Universal process indicator, fieldmount
Math
8 math blocks provide arithmetic, averaging, min. / max. hold,
square root and signal switching functionality. Simple
equations can be performed in a single math block or multiple
math blocks can be nested together to construct complex
equations.
Signal switching 'multiplexing' math blocks switch between 2
analog signals based on a trigger signal. For example, a backup
sensor could be selected automatically on failure of a primary
sensor.
Logic
8 comprehensive logic equations provide powerful interlock
functionality. Inputs and outputs of the logic equations can be
soft-wired to any digital signal within the indicator to maximize
flexibility.
Totalizer
2 totalizers are available on the CMF160. The totalizers can
configured to perform multiple functions:
— integration against an analog signal to totalize flow
— counting digital pulses
— totalization of flow based on a frequency signal from an
electromagnetic flow meter
Frequency input
For maximum accuracy the CMF160 can accept a frequency
signal from an electromagnetic flow meter. The frequency
signal can be totalized and displayed; an instantaneous flow
rate can also be calculated and displayed on screen.