Automation System
The device that assembles groups of characters into complete messages prior to their entering the CPU is called:

an interpreter
None of these
an editor
a communications processor
a compiler

ANSWER DOWNLOAD EXAMIANS APP

Automation System
Digital signals:

have a frequency measured in units of hertz
None of these
have a sinusoidal shape.
can have three possible levels
are assigned values of 1 or 0 depending on the voltage level

ANSWER DOWNLOAD EXAMIANS APP

Automation System
Time proportioning control:

None of these
can be used on a PM550 programmable process controller
cannot use a TM990 micro¬computer
is less efficient than normal PID control
a and b above.

ANSWER DOWNLOAD EXAMIANS APP