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3 Operation and visualisation
The printing recorder has a large variety of possibilities for presenting the
measurements acquired at the signal inputs on the paper, for monitoring them,
and for control.
The functions are available for:
- limit monitoring through limit comparators
-open-collector outputs
- different chart paper speeds
- graphics printing
- text printing
3.1 Limit monitoring by limit comparators
8 limit comparators are available for monitoring limits. They are set up through
the parameter Configuration level 1
Î Limit comparator. Appropriate sub-pa-
rameters can be used to establish the limit values, switching differential (hys-
teresis) limits, texts, limit comparator functions (lk) and the response to a
probe break.
The texts are printed out when the values go out-of-range or exceed the differ-
ential values, as described in the section on text printing.
v Section 3.5.4 “Limit comparator texts, external text, binary-linked external
text”
The limit comparators produce a logical 0 or 1 as output. The sub-parameter
“LK-function” also decides what the result of the limit state is.
LK function: lk7
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