Monitor Functions - Jetter JC-120MC User Manual

10 Programming

10.9.9 Monitor functions

Introduction
Prerequisites
Restrictions
Multi-display mode
Contents
364
This chapter provides a description on how an HMI can be used to display and
change variables independent of the application program.
For the monitor functions, the following requirements have to be met:
An HMI with numeric keypad must be connected to the controller.

 The monitor functions must not be blocked in the configuration registers.
 The STX instruction UserInput() for inputting numerical values must not
be active.
The monitor function can only access controller variables which are assigned
to permanent addresses.
Registers (%VL)

Flags (%MX)

Inputs (%IX)

Outputs (%QX)

In multi-display mode, the following must be taken into account:
The monitor function is only displayed on the HMI on which you have

activated it by pressing the key [R] or the key [I/O].
The controller is not able to tell apart on which HMI subsequent keystrokes

are carried out.
Topic
Overview of displays and HMIs .................................................................. 365
Meaning of keys in monitor function ........................................................... 366
Displaying and changing variables ............................................................. 367
Configuring the monitor function ................................................................. 369
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