UMAX030211 Version 1.0.2. Preliminary Documentation – May be subject to change
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2.
Controller Function Blocks
2.1.
Input Function Blocks
The controller has altogether twelve inputs. The ten Universal Inputs can be configured to measure
voltage, current, frequency, pulse width (PWM) or digital signals. The Resistive input can measure
resistances in range 25Ω … 250kΩ. The Digital Input can be configured to measure digital signals.
Figure 2 – Analog Input Objects
Object 6112h,
AI Operating Mode
determines whether the AI or DI block is associated with an input.
The options for object 6112h are shown in Table 1. No values other than what are shown here will
be accepted.
Value Meaning
0
Channel Off
1
Normal Operation (analog)
10
Digital Input (on/off)
20
Analog and On/Off
Table 1 – Object 6112h - AI Operating Mode Options
The most important object associate with the AI function block is object 6110h
AI Sensor Type
. By
changing this value, and the object 2100h
AI Input Range
associated with it, other objects will be
automatically updated by the controller. The options for object 6110h are shown in Table 2, and no
values other than what are shown here will be accepted. The inputs are setup to measure voltage
by default.
Value Meaning
40
Voltage Input
50
Current Input
60
Frequency Input (or RPM)
100
Resistive
10000 PWM Input
Table 2 – Object 6110h - AI Sensor Type Options
