Function Modules S5-100U
Function
The module has two isolated comparators for voltage or current measurement (selector switch with
positions U/0/I). When the preset value is reached, the LED of the respective channel lights up and
sends a “1” signal to the programmable controller.
The module must be removed or the measuring circuit disconnected before you select the function.
In switch position “0”, the comparator is switched off; if scanned, a “0” signal results.
The response threshold of the comparator is set by a selector on the front panel. The selector has
scale divisions to simplify adjustment.
Installation
The comparator module is mounted on a bus unit like any other input or output module
(see chapter 3).
Wiring
See schematic diagram. Unused inputs can be left open.
Addressing
The comparator module is addressed like a 2-channel digital input module (channel “0” or “1”).
Figure 15-1. Scanning the Comparator Module
Scan A I x . 0 Channel “0”
(examples) O I x . 1 Channel “1”
Channel number
Slot address
15-2
EWA 4NEB 812 6120-02
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