User manual

gpio.Relais
Overview
The gpio.Relais modules offer access to four relays. Additionally, they extend
the gpio.NET Core interface by four digital, opto-decoupled inputs offering one
puls counter as well as four frequency counters. The modules easily integrate
into existing Modbus systems and can be identified and configured by a unique
serial number even in a running system. Beyond that, they offer a uniform set
of registers over the hole gpio.NET family.
Draft
Drawing 1: Dimensions
Interfaces
For communication, gpio.NET modules feature up to two Modbus interfaces. R-
Series provide routing between those. The DSUB connectors (X10 and X11) are
only available in R-Series.
USB
The USB device port (X1) belongs to the standard equipment of gpio.NET cards.
Because of this, the module is accessible from prevalent PC or laptops. To deal
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