User manual

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that measures temperature and humidity and communicates the results to a computer.
Modbus is often used to connect a supervisory computer with a remote terminal unit (RTU) in
supervisory control and data acquisition (SCADA) systems.
The CS121-series (exclude BUDGET models) support MODBUS over IP and MODBUS over
RS232 generally. Additionally, the CS121MODBUS-series also includes an RS485 interface at
COM2, which can be connected to a 485Bus-system.
Figure 61: CS121MODBUS Installation
• PROFIBUS
PROFIBUS (Process Field Bus) is the most popular type of fieldbus with more than 14 million
nodes (2006) in use worldwide. PROFIBUS was defined in 1991/1993 as DIN 19245, moved in
1996 to EN 50170 and is since 1999 included in IEC 61158/IEC 61784 Standards.
To integrate the CS121 in a Profibus environment, GENEREX offers a Profibus gateway,
which converts the MODBUS output of the CS121 into PROFIBUS environment.
Figure 62: CS121 PROFIBUS Installation
6.7 UNMS (UPS-Network Management System)
UNMS II is a UPS network monitor designed to inform you of emergency power supply
systems problems before your clients, end-users or managers do. The UNMS as a limited
version is part of every UPSMAN license (UPSMAN suite contains UPSMAN RS232/USB UPS
Manager, UPSMON Windows client and UNMS 2 – limited to 9 UPS). The UNMS Server
Service runs intermittent checks on UPS devices you specify. When problems are
encountered, the UNMS Server Service can send notifications out to administrative contacts in
a variety of different ways (For example: Email). Current status information, historical logs, and
reports can all be accessed via a web browser (Web Console).