1100-2294 Rev 1
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3 Installation
3.1 Network Overview
IMPORTANT:
Prior to installation, download the MVR-SC floorplan spreadsheet
available from MyBacharach.com or on the USB stick supplied with the
controller. This spreadsheet has editable fields for Floor / Room and non-editable
fields for Modbus ID and Gateway IP address. The floor and room fields are to be
completed prior to installation in order to ensure correct wiring and function.
Up to 100 MVR-300 devices can be connected to the MVR-SC. These are to be grouped as
Modbus RTU daisy-chain segments of up to 15 devices, terminating at a Gateway. Up to
seven gateways can be used in a fully populated network.
Gateways connect via an Ethernet TCP network, through an Ethernet switch, to the MVR-SC.
Up to seven gateways can be used in a fully populated network. The MVR-SC provides
centralized monitoring of all devices in the network, with a 15-second scan rate.
When creating the floorplan, follow these conditions:
Keep daisy-chain segments of MVR-300 devices as near as possible to the
gateway to which they connect.
We recommend keeping this distance under 500 ft., if possible, for Modbus
daisy-chain segments. As wire length increases, noise sources can accumulate,
and a greater degree of attention to shielding and grounding is required.
It is important
that the designations in the floorplan spreadsheet “data.csv”
exactly match the actual installed network. Any changes in the physical wiring
must be reflected in the spreadsheet for the system to function.
The following diagram shows an example network using all seven Gateways.
Figure 7 - Connection Diagram
Summary of Contents for MVR-SC
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