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RS-485 Adapters: Field Applications

To provide more solutions for SpaceLogic controls

© 2023 Schneider Electric. All Rights Reserved.

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Overview

RS-485 Adapters Range

Confidential Property of Schneider Electric |

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Non-Isolated Adapter (SXWNISORS48510001)

  • Connecting to non-isolated BACnet MS/TP network
    • Typically, Continuum b3
  • Modbus RTU connection interface

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Isolated Adapter (SXWISORS48510001)

  • Connecting to isolated BACnet MS/TP network
    • Typically, IA Series MNB

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Non-Isolated Power Adapter (SXWNISORS485P10001)

  • Increasing number of supported devices and distances on Room and Sensor Bus

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Isolated RS-485 Adapter

SXWISORS48510001

Confidential Property of Schneider Electric |

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Functionality:

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  • To enable connection of SpaceLogic controllers to a BACnet MS/TP isolated network. Typically a network of IA Series MNB or SE8000 BACnet controllers.

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  • Connect into SpaceLogic RJ45 jack with UTP cable, and provide RS-485 screwed terminal connection

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  • Only required for connection of field controllers on network, not for Automation Server hosting network

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  • Maximum number of devices on MS/TP network when mixture of SpaceLogic and MNB BACnet is 50

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  • Use to gradually transition isolated MS/TP network to IP

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  • UL-916 and plenum rated

BACnet MSTP – RS485 Network

UTP Cable with RJ45 connectors

IA Series

MNB-V2

IA Series

MNB-V2

SpaceLogic RP-V

Isolated RS-485 Adapter

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Non-Isolated RS-485 Adapter

SXWNISORS48510001

Confidential Property of Schneider Electric |

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UTP Cable with RJ45 connectors

Application 1: SpaceLogic controller on MS/TP network

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  • To enable connection of SpaceLogic controllers to a BACnet MS/TP non-isolated network. Typically a network of Continuum BACnet controllers

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  • Connect into SpaceLogic RJ45 jack with UTP cable, and provide RS-485 screwed terminal connection from adapter

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  • Only required for connection of field controllers on network, not for Automation Server hosting network

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  • Maximum number of devices on MSTP network when mixture of SpaceLogic and Continuum b3 is 50

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  • Use to gradually transition isolated MS/TP network to IP

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  • UL-916 and plenum rated

BACnet MSTP – RS485 Network

Continuum

b3 866-V

Continuum

b3 866-V

SpaceLogic RP-V

Non-Isolated RS-485 Adapter

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Non-Isolated RS-485 Adapter

SXWNISORS48510001

Confidential Property of Schneider Electric |

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Application 2: Provide Screwed Connection for Modbus RTU connected devices on RP controller

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  • To enable connection of Modbus RTU devices to a SpaceLogic or EasyLogic Controller. Provides RS485 screwed terminal connection.

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  • Connect into SpaceLogic RJ45 jack with UTP cable, and provide RS485 screwed terminal connection from adapter.

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  • UL-916 and plenum rated

Modbus RTU – RS485 Network

UTP Cable with RJ45 connectors

PowerLogic EM3500 Meters

SpaceLogic RP-V

Non-Isolated RS-485 Adapter

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RS-485 Power Adapter

SXWNISORS485P10001

Confidential Property of Schneider Electric |

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Application 1: Increase number of high power consuming devices on Sensor Bus for SpaceLogic MP controllers

  • Inject 24 VDC from an external power source onto the Sensor Bus
  • The Sensor Bus supports up to 2000mW from the MP controller. Any combination of devices that exceed that amount require an injection of power through RS485 Power Adapter.
  • Typically required for use with CO2 sensing, since these require an additional 400mW per device, so often exceeding the budget for 3 or 4 devices

External

24 VDC

Power Supply

Sensor Bus

SpaceLogic MP-V

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RS-485 Power Adapter

SXWNISORS485P10001

Confidential Property of Schneider Electric |

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Application 2: Increase the number of devices on the Room Bus

  • Room Bus can support 9 CRS modules on RP-C Pro
  • Inject 24 VDC from an external power source through RS-485 Power Adapter onto the Room Bus to increase number of devices to
    • 9 CRS modules plus up to 8 CRS-HIO modules
  • Supports a mix of CRS Modules, CRS- HIO Modules and Insight Sensors

External

24 VDC

Power Supply

Room Bus

Room Bus

Up to 9 CRS Modules (of which maximum 7 Insight Sensors)

Up to 8 CRS-HIO Modules

SpaceLogic RP-C Pro

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RS-485 Power Adapter

SXWNISORS485P10001

Confidential Property of Schneider Electric |

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Application 3: Increase the distance of the Room Bus

  • Maximum length of Room Bus is 72m from SpaceLogic controller
  • Inject 24 VDC from an external power source through RS-485 Power Adapter onto the Room Bus. Place Power Adapters at start and end of network for termination.
    • Increase total Room Bus distance to 150m
  • Ideal for
    • Large hotel suites
    • Control of large office space or multiple rooms, typically with RP-C Pro Plus
  • Supports a mix of CRS Modules, CRS- HIO Modules and Insight-Sensors

External

24 VDC

Power Supply

Room Bus

Room Bus

Up to 9 CRS Modules (of which maximum 7 Insight-Sensors)

Up to 8 CRS-HIO Modules

SpaceLogic RP-C Pro

RS-485 Power Adapter with termination

RS-485 Power Adapter with termination

150m distance

Last CRS-HIO Modules

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Summary of Uses

RS-485 Adapters range

Confidential Property of Schneider Electric |

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Use with SpaceLogic Controllers

Use with EasyLogic Controllers

Support SpaceLogic with b3 network

Support SpaceLogic with MNB network

Connecting Modbus RTU devices

Isolated RS-485 Adapter

Y

N

N

Y

Y - but expensive

Non-Isolated RS-485 Adapter

Y

Only for Modbus RTU

Y

N

Y – ideal solution

RS-485 Power Adapter

Y

N

N

N

Y – but expensive

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