standard_room_variants:v1_2_grms_room_base_modbus_mc24_h1_cad232
Table of Contents
V1.2 - GRMS Room Base Modbus - MC-24-H1 + CAD-232-A3-IQ
General description
V1.2 - GRMS Room Base Modbus - MC-24-H1 + CAD-232-A3-IQ is a standard full GRMS room variant based on the MC-24-H1 controller with an additional CAD-232-A3-IQ communication module.
This variant is intended for rooms where RS485 / Modbus communication is required, typically for a recuperator, Modbus HVAC device or similar external technical equipment.
Typical use
This variant is suitable for rooms requiring:
- all standard V1 room functions
- RS485 / Modbus communication
- connection to a recuperator
- communication with compatible HVAC equipment
- central supervision of communication-based equipment where supported
- Ethernet / Linker connection to S-RMS
Main components
| Group | Component code | Description |
|---|---|---|
| Room controller | MC-24-H1 | Main hotel room controller for local room automation and Ethernet communication. |
| Power supply | HDR-30-24 | 24 VDC power supply for controller and bus devices. |
| Bus interface | CAD-BC | Bus coupler used to connect MC-24-H1 to IEX bus devices. |
| RS485 module | CAD-232-A3-IQ | A-bus RS232 to RS485 converter used for RS485 / Modbus communication. |
| Corridor access panel | CR-D1-V2-PX-BK | Corridor-side access panel for room access, door status and lock control. |
| Door lock | EL-B / EL-N | Electric door strike, selected according to door type and installation requirements. |
| Room touch panel assembly | TGP-4D-01-IQ + TGP-S | In-room 4 inch touch HMI panel with TGP-S adapter/interface board for connecting the ES-W2 room temperature sensor. |
| Room temperature sensor | ES-W2-WH / ES-W2-BK | Room temperature sensor connected through TGP-S and used for HVAC regulation. |
| Fan-coil module | FC-1-IQ | 3-speed fan coil actuator for fan and valve control. |
| Room PIR sensor | IR-R-IW-WH / IR-R-OW-WH | Presence / motion sensor for occupancy and energy-saving logic. |
| Window contact | MOS-03-HD-WH / MOS-04-VS-WH / MOS-04-VS-BK | Wired magnetic opening sensor for window status and HVAC interlock. |
| Network | Ethernet / Linker | Connection to S-RMS. |
Connected room functions
| Function | Connected elements |
|---|---|
| Access control | CR-D1-V2-PX-BK, EL-B / EL-N and door status. |
| Guest interface | TGP-4D-01-IQ room touch panel with TGP-S adapter and room commands. |
| Room temperature | ES-W2-WH / ES-W2-BK connected through TGP-S. |
| HVAC | FC-1-IQ, fan-coil valves, 3-speed fan and ES-W2 room temperature control. |
| RS485 / Modbus | Recuperator or compatible HVAC device through CAD-232-A3-IQ. |
| Lighting | Standard room lighting circuits. |
| Blinds | One motorized blind group. |
| Energy saving | PIR sensor, window contact, managed power supply and master off function. |
| Central system | Ethernet connection to Linker and S-RMS. |
Variant difference
Compared to V1 - GRMS Room Base - MC-24-H1, this variant adds CAD-232-A3-IQ for RS485 / Modbus communication.
Notes
- V1.2 is recommended when the room requires communication with a recuperator or other RS485 / Modbus device.
- TGP-S is part of the room touch panel assembly and is used as the interface board for connecting the ES-W2 room temperature sensor.
- Final Modbus mapping depends on the connected equipment.
- Detailed communication parameters are defined per project.
standard_room_variants/v1_2_grms_room_base_modbus_mc24_h1_cad232.txt · Last modified: by paulo.krbavcic