Trane Symbio CM2 Installation, Operation And Maintenance Manual

Communication module

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Installation, Operation, and Maintenance

Symbio™ Communication Module

(CM2)

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment

can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or

serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.

July 2024

SAFETY WARNING

BAS-SVX094A-EN

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Summary of Contents for Trane Symbio CM2

Page 1 Installation, Operation, and Maintenance Symbio™ Communication Module (CM2) SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
Page 2: Warnings, Cautions, And Notices
Copyright This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.
Page 3 Failure to follow instructions below could result in death or serious injury. • All Trane personnel must follow the company’s Environmental, Health and Safety (EHS) policies when performing work such as hot work, electrical, fall protection, lockout/ tagout, refrigerant handling, etc. Where local regulations are more stringent than these policies, those regulations supersede these policies.
Page 4: Table Of Contents
Table of Contents Overview ............... 5 Specifications .
Page 5: Overview
Overview When used with a Symbio™ controller, the Symbio Communication Module (CM2): • Provides additional IP connection, which can be configured for use with either BACnet IP or TD7 display. • Enables Modbus client capability (communication with third-party downstream Modbus devices). •...
Page 6: Dimensions
Overview Dimensions Figure 1. CM2 dimensions *One DIN unit = 18 mm *DIN Standard 43 880, Built-in Equipment for Electrical Installations, Overall Dimensions and Related Mounting Dimensions Important: Slotted release clip shown– if removing or repositioning the controller, the user must remove connectors before proceeding.
Page 7: Installation Instructions
Installation Instructions Location Guidelines Before installing the CM2, choose a location that is: • In an environment protected from weather elements. • Restricted from public access to minimize tampering and vandalism. • Near the controlled equipment to reduce wire usage. •...
Page 8: Connecting Common Gnd And Chassis Gnd To The Symbio Controller
Installation Instructions Figure 3. CM2 connection details Connecting Common GND and Chassis GND to the Symbio Controller 1. Connect the USB-C end of the cable to the CM2 module. 2. Connect the USB-A end of the cable to a USB port on the Symbio controller. 3.
Page 9: Led Functions
Installation Instructions Figure 4. CM2 connecting to Symbio controller Important: The Symbio controller must be properly connected to chassis ground. LED Functions After powering up the Symbio controller, the transmitting (TX) and receiving (RX) LEDs blink when communication occurs between the devices. Note the following LED activity on the front of the CM2 module: Marquee LED: •...
Page 10 Installation Instructions Figure 5. CM2 LED functions BAS-SVX094A-EN...
Page 11: Modbus Rtu Connection
Modbus RTU Connection The CM2 module includes Modbus Client functionality for a local Modbus RTU network. Consider the addition of the CM2 module to enable communication with a variety of Modbus server devices. Figure 6. Modbus RTU client and server devices Modbus RTU is a client/server protocol, where the client requests information from one or more servers.
Page 12: Ethernet Connection
Ethernet Connection The Symbio™ 500 controller has two Ethernet ports, labeled 1 and 2, that are internally connected as one port. The ports share one IP address and associated setup parameters. These ports enable wired BACnet/IP or support for the TD7 display. Because the ports are internally connected as one, simultaneous use of BACnet/IP and the TD7 display requires the CM2 communication module.
Page 13: Symbio Communication Module (Cm2) Connection Combinations
Symbio Communication Module (CM2) Connection Combinations The following are examples of combinations for connecting CM2 module with Symbio™ 400/500 controllers. Symbio 400–B use case 1: • Modbus RTU Client capability • Communication to 3 party Modbus devices • IP connection to communicate BACnet/IP or Modbus TCP/IP Symbio 400–B use case 2: •...
Page 14 Symbio Communication Module (CM2) Connection Combinations Symbio 500 use case 1: • Modbus RTU Client capability • Communication to 3 party Modbus devices Symbio 500 use case 2: • IP connection and the TD7 display simultaneously supported Symbio 500 use case 3: •...
Page 15 Symbio Communication Module (CM2) Connection Combinations Symbio 500 use case 3a: • Modbus RTU Client capability • Communication to 3 party Modbus devices • IP connection and the TD7 display are simultaneously supported • The IP Port in the CM2 can be configured for an IP connection Symbio 500 use case 3b: •...
Page 16: Configuration Of Cm2 Module - Modbus And Ethernet Settings
Configuration of CM2 Module — Modbus and Ethernet Settings Configure Modbus Client Settings 1. Use Tracer TU to connect to the Symbio™ controller. 2. With the controller connected, select the Equipment Utility wrench on the right side of the page. 3.
Page 17: Modbus Register Definition
Configuration of CM2 Module — Modbus and Ethernet Settings Figure 11. Modbus client settings Modbus Register Definition The manufacturer of each connected Modbus RTU server provides a list of the available Modbus points (registers). The interpretation of the device data will likely vary from manufacturer to manufacturer. Carefully read the documentation provided by the manufacturer for integration instructions pertaining to each register and register type.
Page 18 Configuration of CM2 Module — Modbus and Ethernet Settings Figure 13. Save Device Name and Address 5. Select the + icon to add the definition for the first Modbus register. Figure 14. Define register(s) 6. Define the Modbus register: Field Definition Name Provide a unique name for the Modbus register.
Page 19 Units To properly setup the BACnet object when integrating to Tracer SC+ or a non-Trane BACnet controller, select from the available units of measure to associate with the register data or leave the unit selection as none.
Page 20 Configuration of CM2 Module — Modbus and Ethernet Settings Field Definition Offset / Bit Offset Depending on the implementation by the device manufacturer, it may be necessary to apply an ‘offset’ to the data to properly display the intended value. For example, to convert Modbus data to a BACnet multistate object, it may be necessary to add an offset of 1 to simplify the integration of the Modbus and BACnet data.
Page 21 Configuration of CM2 Module — Modbus and Ethernet Settings Field Definition Timeout (milliseconds) The amount of time in milliseconds (ms) the controller will wait for a response before assuming there will not be a response. This will trigger a retry unless the retry count has been reached. The default response timeout is 100 ms.
Page 22 Configuration of CM2 Module — Modbus and Ethernet Settings Figure 21. Register summary 9. With the first register visible, select the + icon to begin the definition of the next register. Figure 22. Defining additional registers Repeat the process for any additional registers. In this example, the first register is associated with the position setpoint for a Modbus actuator.
Page 23: Export And Import
Configuration of CM2 Module — Modbus and Ethernet Settings Figure 24. Save Modbus setup Export and Import Use the Export and Import capability to use the configuration of one device to simplify the definition of a similar device on a different controller. With the definition of the Modbus device complete, select the Export button to create a representation of the device.
Page 24 Configuration of CM2 Module — Modbus and Ethernet Settings Figure 26. Save and export image 3. Connect to the next device and import the saved device image. Figure 27. Import 4. Select the exported file from the appropriate directory. Figure 28. Import — select file 5.
Page 25: Create Template
Configuration of CM2 Module — Modbus and Ethernet Settings Figure 29. Modbus Client summary Create Template Use the template capability to use the configuration of one device to simplify the definition of one or more similar devices on the same controller. 1.
Page 26 Configuration of CM2 Module — Modbus and Ethernet Settings Figure 31. Create template selection To configure another device using the saved template, select Add Device Using Template under the Actions button. Figure 32. Create device using template 4. Select the specific saved template for the creation of another device. BAS-SVX094A-EN...
Page 27: Advanced Mode
Configuration of CM2 Module — Modbus and Ethernet Settings Figure 33. Select the template 5. Rename the template information, including a unique device name (do not use spaces or special characters) and unique Modbus address that corresponds to the device address. Figure 34.
Page 28: Create Custom Block
Configuration of CM2 Module — Modbus and Ethernet Settings Figure 35. Enable Advanced Mode For both coil status and discrete input status, advanced mode allows the user to select 1-32 contiguous addresses. For both input registers and holding registers, advanced mode allows the user to select up to 16 consecutive bits.
Page 29 Configuration of CM2 Module — Modbus and Ethernet Settings Figure 37. Define the beginning block address 4. In front of the newly created register, select the pencil icon to edit the size of the desired custom block. BAS-SVX094A-EN...
Page 30 Configuration of CM2 Module — Modbus and Ethernet Settings Figure 38. Edit block size 5. As shown in Figure 39, p. 31 Figure 40, p. 32 the custom block checkbox, then first (offset of the first coil/register) and count (total number of coils). For registers defined as write registers, and when applicable, select the checkbox to force the Modbus Client to write multiple coils/registers as a bundle.
Page 31 Configuration of CM2 Module — Modbus and Ethernet Settings Figure 39. Custom register definition — write 7. For blocks defined with read capability, not write, the option to Force Write Multiple appears. In those cases, the first and count parameters represent the same definition as above. BAS-SVX094A-EN...
Page 32 Configuration of CM2 Module — Modbus and Ethernet Settings Figure 40. Custom register definition — read 8. To view/edit the contents of the custom block, expand the arrow at the left of the tree, as shown below. BAS-SVX094A-EN...
Page 33: Use Bitmap Mask
Configuration of CM2 Module — Modbus and Ethernet Settings Figure 41. Expand the custom block definition 9. When appropriate, use the + icon for the custom block to add additional register definition inside the block. 10. With the definition complete, check the box for the register(s), select Actions, then Create Point (s) from Selected Devices.
Page 34: Modbus Register Status
Configuration of CM2 Module — Modbus and Ethernet Settings • Use Bitmask option is only available in Advanced Mode and when the Data Type is set to Unsigned Integer, Signed Integer, Unsigned Long, Signed Long, or Float. • When Use Bitmask is selected, 32 selection boxes numbered from 0 to 31 are displayed. Each box represents a bit in the register.
Page 35: Bacnet Point Creation
Configuration of CM2 Module — Modbus and Ethernet Settings Figure 44. Status and refresh Press the refresh button to retrieve and display the most recent values for each register. Figure 45. Status and refresh If the information shown for the status is different than expected, consult the manufacturer’s documentation, and use Tracer TU to confirm the setup of each register.
Page 36 Configuration of CM2 Module — Modbus and Ethernet Settings Figure 47. Create BACnet points BACnet objects are automatically created for each selected register without requiring additional information. For each BACnet object created, the point type is automatically defined as follows: Table 3.
Page 37: Test The Bacnet/Modbus Functionality
After the creation of the BACnet points for each Modbus register, confirm the functionality of each using Tracer TU. In addition to Tracer TU, consider the use of Trane’s SerialSpy to confirm the Modbus data passed between client and server.
Page 38 Configuration of CM2 Module — Modbus and Ethernet Settings Figure 51. Overriding BACnet points 4. In the override request pop-up, edit the requested value, duration limit, and priority level for the point. Figure 52. Override request pop-up 5. Press Apply. 6.
Page 39 Configuration of CM2 Module — Modbus and Ethernet Settings Figure 53. BACnet Value/Status 8. With the functionality confirmed and testing completed, release all overridden points as appropriate. BAS-SVX094A-EN...
Page 40: Ethernet Settings
Ethernet Settings Use Tracer TU to connect to the Symbio controller: 1. With the controller connected, from the Status Utility page, select Controller Settings. 2. Expand the section for IP Settings. Note: User cannot connect two TD7 displays simultaneously. In case if two TD7 displays were connected, then there will be a pop-up with warning message.
Page 41 Select this option to manually enter a static IP address specific to the application and network. Wi—Fi Addressing Section Enable Wi-Fi Check this box if the Wi-Fi dongle is to be used. Uncheck this box if the Trane Wi-Fi Module is not used or if the customer’s IT professionals prefer it be disabled. MAC Address Available if the customer’s IT professionals require the MAC address for firewall rules, opening...
Page 42: Troubleshooting
Troubleshooting Problem Possible Cause Possible Solution No LEDs are ON / Power LED is not ON No power • Check USB cable connection / Cable condition. • Check Symbio controller’s Power. Modbus LEDs are not Blinking Modbus RS485 cable not connected / •...
Page 43 Notes BAS-SVX094A-EN...
Page 44 For more information, please visit trane.com or tranetechnologies.com. Trane has a policy of continuous product and product data improvements and reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.