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Thermon Genesis Panel Components and CANBUS addressing

Component overview and addressing the components CANBUS ID

Purpose:

This knowledge base article aims to offer an overview of the Genesis panel components and provide guidance on assigning a CANBUS ID to these components. It serves as a comprehensive resource for users to understand the various components of the Genesis panel and the process of configuring CANBUS IDs for effective system operation.

The HMI Module:

The HMI (Human Machine Interface) functions as the primary monitoring and control hub for a Genesis Controller control and monitoring system. It provides operators with access to essential control parameters and operating conditions across the heat tracing system network. Through direct communication via CAN bus, or external to ATCOM+ via Ethernet Modbus TCP/IP, the HMI interfaces seamlessly with other Genesis Controller modules.

DCM (Distributed Control Module)

The DCM (Distributed Control Module) delivers 24 Vdc output to solid-state and/or mechanical relays. Additionally, it offers measurement capabilities for heater current and earth leakage current across up to six (6) independent heaters/circuits.

Each panel requires at least one (1) DCM, capable of controlling up to six (6) independent heat trace circuits. Each circuit is assigned a unique sub-address ranging from 1 to 6 for proper identification and management.

DTM (Distributed Temperature Module)

The DTM (Distributed Temperature Module) is DIN rail mountable and a crucial component in every panel setup. Each panel includes at least one (1) DTM, capable of receiving inputs from up to six (6) individually identified RTD temperature sensors.

With six (6) sub-addresses, the DTM distinguishes each of these sensors, facilitating monitoring and control. Once configured on the panel's unique address, any RTD sensor can be mapped to any heater circuit, offering flexibility in system configuration.

A single RTD sensor can provide temperature information for an entire Genesis Controller, streamlining monitoring processes. However, in critical process control scenarios, an individual EHT circuit can accommodate multiple sensors, with up to twenty (20) RTD sensors per heater.

 

IOM (Input-Output Module)

The IOM (Input-Output Module) is a DIN rail mountable component dedicated to managing input and output functions tailored to the system's specific requirements and design. Each Genesis Controller includes at least one (1) IOM, responsible for providing system fault and common alarm output functionalities.

IOM
Sub-address
I/O Default LED State Alarm LED State Function
1 Output ON OFF Common Alarm
2 Output ON OFF Circuit Trips
3 Output ON OFF HIgh Temperature Alarm
4 Output ON OFF Low Temperature Alarm/ RTD Fault
5 Input -- -- Load Shed (Force Off)
6 Input -- -- Force On
7 Output ON OFF System Fault Alarm

 

Genesis Controller Modules Address Settings:

The DCM (Distributed Control Module), DTM (Distributed Temperature Module), and IOM (Input-Output Module) are assigned a two-digit address code each. This code serves to identify each module through the CAN bus to the HMI (Human Machine Interface). It's important to note that the HMI does not have a two-digit code.

There are ninety-nine (99) addresses available for Genesis Controller modules, ranging from 01 through 99. However, "00" is not a valid code. It's imperative that no two modules within a panel share the same code.

Below are the available address settings for each of the Genesis Controller modules:

Module  CAN Address
DCM 1-20
DTM 21-80
IOM 81-99
HMI Blank

At least one module placed at the end of the CAN bus line must have terminator enabled. Typically, these are the modules that do not have a cable split at the CAN bus connector.

Setting the address:

To set the address, press and hold the button for 1 second until the address begins to flash. Then, press the button again to cycle through the address numbers sequentially. The new address will flash for five seconds, after which it will be set.

Enabeling the terminator:

To enable terminator, press and hold the button on the specific DCM, DTM, and/or IOM until "En" (meaning Enable) flashes. Release the button, then toggle again to switch from OFF to ON. The set value will be displayed for 5 seconds before returning to show the node ID address.

When the terminator is set to ON, the terminator LED indicator will illuminate.