DCP200 Profile Controller & Recorder - Product Manual

13 Modbus Parameters

The Modbus parameter register addresses are detailed in the tables below.

The Access column indicates if a parameter is read only (RO) or if it can also be written to (R/W). Communications writes will not be implemented if the Writing Via Serial Comms parameter in the Communications Configuration menu is set to Disabled.

Note:

Some parameters that do not apply for a particular configuration will accept reads and writes (e.g. attempting to scale a Linear output which has not been fitted). Read only parameters will return an exception if an attempt is made to write values to them.

Data Formats

Data can be read or written in three formats: Integer Only, Integer with 1 Decimal Place and Floating Point Number.

The Modbus Address column shows the register address for each parameter in integer format. Other formats can be calculated from the Integer Only address.

When working in Hexadecimal, the format calculations are:

Address for Integer with 1 Decimal Place = Integer address plus 0x4000 Address for Floating Point = Integer address multiplied by 2, plus 0x8000

When working in Decimal, the format calculations are:

Address for Integer with 1 Decimal Place = Integer address plus 16384 Address for Floating Point = Integer address multiplied by 2, plus 32768

Example Register Address Calculations

Calculating Parameter Register Addresses

 

 

 

 

 

 

 

 

Integer Only

 

 

Integer+1

 

 

Floating Point

 

 

 

 

Register Address Calculation

 

(hex)

 

Address

 

 

Address + 0x4000

 

Address x 2 + 0x8000

 

 

 

 

(dec)

 

Address

 

 

Address + 16384

 

Address x 2 + 32768

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Address Example:

 

 

(hex)

 

 

0x0407

 

 

0x4407

 

 

0x880E

 

 

 

 

(For Process Variable)

 

 

(dec)

 

 

1031

 

 

17415

 

 

34830

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data Value Returned:

 

 

(hex)

 

 

0x00, 0x17

 

 

0x00, 0xEF

 

 

0x41, 0xBF, 0x33, 0x33

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If actual Value = 23.9 decimal

 

 

(dec)

 

 

23

 

 

239

 

 

23.9 as floating decimal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Address Example:

 

 

(hex)

 

 

0x101F

 

 

0x501F

 

 

0xA03E

 

 

 

 

(For Selected Setpoint)

 

 

(dec)

 

 

4127

 

 

20511

 

 

41022

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data Value Returned:

 

 

(hex)

 

 

0x00, 0x01

 

 

0x00, 0x0A

 

 

0x3F, 0x80, 0x00, 0x00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If Value = 1 (Alternative SP)

 

 

(dec)

 

 

1

 

 

10

 

 

1.0 as floating decimal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

51-52-25-150, Issue 1 – April 2009

Modbus Parameters

Page 83

Page 82 Page 84
Page 83
Image 83
Honeywell DCP200 manual Modbus Parameters, Data Formats, Example Register Address Calculations
Page 82 Page 84

DCP200 specifications

The Honeywell DCP200 is an advanced distributed control platform designed to enhance efficiency, reliability, and flexibility in industrial automation. With a robust architecture capable of supporting a wide range of applications, the DCP200 is perfect for sectors including oil and gas, chemical processing, power generation, and manufacturing.

One of the key features of the Honeywell DCP200 is its scalability. It can be easily expanded to accommodate increasing demands, making it suitable for both small operations and large enterprises. This flexibility allows industries to adopt the system gradually, integrating it into their existing processes without substantial downtime or a steep learning curve.

The DCP200 is built on open standards, facilitating seamless integration with third-party systems and equipment. This compatibility ensures that companies can leverage existing infrastructures and investments, fostering a more cohesive operational environment. Enhanced interoperability is achieved via industry-standard communication protocols, enabling devices to communicate fluently across diverse platforms.

Another significant characteristic of the DCP200 is its powerful data acquisition and processing capabilities. The system utilizes state-of-the-art data analytics tools to monitor real-time information, enabling better decision-making and predictive maintenance. This proactive approach helps in reducing downtime, optimizing performance, and ultimately driving operational excellence.

The DCP200 system supports a wide range of input and output options, ensuring it can interface with various sensors, actuators, and control devices. This adaptability contributes to its function as a central hub for industrial monitoring and control, enhancing data visibility and operational responsiveness.

Security is a top priority for Honeywell, and the DCP200 employs robust cybersecurity measures to protect critical infrastructure. The system includes advanced authentication protocols and data encryption techniques, safeguarding sensitive information from unauthorized access and potential cyber threats.

User experience is also a focal point of the DCP200. The platform features an intuitive graphical user interface that simplifies navigation and enhances operator engagement. Customizable dashboards provide at-a-glance insights into system performance, aiding both operators and management in identifying areas for improvement.

In conclusion, the Honeywell DCP200 is an innovative distributed control platform that marries flexibility, scalability, and security. With its comprehensive feature set and commitment to seamless integration, it stands as a vital tool for companies aiming to enhance their automation efforts and drive operational success in an increasingly complex industrial landscape.
Top Page Image Contents