Chapter 5 - MODBUS-RTU Communication

Example) Command Message (Request) for reading one address from address ‘3000’

 

 

 

 

The Number

 

 

ENQ

Drive No.

CMD

Address

of address to

SUM

EOT

 

 

 

 

read

 

 

05h

“01”

“R”

“3000”

“1”

“A7”

04h

1 byte

2 bytes

1 byte

4 bytes

1 byte

2 bytes

1 byte

SUM = ‘0’ + ‘1’ + ’R’ + ‘3’ + ‘0’ + ‘0’ + ‘0’ + ‘1’

=30h + 31h + 52h + 33h + 30h + 30h + 30h + 31h

=1A7h

5.6.3Detail Communication Protocol

Request for Read: Request for read ‘n’ numbers of WORD from address ‘XXXX’.

 

ENQ

 

 

Drive No.

 

 

CMD

 

 

Address

 

 

The number

 

SUM

 

 

EOT

 

 

 

 

 

 

 

 

 

 

of address to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

read

 

 

 

 

 

 

 

 

05h

 

 

 

 

“01” ~

 

 

“R”

 

 

“XXXX”

 

 

“1” ~ “8” =

 

“XX”

 

 

04h

 

 

 

 

 

 

“1F”

 

 

 

 

 

 

n

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 byte

 

 

 

2 bytes

 

1 byte

 

 

4 bytes

 

 

1 byte

 

2 bytes

 

 

1 byte

 

Total byte = 12 bytes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The quotation marks (“ ”) mean character.

 

 

 

 

 

 

 

 

 

 

 

Acknowledge Response

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACK

 

 

 

 

Drive No.

 

CMD

 

 

 

Data

 

SUM

 

 

 

EOT

 

 

06h

 

 

 

 

“01” ~ “1F”

 

“R”

 

 

“XXXX”

 

“XX”

 

 

 

04h

 

 

1 byte

 

 

 

 

2 bytes

 

1byte

 

 

N * 4 bytes

 

2 bytes

 

 

 

1 byte

 

Total byte = 7 * n * 4 = max. 39 bytes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Negative Acknowledge Response

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NAK

 

 

 

 

Drive No.

 

CMD

 

 

Error Code

 

SUM

 

 

 

EOT

 

 

15h

 

 

 

 

“01” ~ “1F”

 

“R”

 

 

 

“**”

 

“XX”

 

 

 

04h

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 byte

 

 

 

 

2 bytes

 

1 byte

 

2 bytes

 

2 bytes

 

 

 

1 byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total byte = 9 bytes

78

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Page 84
Image 84
Cleveland Range inverter manual Detail Communication Protocol, Negative Acknowledge Response
Page 83 Page 85

inverter specifications

The Cleveland Range inverter is a state-of-the-art piece of kitchen equipment designed to elevate cooking efficiency and precision in commercial kitchens. This versatile appliance is particularly well-suited for establishments such as restaurants, cafeterias, and catering operations, where high-performance and reliability are critical to success.

One of the standout features of the Cleveland Range inverter is its innovative inverter technology. Unlike traditional cooking equipment that utilizes standard heating elements, the inverter system allows for continuous, variable power control. This means that cooks can seamlessly adjust the cooking temperature, offering unparalleled control over the cooking process. The result is more consistent cooking outcomes and a significant reduction in food preparation time, ensuring that dishes are cooked just right every time.

Another characteristic that sets the Cleveland Range inverter apart is its energy efficiency. The inverter technology not only enhances cooking precision but also utilizes energy more effectively, leading to reduced power consumption. This is particularly beneficial for commercial kitchens where energy costs can quickly add up. By minimizing energy waste, the Cleveland Range inverter contributes to a more sustainable kitchen operation.

Safety is also a prime focus of the Cleveland Range inverter. With built-in safety features such as automatic shut-off functions, the appliance ensures that accidental overheating or overcooking is avoided, safeguarding both the kitchen staff and the food being prepared. Additionally, the design of the inverter is user-friendly, making it accessible for cooks at all experience levels.

Durability and ease of maintenance are further characteristics of the Cleveland Range inverter. Built with high-quality materials and a robust construction, it is designed to withstand the rigors of a busy kitchen environment. The straightforward design allows for easy cleaning and maintenance, ensuring that the inverter remains in top working condition over its lifespan.

In conclusion, the Cleveland Range inverter stands out in the commercial kitchen landscape due to its innovative inverter technology, energy efficiency, safety features, and durability. It is an excellent investment for any culinary operation looking to enhance its cooking capabilities while maintaining high standards of food quality and safety. This appliance not only meets the demands of modern kitchens but also sets a benchmark for others in the industry.
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