24.1 RS485 command strings

Command

Parameters

Meaning

 

 

 

nCA

-

Clear LCD display

nCH

-

Home the cursor

 

 

Set and run one dose of xxxxxxxxxx

nDO

xxxxxxxxxx<,yyyyy>

tacho pulses, with optional drip of yyyyy

 

 

(maximum 11,000) tacho pulses. See

 

 

note 1

nTC

-

Clear the cumulative tachometer count

nSP

xxx.x

Set speed to xxx.x rpm

nSI

-

Increment speed by 1rpm

nSD

-

Decrement speed by 1rpm

nGO

-

Start running

nST

-

Stop running

nRC

-

Change direction

nRR

-

Set direction to clockwise

nRL

-

Set direction to counter-clockwise

nRS

-

Return status. See note 2

nRT

-

Return the cumulative tachometer count

 

[line 1]~[line 2]~

Display text on 1 to 4 lines with ~ as

nW

the line delimiter. Terminated by the @

[line 3]~[line 4]@

 

character. See note 3

 

 

nZY

-

Return 0 for stopped or 1 for running

 

 

 

Note 1: The correlation between tachometer pulses and motor rotation is fixed and provides a measurable and absolute way of monitoring the number of rev- olutions of the gearbox output shaft - 10,982 pulses per revolution. This in turn allows the count to be equated to the amount of material dispensed - assuming that the pumphead type and tube size are known.

Note 2: The status is returned to the sender in the following format: [pump type] [ml/rev] [pumphead] [tube size] [speed] [CW/CCW] P/N [pump number] [tacho count] [0/1 (stopped/running)] !

For example: 520Du 15.84 520R 9.6MM 220.0 CW P/N 1 123456789 1 !

Note 3: If the pump speed is changed subsequently, the pump must display the screen shown here (example figures only) for 4 seconds before reverting to the custom display. 1 to 4 lines of text can be written with ~

as the line delimiter and @ as the message end.

i.e., 1W520Du@ and 1W520Du~@ are both valid commands.

Note 4: In all cases 'n' can be any number from 1 to 32 inclusive, and by excep- tion the # symbol can be used as an all-drives command; but not with the RS, RT or ZY commands, as the results would be indeterminate.

Watson-Marlow 520DuN IP66/NEMA 4X User Manual

76

Page 75 Page 77
Page 76
Image 76
Watson & Sons 520DUN user manual 24.1 RS485 command strings, Command Parameters Meaning
Page 75 Page 77

520DUN specifications

Watson & Sons 520DUN is a state-of-the-art model that has garnered attention for its exceptional performance and innovative technologies. Designed for agricultural applications, this machine combines durability, efficiency, and ease of use, catering to the needs of modern farmers.

One of the standout features of the 520DUN is its robust engine. Equipped with a high-performance diesel engine, it offers impressive horsepower, allowing it to handle a variety of demanding tasks with ease. This engine is designed for fuel efficiency, ensuring that operators can complete their work without frequent refueling. The powertrain is complemented by an advanced transmission system that enables smooth gear shifts, enhancing operator comfort during long hours of operation.

The 520DUN also boasts a remarkable load capacity, making it an ideal choice for transporting heavy materials. Its rugged build quality ensures that it can withstand the rigors of daily use, providing a reliable solution for farmers and contractors alike. The robust chassis and reinforced components were designed to maintain stability and control, especially when navigating uneven terrain.

Incorporating cutting-edge technologies, the Watson & Sons 520DUN features precision farming capabilities. With GPS integration, operators can efficiently manage their fields, optimizing planting and harvesting processes. This technology not only increases yield but also minimizes inputs, making farming more sustainable and economically viable.

User ergonomics were a significant consideration in the design of the 520DUN. The operator's cabin is spacious and well-equipped with intuitive controls, providing a comfortable working environment. Operators will appreciate the advanced display panel that offers real-time data on performance metrics, fuel consumption, and maintenance reminders. This allows users to keep the machine in peak condition and react to any issues promptly.

Safety is also paramount in the design of the 520DUN. It features reinforced safety measures, including roll-over protection systems and visibility enhancements, ensuring operator safety during operations.

In summary, the Watson & Sons 520DUN represents the pinnacle of agricultural machinery with its powerful engine, remarkable load capacity, precision technology, and ergonomic design. It is tailored for those who seek reliability and efficiency in their agricultural endeavors, making it a noteworthy choice in today's competitive market.
Top Page Image Contents