The CECIP campaign focusses on the impact of weighing in daily life and in the operations of businesses. Although businesses generally understand the need for weighing, it is not always understood what the impact of inaccurate weighing could be. Yet, it can impact the core business when weighing results are not correct. For production companies inaccurate weighing of ingredients or parts can harm the quality of the final products. This is not always clear and CECIP hopes more business will be conscious about the importance of reliable weighing and the consequences weighing accuracy can have on their operations.
Overall, the campaign aims at making consumers, users and buyers of weighing instruments understand that weighing is not just the value you see on the display of a scale, but a vital process that contributes to our world functioning smoothly.
As part of the campaign the key messages will be spread via social media, magazines and the dedicated website: www.worldwithweighing.com.
A&D scales and balances have always been an excellent choice when it comes to data transfer to a computer, printer or other devices. With a data format that has remained virtually unchanged throughout the company’s history, we have seen customers replace decades-old balances with new ones without having to adapt their existing data acquisition software.
This does not mean that the communication capabilities of A&D balances are not evolving. The new GX-A, GF-A and GX-AE models are particularly interesting because they are equipped with multiple interfaces and can be controlled by a connected computer (or PLC) via a large number of commands.
To give you an idea, you’ll find the table of contents from the communications manual below:
Features of the communication function
Using standard RS-232C / extension RS-232C interface
Using standard USB interface
Connecting multiple peripheral devices
Connecting Peripheral Devices
Cables needed to connect to peripheral devices
About data output method
Specific examples when connecting multiple peripheral devices at the same time
Printing Weighing Values To the Printer
In case of AD-8127
In case of AD-8126
Connecting to a PC or a PLC
Quick USB mode
Virtual COM mode
WinCT data transmission software (USB Virtual COM mode or RS-232C)
Notes when using quick USB
Data output mode
Weighing data format
Output examples of weighing data format
Other data formats
The <AK> code and error codes
Command usage examples
Error codes list
The UFC function
UFC program commands
Examples of creating UFC program commands
How to set
List of items (communication entries only)
Key lock function
Locking all key switches
Locking specified key switches
Checking the software version of the balance
One of my favorite things about this manual are the examples, which clearly presented and easy to follow:
Is something still missing?
In my opinion, this is the best communication manual I’ve seen from any weighing instrument manufacturer so far.
My only suggestion for improvement as far as the manual itself is concerned is to add a warning symbol next to the footnote on page 6, which mentions the 12 V voltage on pin 9. When connecting the balance to a device which also uses pin 9 in this way (such as Zebra printers), both devices could malfunction and possibly be damaged. To prevent this from happening, a custom cable must be used instead of a standard cable that connects all pins.
Tare weight and gross weight
When the tare weight is set by the operator by pressing the RE-ZERO button on the balance, it is not returned when using the “?PT” or “?T” commands. This is mentioned in the manual, but no explanation is given. It is also not possible to request the gross weight. Therefore, applications which require this data have to be designed so that the tare operation is triggered by the connected device (see example above).
Note: The UFC template language available on the GX-A/AE and GF-A balances allows the tare weight and gross weight (and of course net weight) to be sent to a connected device.
Ethernet, WiFi, Bluetooth
An Ethernet interface is optionally available, but it costs several times more than an external converter (such as Moxa’s NPort 5110A). If it was more affordable, it would attract more customers planning to connect multiple balances to a single PC for data acquisition purposes.
No wireless LAN option exists (so far). The Bluetooth adapter for the RS-232 interface is unfortunately not available in Europe. This makes it somewhat difficult to use the balances under a fume hood and transferring the weight to a computer outside.
A&D could make the balances more compatible with existing systems by adding support for the MT-SICS protocol. While MT-SICS is not the holy grail of all protocols, it is widely used and supported in the weighing industry and by software developers. With companies such as Sartorius, Radwag, Kern (KCP) and Ohaus (on some models) offering support for what is effectively MT-SICS, I see no compelling reason why A&D could not do the same.
The balances already understand the “S”, “SI” and “SIR” commands also used by MT-SICS. When set to the “MT” data format, they come very close to sending the same replies as MT-SICS-compatible weighing instruments:
First line: character/byte number Second line: A&D’s MT format (stable weight) Third line: MT-SICS format (stable weight)
Finally, while these balances support many commands covering a lot of functionality, it’s not possible to read and change most of the settings by using commands. If this were an option, a connected computer with a configuration software could change the balances’ settings in a quick and user-friendly way. With new technologies such as WebUSB, it may eventually be possible to change the configuration of the balance directly from a web browser.
Further information on GX-A, GF-A and GX-AE precision balances