Lets suppose that a RF Terminal and a Base Station have been processing data by sending prompts and data back and forth as described in example 1. The Base Station sends a data prompt to the RF Terminal, the RF Terminal transmits the operator-entered data back to the Base Station. If the host program has another prompt for the terminal, the Base sends it out, repeating the process above.

Suppose the host program does not have a prompt ready to send back to the Terminal; the Terminal transmits its data to the Base Station but does not receive a new data prompt. The Terminal then retransmits its data (it thinks maybe the host didn’t receive it) and waits for a response.

Once the terminal has received a prompt back from the host, the time it took the host to respond is sent to the Terminal. For all subsequent transmissions, the terminal goes to sleep until the time it took the last time for the host to respond has expired; then the terminal wakes up and listens. If it has nothing, it retransmits its data and waits for a response.

The original data transmission could have collided with another message, or the Base could have received the Terminal's data but had not yet received the host's prompt response. If the previous transmission got through, the Base Station knows that the data is a retransmission rather than a new data transmission so it sends a message to the Terminal telling it:

“I have nothing for you from the host, go to sleep”.

While in “sleep” mode, the Terminal “wakes” up at a random interval and asks “do you have anything for me yet”, waiting for either a “go to sleep” message or a new data prompt. After each delays, the Terminal displays:

WAITING FOR HOST PROMPT

If a Terminal receives no response at all from a Base Station (no data prompt or “go to sleep” message), it retransmits its data and waits for a response. If the Terminal gets no response after 10 re-transmissions, it assumes it is out of range from the Base Station with which it was communicating, and attempts of establish contact with any Base Station. If the Terminal can't contact any Base Station, it displays:

TRANSMISSION FAILED

HIT ANY KEY_

Pressing a key on the Terminal starts the re-transmission process over again. The RF Terminal will try to retransmit its data, displaying the TRANSMISSION FAILED message after every 10 unsuccessful tries.

Can I change a prompt after it has been sent?

Normally once the Terminal has received a prompt from the host, it goes to sleep and waits (as long as it takes) for the operator to scan or key something in response. The host cannot send another prompt without creating a "Sequence Error." You might want to change the prompt or locate a lost terminal with beeping.

There is a special setting in the RF Terminal Setup in which you specify the time (between 5 seconds and 7 minutes) you want the Terminal to quit waiting for input from the operator, blank the screen, send back a special control character to the host program, display "Waiting on Host Prompt" and wait for a prompt from the host application program; the host application program can choose to send back different instructions or simply repeat the previous prompt's instructions, (See Automatic Check Back in the Programming Section).

How the One-Way RF System works

The RF System can be used to perform “dumb” data entry to the computer – you could even use Portkey to transmit the data through a serial connected Base as though it has been entered from the keyboard. This is useful if you want to enter data directly into an application. This type of data transmission is called One-Way

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Worth Data 7000 manual How the One-Way RF System works, Can I change a prompt after it has been sent?
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7000 specifications

The Worth Data 7000 is an advanced data collection and management device designed for various applications, including inventory control, asset tracking, and point-of-sale transactions. This versatile handheld device excels in environments requiring efficiency and reliability, making it a popular choice for businesses looking to optimize their operational workflows.

One of the standout features of the Worth Data 7000 is its robust barcode scanning capabilities. Equipped with a high-quality scanner, it can read a wide range of barcode formats, including 1D and 2D barcodes. This versatility ensures that users can seamlessly integrate the device into existing systems and easily manage different types of inventory, thereby reducing errors and improving data collection accuracy.

The Worth Data 7000 leverages advanced wireless technology, including Bluetooth and Wi-Fi connectivity, allowing for real-time data transfer to cloud-based systems or local servers. This capability is crucial for businesses that require instantaneous updates and access to critical information across multiple locations. The device is also compatible with various mobile applications, enhancing its functionality and enabling users to perform transactions and updates remotely.

In terms of hardware, the Worth Data 7000 features a durable design that meets the demands of industrial and retail environments. Its rugged casing is designed to withstand drops, impacts, and exposure to dust and moisture, ensuring longevity and reliability in challenging conditions. The device is also equipped with an intuitive touchscreen interface, making it user-friendly and accessible, even for those with minimal technical skills.

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In conclusion, the Worth Data 7000 stands out as a powerful tool for data collection and management, thanks to its superior barcode scanning capabilities, robust connectivity options, durable design, extended battery life, and flexibility in software applications. Whether for retail, warehouse management, or asset tracking, it is a reliable choice for businesses looking to enhance their operational efficiency and improve data accuracy.
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