All instruments on the interface must be set to the same baud rate and all must be powered on, otherwise instruments further down the daisy chain will not receive any data or commands.

The other parameters are fixed as follows:

Start Bits:

1

Parity: None

Data Bits:

8

Stop Bits: 1

RS232 Character Set

Because of the need for XON/XOFF handshake it is possible to send ASCII coded data only; binary blocks are not allowed. Bit 7 of ASCII codes is ignored, i.e. assumed to be low. No distinction is made between upper and lower case characters in command mnemonics and they may be freely mixed. The ASCII codes below 20H (space) are reserved for addressable RS232 interface control. In this manual 20H, etc. means 20 in hexadecimal

Addressable RS232 Interface Control Codes

All instruments intended for use on the addressable RS232 bus use the following set of interface control codes. Codes between 00H and 1FH which are not listed here as having a particular meaning are reserved for future use and will be ignored. Mixing interface control codes inside instrument commands is not allowed except as stated below for CR and LF codes and XON and XOFF codes.

When an instrument is first powered on it will automatically enter the Non- Addressable mode. In this mode the instrument is not addressable and will not respond to any address commands. This allows the instrument to function as a normal RS232 controllable device. This mode may be locked by sending the Lock Non-Addressable mode control code, 04H. The controller and instrument can now freely use all 8 bit codes and binary blocks but all interface control codes are ignored. To return to addressable mode the instrument must be powered off.

To enable addressable mode after an instrument has been powered on the Set Addressable Mode control code, 02H, must be sent. This will then enable all instruments connected to the addressable RS232 bus to respond to all interface control codes. To return to Non-Addressable mode the Lock Non-Addressable mode control code must be sent which will disable addressable mode until the instruments are powered off.

Before an instrument is sent a command it must be addressed to listen by sending the Listen Address control code, 12H, followed by a single character which has the lower 5 bits corresponding to the unique address of the required instrument, e.g. the codes A-Z or a-z give the addresses 1-26 inclusive while @ is address 0 and so on. Once addressed to listen the instrument will read and act upon any commands sent until the listen mode is cancelled.

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Xantrex Technology XDL 35-5TP manual RS232 Character Set, Addressable RS232 Interface Control Codes

XDL 35-5T, XDL 35-5TP specifications

Xantrex Technology has established itself as a leader in the power conversion industry, and their XDL series, specifically the XDL 35-5TP and XDL 35-5T, exemplifies their commitment to innovation and reliability in power management solutions. Designed for a variety of applications, these models offer high performance and efficiency, catering to both professional and recreational users.

The XDL 35-5TP is recognized for its robust design and versatility, suitable for various applications, including battery charging, powering electronic devices, and supporting other power equipment. It features a maximum output of 35 amps and can deliver a continuous power supply sufficient for multiple devices. The integrated temperature monitoring ensures optimal performance and longevity, while the built-in safety features protect against overloads and short circuits.

One of the standout features of the XDL 35-5TP is its advanced microprocessor control, which allows for smart charging profiles. This technology not only increases efficiency but also extends battery life by managing the charging cycle meticulously. Users can take advantage of adjustable charging voltage settings, making the XDL 35-5TP compatible with various battery types, including lead-acid and lithium-ion.

The XDL 35-5T, on the other hand, while sharing many of the core features of the TP model, focuses more on size and weight optimization without compromising power delivery. This makes it an excellent choice for mobile users and those with limited installation space. Both models boast a durable design, suitable for harsh environmental conditions, ensuring reliability whether used in marine, automotive, or off-grid applications.

In terms of connectivity, the XDL series includes multiple output options, allowing users to connect various devices seamlessly. The front-mounted display panel gives real-time feedback on battery status and system performance, enabling informed management of power resources. Additionally, both models are engineered to minimize electromagnetic interference, ensuring operation without disrupting other electronic systems.

Overall, the Xantrex XDL 35-5TP and XDL 35-5T represent cutting-edge solutions in power technology, combining innovative features with practical usability. Their high efficiency, safety protocols, and flexibility in applications make them an excellent choice for users seeking reliable power solutions in diverse settings. Whether for recreational vehicles, boats, or emergency backup, the XDL series stands out as a testament to Xantrex's commitment to quality and performance in power conversion technology.