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Xantrex Technology RS232-XPD To choose XON/XOFF protocol, select the XON switch position shown in

Models: RS232-XPD

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To choose XON/XOFF protocol, select the XON switch position shown in

Installation and Configuration

Communications

Once flow control is selected as option, two flow control methods are available. You can use the rear panel XON switch to select either software-based XON/XOFF flow protocol or hardware-based CTS/RTS or DTR/DSR flow protocol. Table 2.4 shows the flow control conditions with regards to the markings on the rear panel subplate. For a diagram of the rear panel subplate, see Figure 2.2, on page 17.

Table 2.4 Hardware/Software Flow Control Selection

XON Switch Setting	Condition
1	Hardware Flow Control
	(CTS/RTS or DTR/DSR protocol)
0	Software Flow Control
	(XON/XOFF protocol)

Software This software protocol uses special characters that synchronize device

Flow Control communications. The device sends the control code XOFF (ASCII value 13 hex) when it is not ready to receive data. The device sends the control code XON (ASCII value 11) when it is ready to resume receiving data.

To choose XON/XOFF protocol, select the XON switch position shown in

Table 2.4.

Hardware Hardware flow control protocol requires a dedicated control line on the RS-232 Flow Control cable. The dedicated control line is needed so that the device can signal the controller

when it is ready to receive data. You can designate either RTS/CTS or DTR/DSR protocol for the RS-232 interface.

Set the XON switch for hardware control using the information in Table 2.4. With hardware flow control selected, RS-232 Interface PCB jumpers J16 and J17 dictate the type of flow protocol. Table 2.5, “Jumper/Pin Settings for RTS/CTS Flow Control (Default)” and Table 2.6, “Jumper/Pin Settings for DTR/DSR Flow Control (Default)” identify jumper connections and input and output pin designations for each protocol. See also “Transmit / Receive Pin Selection” on page 22 for RS-232 connector pinouts.

Note:When resetting the flow control switches during a working session, turn the power supply OFF and then ON again to ensure that the new settings are put into effect.

Table 2.5 Jumper/Pin Settings for RTS/CTS Flow Control (Default)

	Jumper Connections	RS-232 Connector Pin
RTS (Input to RS-232)	J17 to 2-4 and 3-5	7

CTS (Output to RS-232)	J16 to 1-3 and 4-6	8

Release 1.2

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Xantrex Technology RS232-XPD manual To choose XON/XOFF protocol, select the XON switch position shown in

Contents

Operating Manual Internal RS-232 Interface for XPD Series Programmable DC Power SupplyRS232-XPD Page Operating Manual for Internal RS-232 Interface for XPD 500 Watt SeriesProgrammable DC Power Supply Limited Warranty How do you get service?Proof of purchase may be in any one of the following forms Disclaimer Product WARNING Limitations on Use Information About Your Power SupplySupply PowerSafety Warnings Cautions and Notesfeatures and specifications Main SectionsManual Revisions Features and Specifications Describes the interface and lists itsAbout This Manual Operating Manual for RS-232 for XPD Series Power SupplyConfiguration Section Operation ContentsSection Features and Specifications Section Installation and Contents Description Section 1. Features and SpecificationsReadback Functions Features and FunctionsFeatures 7.5-67 SpecificationsFeatures and Specifications ModelsOperating Manual for RS-232 for XPD Series Power Supply Features and SpecificationsSpecifications Initial Inspection Section 2. Installation and ConfigurationIntroduction Initial Inspection Installation and ConfigurationFigure 2.1Power Supply Front Panel with RS-232 Interface Installed Operating Manual for RS-232 for XPD Series Power SupplyInitial Inspection Installation and ConfigurationJUMPER SELECTION Installation and ConfigurationLED INDICATORS Initial InspectionBasic Setup Procedure Basic Setup Procedure4800 CommunicationsTable 2.2 Switch S1 Settings for Baud Rate 9600To choose XON/XOFF protocol, select the XON switch position shown in Connections Use a 9-pin DB9 to 9-pin parallel cable to connect the interface card to the serial port on the host computer. If you need to use a 25-pin connector DB25 on the host interface, ensure the correct connections are made by referring Table 2.7. If the proper cables are not available and you need to change the transmit/receive pin configuration, see “Transmit / Receive Pin Selection” Remote/Local Operation RemoteStartup device-dependent commands available with this interface REM ON Exampleremote mode Use any command to do thisFigure 2.4 RS-232 Connector J4 Pinouts default configuration RS-232 ConnectionPower Supply Settings Power Supply SettingsTable 2.12 OVP Control Mode Selection User Options and SettingsTTL You can use the Shutdown function to disable or enable the supplys output. Shutdown Disabling the supply using TTL shutdown allows you to make adjustments to the Figure 2.5 User Signals J21 Connector User SignalsTo install the ferrite block Operating Manual for RS-232 for XPD Series Power Supply Installation and ConfigurationUser Signals To J21 Connector To User Custom InterfaceIntroduction Command SyntaxSection 3. Operation RS-232 OperationMASK FOLD = MASK MASK FOLD = mask foldMASK FOLD ≠ MK FOLD MASK FOLD ≠ MASK FDISET 2.0A VSET ISET 2.0A VSET Table 3.1 Command ParametersExample Table 3.2 Floating Point NumbersCOMMAND parameter COMMAND parameter, parameterLF Description Command SummaryCommand OperationDescription Query CommandsOperation Description Calibration CommandsOperation DescriptionOperation Command Referenceread. See “Accumulated Status, Status, and Fault Registers” on page CommandDescription CommandOperation Description CommandLockout. See also “Remote/Local Operation” on page OperationOperation Status, and Fault Registers” on page 47. Mnemonics are separated fromCommand pageDescription Command“Remote/Local Operation” on page OperationCommand Status, and Fault Registers” on page“Accumulated Status, Status, and Fault Registers” on page status and fault registers See “Accumulated Status, Status, and Faultprogrammed voltage range. Refer to the output value as VRLO and record it CommandOperation DescriptionAccumulated Status, Status, and Fault Registers Accumulated Status, Status, and Fault RegistersMnemonic Bit WeightOperation ConditionOperation Error CodesERROR # ERROR IDENTIFICATIONLEDs TroubleshootingIntroduction Section 4. CalibrationVoltage Voltage Mode CalibrationSetup Voltage Program Calibration ProcedureVoltage Readback Calibration Procedure Current Program Calibration Procedure Current Mode CalibrationCurrent Calibration Setup Current Readback Calibration Procedure Over Voltage Protection OVP Calibration Page 800 667 8422 Toll Free North America prg.info@xantrex.com Xantrex Technology Inc8999 Nelson Way Burnaby, British Columbia Canada V5A 4B5 604 422 8595 Tel 604 421 3056 Fax