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VZU-6991K6 Scheda tecnica(PDF) 2 Page - Communications & Power Industries, Inc. |
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VZU-6991K6 Scheda tecnica(HTML) 2 Page - Communications & Power Industries, Inc. |
2 / 4 page Specifications Refer to CPI 6900K4 Series data sheets for detailed specifications of the basic unit. This data sheet covers only those specifications which apply to the interface itself. Listener Functions • High Voltage ON/OFF • Fault Reset • Heater ON/OFF Talker Functions • Heater Power ON • HV ON • Summary Fault • Interlock Fault • Heater Time Delay • Standby • Helix Fault • Thermal Fault Data Interface IEEE Std. 488-1978. Driver and receiver circuits are fully Bus compatible. Receivers contain Bus terminating resistors and have 500 mV hysteresis. Drivers are open collector devices, capable of driving up to 14 other Bus compatible devices. Power up/down protection is included to prevent transmitting invalid data to the Bus or holding the Bus when power is off. Format Sixteen lines, eight for data and eight for control and status messages. Data transfer is byte serial using a three-wire handshake per IEEE-488 Standard. Address Capability Unit recognizes 31 primary addresses (address 0 through 30) or 31 secondary addresses with a fixed primary address of 17 (address 1700 through 1730). Interface Handshake Function Code Comments Repertoire: Source Handshake SH1 Implemented Acceptor Handshake AH1 Implemented Talker T5 Implemented Extended Talker TE5 Implemented Listener L3 Implemented Extended Listener LE3 Implemented Service Request SR1 Implemented Parallel Poll PP1 Implemented Remote/Local RL0 Not Implemented Device Clear DC1 Implemented Device Trigger DT1 Implemented Controller C0 Not Implemented Bus Driver E1 Open Collector Language CPI Simplified A simplified version of CIIL. All commands enclosed in brackets are deleted. In addition, the SRQ Language (CSL) function is enabled allowing serial and parallel polling as well as the “D” command status request. Control Interface Compatible per proposed MATE System Control Interface Standard No. 2806763 Rev. B. Several Intermediate Language non-CIIL approved noun modifiers have been defined as required by a TWTA. CIIL required commands (CIIL) are indicated herein enclosed by brackets [ ]. Listener Operation Function Op-Code Noun Modifier Codes and Statements FNC = Function SGC = Signal Conditioner GAIN = Gain CHØ = Channel Ø VLST = Standby SET = Set VLON = Voltage ON RST = Reset STA = Status Set-Up Statements Set-Up to Standby FNC [SGC : CHØ SET GAIN 50 SET] VLST CR [LF] If this command is received during the ON mode, high voltage will be switched OFF and the amplifier placed in Standby; i.e., heater ON, high voltage OFF. If this command is received when the heater is OFF, the heater will be switched ON and the amplifier will switch to Standby at the end of the Heater Time Delay period. |
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