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VM4016
ANALOG COMPARATOR
USER’S
MANUAL
82-0022-000
Rev. December 1, 2003
VXI Technology, Inc.
2031 Main Street
Irvine, CA 92614-6509
(949) 955-1894
bus
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www.vxitech.com TABLE OF CONTENTS INTRODUCTION Certification ..........................................................................................................................................................5 Warranty ...............................................................................................................................................................5 Limitation of Warranty ...................................................................................
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VXI Technology, Inc. Common SCPI Commands ....................................................................................................................................52 *CLS ...................................................................................................................................................................52 *ESE ................................................................................................................................................
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www.vxitech.com CERTIFICATION VXI Technology, Inc. (VTI) certifies that this product met its published specifications at the time of shipment from the factory. VTI further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology (formerly National Bureau of Standards), to the extent allowed by that organization’s calibration facility, and to the calibration facilities of other International Standards Organization members
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VXI Technology, Inc. DECLARATION OF CONFORMITY Declaration of Conformity According to ISO/IEC Guide 22 and EN 45014 MANUFACTURER’S NAME VXI Technology, Inc. MANUFACTURER’S ADDRESS 2031 Main Street Irvine, California 92614-6509 PRODUCT NAME Analog Comparator MODEL NUMBER(S) VM4016 PRODUCT OPTIONS All PRODUCT CONFIGURATIONS All VXI Technology, Inc. declares that the aforementioned product conforms to the requirements of the Low Voltage Directive 73/23/EEC and the EMC Di
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www.vxitech.com GENERAL SAFETY INSTRUCTIONS Review the following safety precautions to avoid bodily injury and/or damage to the product. These precautions must be observed during all phases of operation or service of this product. Failure to comply with these precautions, or with specific warnings elsewhere in this manual, violates safety standards of design, manufacture, and intended use of the product. Service should only be performed by qualified personnel. TERMS AND SYMBOLS
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VXI Technology, Inc. WARNINGS (CONT.) Avoid Electric Shock To avoid electric shock or fire hazard, do not operate this product with the covers removed. Do not connect or disconnect any cable, probes, test leads, etc. while they are connected to a voltage source. Remove all power and unplug unit before performing any service. Service should only be performed by qualified personnel. Ground the Product This product is grounded through the grounding conductor of the power cord. T
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www.vxitech.com SUPPORT RESOURCES Support resources for this product are available on the Internet and at VXI Technology customer support centers. VXI Technology World Headquarters VXI Technology, Inc. 2031 Main Street Irvine, CA 92614-6509 Phone: (949) 955-1894 Fax: (949) 955-3041 VXI Technology Cleveland Instrument Division VXI Technology, Inc. 7525 Granger Road, Unit 7 Valley View, OH 44125 Phone: (216) 447-8950 Fax: (216) 447-8951 VXI Technology Lake St
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VXI Technology, Inc. 10 VM4016 Preface
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www.vxitech.com SECTION 1 INTRODUCTION INTRODUCTION The VM4016 is a high-performance Analog Comparator module which has been designed to monitor analog signals and cause VXIbus interrupts to occur when programmed input limits have been exceeded. The instrument uses the message-based word serial interface for programming and data movement, as well as supporting direct register access for very high-speed data retrieval. The VM4016 command set conforms with the SCPI standard for consis
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VXI Technology, Inc. Regardless of whether the VM4016 is configured with other VM4016 modules or with other VMIPmodules, each group of 16 channels is treated as an independent instrument in the VXIbus chassis and, as such, each group has its own FAIL and ACCESS light. The FAIL LED is a Power/Fault indicator. When normal power up conditions exist, the FAIL LED will illuminate green. When a power on fault condition occurs, the FAIL FAIL ACC/ LED will illuminate red. The ACC/ERR LED
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www.vxitech.com VXI MODULE PANEL TO VXIBUS CHANNEL 1 OF COMPARE REGISTERS CH1+ DIFFERENTIAL AMPLIFIER DEBOUNCE CH1- X1 OR X0.1 COMPARATOR 10 uS TO 0.5 S 8 BIT DAC INVERT MASK REGISTER REGISTER INTERRUPT VXIbus AND FIRST INTERRUPT LIMIT LOGIC +5V CHANNEL 16 OF FIRST LIMIT INVERT REGISTER IRQ FIRST LIMIT TO VXIBUS LATCH FIRST LIMIT INTERRUPT REGISTER REGISTER INVERT REGISTER +5V L IRQ FIGURE 1-3: VM4016 BLOCK DIAGRAM VM4016 Preparation for Use 13
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VXI Technology, Inc. VM4016 GENERAL SPECIFICATIONS GENERAL SPECIFICATIONS CHANNELS 16 VM4016-1 VM4016-2 32 VM4016-3 48 INPUT RANGE ±10.0 V, ±100 V INPUT THRESHOLD ±10.0 V 78 mV ±100.0 V 780 mV INPUT TYPE Differential, may be configured for single-ended by grounding the negative input INPUT IMPEDANCE 200 k Ω Differential 100 k Ω Single-ended INPUT POLARITY Rising or Falling Edge DEBOUNCE TIME 9.6 µs to 0.6291456 s, 9.6 µs resolution IRQ OUTPUT Open Col
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www.vxitech.com Section 2 SECTION 2 PREPARATION FOR USE INSTALLATION When the VM4016 is unpacked from its shipping carton, the contents should include the following items: One VM4016 VXIbus module One VM4016 Analog Comparator Module User’s Manual (this manual) All components should be immediately inspected for damage upon receipt of the unit. Once the VM4016 is assessed to be in good condition, it may be installed into an appropriate C-size or D-size VXIbus chassis in any s
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VXI Technology, Inc. SETTING THE CHASSIS BACKPLANE JUMPERS Please refer to the chassis User’s Manual for further details on setting the backplane jumpers. SETTING THE LOGICAL ADDRESS The logical address of the VM4016 is set by a single 8-position DIP switch located near the module’s backplane connectors (this is the only switch on the module). The switch is labeled with positions 1 through 8 and with an ON position. A switch pushed toward the ON legend will signify a logic 1; switch
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www.vxitech.com The connector used in the VM4016 is a commonly available 44-pin high density DSUB receptacle connector. A mating solder cup pin connector from AMP is included, crimp type connectors are available from a variety of sources. TABLE 2-1: ANALOG COMPARATOR PIN OUTS SIGNAL PIN NUMBER SIGNAL PIN NUMBER CHANNEL 1 + 1 GROUND 23 CHANNEL 1 - 2 CHANNEL 11 + 24 GROUND 3 CHANNEL 11 - 25 CHANNEL 4 + 4 CHANNEL 14 + 26 CHANNEL 4 - 5 CHANNEL 14 - 27 CHANNEL 7 + 6 GROUND 28 CHA
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VXI Technology, Inc. The mating connector to J200, J201 or J202 is available from the following company: Assmann Electronic, Inc. P/N AHDS44LL-T Mating Connector The pin locations for J200, J201 and J202 are shown in Figure 2-2. 16 31 1 44 15 30 FIGURE 2-2: J200, J201 AND J202 PIN LOCATIONS 18 VM4016 Preparation for Use
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www.vxitech.com SECTION 3 PROGRAMMING EXAMPLES OF SCPI COMMANDS FETCH:CONDITIONED? The FETCh:CONDition query returns the 16-bit value that represents the current conditioned (masked and inverted) state of the inputs. It is important to note that this information is also available at the VXIbus register level at offset 0x28. FETCh:CONDitioned? No query parameters. EXAMPLES FETCh:CONDitioned? Returns the state of the conditioned 0 (masked and inverted) inputs. VM4016
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VXI Technology, Inc. FETCH:LATCHED? The FETCh:LATChed query returns a 16-bit value that reports the active signals in the First Latched register. The First Latched register records the active signals when the first new input channel crossed its threshold. It is important to note that the above information is also available at the VXIbus register level at offset 0x30. FETch:LATChed? No query parameters EXAMPLES FETCh:LATChed? Returns the active signals in the First 1 Latche
