VMIVME-4514A 16-Channel Scanning Analog I/O Board with Built-in-Test and P2 I/O • Continually digitizes all input channels and stores the results in a dedicated channel dual-port register (autoscanning mode) • Three A/D operating modes — Autoscanning mode (entered on power up) — Random polling mode — Scanning poll mode • P2 I/O connection • Built-in-Test on-board — Tests 100 percent of active components — Semiconductor output switches — Do not compromise accuracy (0.1 Ω output impedance) • 16 SE/Diff analog input channels — 12-bit A/D converter — Unipolar (0 to +10 V, 0 to +5 V) or bipolar (±2.5 V, ±5 V, ±10 V) — 40 kHz A/D throughput — Optional low pass filter — Overvoltage protected — Fail-safe with power off • 16 S&H analog output channels — 12-bit D/A converter A 16-word dual-port memory provides storage for a — Output short circuit protected — Unipolar (0 to +10 V, 0 to +5 V) or bipolar (±2.5, ±5 V, ±10 V) continuous scan of all channels. The scanning modes are — Program-selectable scan rates provide improved response for complex executed automatically at power up, system reset, or via output functions 10 mA outputs program control. The dual-port registers allow VMEbus • Power up board replacement access at any time to read the latest stored data. APPLICATIONS A functional block diagram is provided in Figure 1 and • Factory automation and instrumentation • Process control the Ordering Options are provided on this page of this • Laboratory instrumentation specification. • Machine monitoring • Data acquisition system FUNCTIONAL CHARACTERISTICS • Simulation and training Operating Modes: INTRODUCTION — This product provides the user Autoscanning Mode: The mode is executed by a with 16 analog outputs and 16 analog input channels. The power up system reset, or program selection. All resolution of inputs and outputs is 12 bits. The analog channels are continuously scanned and the digitized outputs are designed with an S&H output per channel. The data is stored in sixteen 16-bit dual-port registers. No 16 analog inputs are digitized by a 12-bit Analog-to-Digital other programming is required other than a read from Converter (ADC) controlled by a scanner which scans and the dual-port register. stores data in a dual-port memory. The VMIVME-4514A Analog I/O (AIO) Board Ordering Options provides 16 high-quality analog output channels which can June 7, 1999 800-104514-000 C ABC – D E F be programmed with on-board jumpers to operate in a VMIVME-4514A –00 – variety of voltage ranges. Each output can source or sink A = Input Filter Options 0 =No Filter 10 mA at ±10 V. For off-line testing, the analog outputs can 1 = Not Used be disconnected from the I/O connector. 2 = Not Used 3 = 36 Hz (3d B Cutoff Frequency) BC = 00 (Options reserved for future use) The product also accepts 16 differential or pseudo-differential (single-ended) analog inputs. The I/O Connector Data on-board 12-bit ADC may be jumpered for several analog Connecting Component Panduit Mating Cable Connector No. 120-964-435 input ranges. The board supports the following ADC Strain Relief No. 100-000-072 operating modes that are described below: Board I/O Connector No. 120-964-033A Notes Autoscanning Mode Contact the factory for other I/O options. Random Polling Mode Panduit is also known as ITW/Pancon. Scanning Poll Mode For Ordering Information, Call: 1-800-322-3616 or 1-256-880-0444 • FAX (256) 882-0859 E-mail: info@vmic.com Web Address: www.vmic.com Copyright © February 1995 by VMIC Specifications subject to change without notice. VMIC • 12090 South Memorial Parkway • Huntsville, Alabama 35803-3308 1 VMIVME-4514A Random Polling Mode: This mode requires the Front Panel Fail LED: If an error condition occurs controlling program to generate a single conversion. during diagnostics, a software-controlled LED may be End-of-conversion is determined by polling an illuminated to visually indicate a failure. The LED is end-of-conversion status bit. illuminated by system reset at power up and is extinguished upon successful diagnostic execution. Scanning Poll Mode: This is a scanning mode which executes a single scan of all channels. An end-of-scan (Typical at +25 °C and rated power supplies unless control bit is polled to determine when the scan is otherwise stated.) completed. ANALOG INPUTS Board Address: The physical address for the board No. of Input Channels: Thirty-two, including 16 may be selected by on-board jumpers. VMEbus which are used for loopback testing of 16 analog output address lines A06 through A15 are decoded for board channels. Sixteen undedicated differential (or selection. pseudo-differential) analog inputs are available. VMEbus Access: Address modifier bits are jumper-selected and decoded to support both Input Type: Sixteen differential or 16 single-ended nonprivileged short I/O, supervisory short I/O, or both. The board is factory configured for supervisory short A/D Conversion Time: 15 µs I/O. Analog Input Acquisition Time: 10 µs Output Data Transfer: Data for each analog output channel is written directly into an on-board RAM A/D Throughput: 40 kHz (maximum) location dedicated to a specific channel. The data is then periodically retrieved from the RAM and Monotonicity: Monotonic over full temperature range converted to an analog voltage which is transferred to one of 16 output sample-and-hold buffers. Common-Mode Range: ±11 V (maximum) Analog Input Format: Analog inputs are first digitized, then the 12-bit digital values (D11 to D00) Common-Mode Rejection: 82 dB are read at a single memory word location from a channel dedicated dual-port register. The upper four Channel Conversion Rate: 40 kHz ÷ number of bits (D15, D14, D13, and D12) are read as the sign scanned channels extension of the 12-bit digital value in two’s complement mode; otherwise, they are read as logical Accuracy: 0.04 percent of range ±2 mV, may be zeros. calibrated to 0.02 percent ±0.5 mV Analog I/O Test Mode: Built-in-Test logic provides Input Bias Current: 2 nA (maximum) the user with the capability to test all of the active components on the board including the output Optional Single Pole Analog Input Filter: switches. The test logic supports real-time and off-line -3 dB at 36 Hz testing. This test scheme utilizes the on-board ADC multiplexers as shown in Figure 1. Full-Scale Input Ranges: ±2.5 V, ±5 V, ±10 V, 0 to Memory Test: This product is designed with +5 V, or 0 to +10 V dual-port on-board memory that may be tested by executing a memory diagnostic for additional Analog Input Code: 12 bits, right-justified in a 16-bit operational verification. word System Reset: Application of the system reset Input Overvoltage Protection: ±40 V, maximum signal through the VMEbus initializes the board into a state with all analog outputs disconnected from the Data Transfer Type: D16 output connector (P2). 2 For Ordering Information, Call: 1-800-322-3616 or 1-256-880-0444 • FAX (256) 882-0859 VMIVME-4514A BUS INTERFACE ANALOG OUTPUTS Compatibility: This board complies with the Number of Output Channels: Sixteen VMEbus specification Rev. C. 1 with the following mnemonics: Full-Scale Analog Output (Jumper-Selectable): Unipolar: 0 to +10 V, 0 to 5 V A16:29, 2D: D16, D08 (EO) (SLAVE): 6U form factor Bipolar: ±2.5 V, ±5.0 V, ±10.0 V PHYSICAL/ENVIRONMENTAL Analog Output Code: The 12-bit ADC accepts digital codes in straight binary and offset binary. Dimensions: Standard VME double width board 160 x 233.5 mm Output Load Current: 10 mA, maximum at full accuracy Temperature: 0 to 55 °C, operating -40 to +85 °C, storage Resolution: 12 bits, S&H per channel Relative Humidity: 20 to 80 percent, noncondensing Output Impedance: 0.1 Ω Cooling: Convection Total Error: 0.05 percent of full-scale range Power Requirements: +5 VDC (±5 percent) at 5.6 Maximum Settling Time to 1 LSB: 1.7 ms A maximum, 3.0 A typical Refresh Update Rate*: 550 Hz (default); 1,600 Hz Output and Input Connector: (FAST REFRESH). The FAST REFRESH rate Standard P2 user I/O provides a filtered output for complex functions; (Extended ground pins on P1 and P2) whereas, the 550 Hz rate provides settling to 0.01 percent for stepped outputs at each update. The MTBF: 29,800 hours (217F) 1,600 Hz rate provides settling to 0.2 dB (2.3 percent). Both rates provide settling to 0.01 percent in 1.7 ms. *The output refresh temporarily halts when the input analog-to-digital conversion is taking place. Therefore, the output refresh rate decreases as the rate of analog-to-digital conversions Output Short Circuit Protection: Indefinite short increases. The worst-case is Autoscanning Mode in which the to common; momentary short to ±25 V output refresh rate is 300 Hz (default) or 900 Hz (fast refresh). Monotonicity: Monotonic over the full temperature TRADEMARKS range The VMIC logo is a registered trademark of VMIC. Other registered trademarks are the property of their respective owners. VMIC • 12090 South Memorial Parkway • Huntsville, Alabama 35803-3308 3 VMIVME-4514A I/O CONN. P2 ANALOG 2 LOW PASS 16 Pairs ADC Data TRACK-AND-HOLD MUX 12-bit FILTERS AMPLIFIER (2/32) ADC 16 PAIRS (S. E.) (Diff) CH00,08 2 (2 Pairs) 12 VMEbus SELF-TEST Hold ADC CONN. Conv Conv MULTIPLEXERS 16 DUAL-PORT P1 Cmd Compl REGISTERS AND Test MUX CONTROL Address Input MUX 2 4 Address ADC Control ADC CONTROL AND SEQUENCE I/O CONN. On-line/Off-line P2 VMEbus INTERFACE ANALOG Analog OUTPUT 12-bit DAC OUTPUTS OUTPUT SWITCHES Outputs AND RAM AND S AND H ANALOG AND REFRESH BUFFER 16 16 PROTECTION SEQUENCER LOGIC 16 Analog Outputs Monitor Bus* TEST SWITCH 16 DC-TO-DC +5 VDC POWER ± 15 VDC 16 CONVERTER *Monitors board outputs in "on-line" mode; buffer outputs in "off-line" mode. Figure 1. VMIVME-4514A Functional Block Diagram APPLICATION AND CONFIGURATION GUIDES —The following application and configuration guides are available from VMIC to assist the user in the selection, specification, and implementation of systems based on VMIC’s products. Title Document No. Analog I/O Products (with Built-in-Test) Configuration Guide 825-000000-005 Connector and I/O Cable Application Guide 825-000000-006 4 For Ordering Information, Call: 1-800-322-3616 or 1-256-880-0444 • FAX (256) 882-0859