Ac/dc input interface board six channel active low analog or digital inputs six open-drain outputs (active-low) (19 pages)
Summary of Contents for Acromag AVME9440 Series
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ISOLATED DIGITAL I/O BOARDS ____________________________________________________________________________ The information in this manual is subject to change without notice. Acromag, Inc., makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Further, Acromag, Inc., assumes no responsibility for any errors that may appear in this manual and makes no commitment to update, nor keep current, the information contained in this manual.
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ TABLE OF CONTENTS CHAPTER Page 1.0 GENERAL INFORMATION...................... 1.1 INTRODUCTION........................1.2 DIGITAL INPUT FEATURES ( 9440-I & 9447-I )..............1.3 DIGITAL OUTPUT FEATURES ( 9440-I & 9443-I )..............1.4 VMEbus INTERFACE FEATURES................... 1.5 FIELD COMPATIBILITY......................1.5.1 Digital Inputs........................
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AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ____________________________________________________________________________ TABLE OF CONTENTS CHAPTER Page 3.3 GENERATING INTERRUPTS....................3.3.1 Interrupt Example For Change Of State (COS)..............3.3.2 Interrupt Example For Input Level (Polarity) Match............3.3.3 Interrupt Example For Input Pattern Match............... 3.3.4 Sequence of Events For an Interrupt................4.0 THEORY OF OPERATION.......................
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ 1.0 GENERAL INFORMATION 1.1 INTRODUCTION The AVME944x Series of VME cards offer a variety of features which make them an ideal choice for many industrial and scientific applications. MODEL 16 Channel 16 Channel Channel On Digital In Digital Out LEDs...
1.5 FIELD COMPATIBILITY See APPENDIX A for more information on compatible products. 1.5.1 Digital Inputs Directly compatible with Acromag input termination panel. Cable: Model 9944-X: Flat 64 pin cable (female connectors at both ends) for connecting the AVME944X to the 6985-16DI termination panel.
ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ For repairs to a product damaged in shipment, refer to the Acromag Service Policy to obtain return instructions. It is suggested that salvageable shipping cartons and packing material be saved for future use in the event the product must be shipped.
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ____________________________________________________________________________ 2.4 VMEbus CONFIGURATION 2.4.1 Address Decode Jumper Configuration The board interfaces with the VMEbus as a 1K block of address locations in the VMEbus Short I/O Address Space or Standard Address Space. J2 and J1 decode the fourteen most significant address lines A10 through A23 to provide segments of 1K address space.
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ 2.4.2 Address Modifier Jumper Configuration The VMEbus Address Modifier jumpers (J3, J5, and J6) permit the board to respond to the various Address Modifier Codes. Pins of J3,J5,J6 1&2 2&3 1&2 1&2 Address Modifier Code/Function 2DH Only Short Supervisory Access 2DH &...
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ____________________________________________________________________________ 2.5.1 Digital Input Threshold Selection Two input threshold voltages are selectable on a per channel basis by J9 to J24 to cover the input ranges from 4 to 55V DC, as shown in the following table: Channel Range J9-J24 J9-J24...
Digital inputs are connected to the 944x via connector P4 (lower connector as viewed from the front). Table 2.1 defines the assignment. These connections are easily accommodated through the use of Acromag termination panels and flat cable assemblies or through the use of a user defined termination panel.
Digital outputs are connected to the 944x via connector P3 (upper connector as viewed from the front). Table 2.2 defines the assignment. These connections are easily accommodated through the use of Acromag termination panels and flat cable assemblies or through the use of a user defined termination panel.
The board is addressable on 1K byte boundaries in the Short I/O Address Space or Standard Address Space. All Acromag VMEbus non-intelligent slaves have a standard interface configuration which consists of a 32 byte board ID PROM and a Board Status register. The rest of the 1K byte address space contains registers or memory specific to the function of the board.
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AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ Figure 3.1: Board Memory Map Address Address Base + Base + (HEX) Even (HEX) ↓ ↓ Undefined R - Board ID PROM ↓ ↓ Undefined Undefined Undefined R/W - Board Status ↓ ↓ Undefined Undefined Undefined R/W - Int.
From Board ASCII Numeric Base Address Character All boards have "VMEID" Manufacturer's I.D., "ACR" for Acromag Board Model Number (6 characters and 1 trailing "blank") (Each model has a unique number) Number of KILOBYTES of address space used. Undefined Reserved "...
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ 3.1.2 Board Status Register - (read/write) - 81H The Board Status Register reflects and controls functions globally on the board. ------------------------------------------------------------------------------------------------------------- <------ Reserved ------> Software Global Global Green Reset Int. Int. Enable Pending Where: Bits 7,6,5: Reserved for future use - equal "0"...
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ____________________________________________________________________________ If the status register bit 1 reads high and Bit 0 reads low, the LEDs will both be lit and SYSFAIL* low. This indicates the board is undergoing a diagnostic checkout. If the status register bits 1 and 0 read high, the green LED will be lit with the red LED off and SYSFAIL* high. This indicates the board is fully functional.
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ highest numbered channel will be delivered first. After the highest channel's interrupt is serviced and cleared, an additional interrupt will be generated for the next highest priority interrupt (pending) channel. NOTE: Input channel bandwidth should be limited to reduce the possibility of missing channel interrupts. For a specific input channel this could happen if multiple changes occur before the channel's interrupt is serviced.
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ____________________________________________________________________________ Note that interrupts will not occur unless they are enabled. --------------------------------------------------------------------------------------------------- All bits are set to "0" following a reset which means that the inputs will cause interrupts for the input channel levels specified by the digital input channel interrupt polarity register. 3.1.8 Digital Input Channel Interrupt Pattern Enable Reg.
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ Each digital output can be written to and then read back immediately for verification purposes, but for complete confidence in the output setting, the output should be fed back to an input point and the input point monitored. --------------------------------------------------------------------------------------------------------------------------------- CH15 CH14 CH13 CH12 CH11 CH10 CH9 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 CH0 All bits are set to "0"...
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ____________________________________________________________________________ The user has the option of having a single interrupt handler for the entire board or having each channel serviced by a separate software handler. This is determined by what is written into the interrupt vector registers. There is a unique register for each digital input channel (0-7).
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ 5. Select the desired polarity (level) for input channel interrupts by writing "0" or "1" to each channel's associated bit in the Digital Input Channel Interrupt Polarity Register. 6. Disable input pattern detection interrupts by writing "0" to each channel's associated bit in the Digital Input Channel Interrupt Pattern Enable Register.
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ____________________________________________________________________________ A. If the input stimulus remains, a new interrupt request will immediately follow. If the stimulus cannot be removed, then the channel should be disabled or reconfigured (e.g. for the opposite polarity). B. If other channels have interrupts pending, then the interrupt request (IRQx*) will remain asserted. This will start a new interrupt cycle.
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ When an input channel interrupt condition is satisfied, the interrupter logic will assert the pre-programmed interrupt request level (IRQ7* - IRQ1*) and then monitor the Interrupt Acknowledge Input (IACKIN*) signal. When IACKIN* is asserted the logic compares the VMEbus address lines (A1 - A3) to the pre-programmed board interrupt level.
SYSFAIL* signal. When this solution is not practical, it is possible to disconnect the SYSFAIL* from the circuitry on the Acromag board by cutting a PC board foil near the P1 connector on the solder side. Caution should be exercised so as not to cut any other foils nor damage the board in any other way.
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AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ TABLE 5.1A: PARTS LIST FOR MODEL AVME944x-I) (MAIN BOARD - PARTS COMMON TO ALL MODELS) COMPONENT ACROMAG PART NUMBER DESCRIPTION REFERENCE NUMBER 1033-578 IC XC3030-70PC84C 5024-535 Programmed part 1033-670 IC 74LS174N U54,55 1033-627 IC 74LS645-1ND...
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AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ____________________________________________________________________________ TABLE 5.1C: PARTS LIST FOR MODEL AVME9440-I) (MAIN BOARD - PARTS UNIQUE TO THIS MODEL) COMPONENT ACROMAG PART NUMBER DESCRIPTION REFERENCE NUMBER U1,2 1033-777 IC SN74ALS996NT-3 U3-18 1033-614 IC HSSR-8060 U19-34 1033-616 IC H11L1...
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AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ TABLE 5.2A: PARTS LIST FOR MODEL AVME9440-I-L) (LED EXPANSION BOARD - PARTS UNIQUE TO THIS MODEL) COMPONENT ACROMAG PART NUMBER DESCRIPTION REFERENCE NUMBER U1-2 1033-279 IC SN74LS645ND R1,2 1100-636 RES NET 2% 9-COM 560 OHM...
AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ____________________________________________________________________________ 6.0 SPECIFICATIONS Operating Temperature ............... 0 to +70 deg. C Storage Temperature..............-25 to +85 deg. C Relative Humidity…………………………………………………….. 5-95% non-condensing. Physical Characteristics:............... (Double Eurocard) Length..................9.187 in. (233.3 mm) Width..................6.299 in. (160.0 mm) Board Thickness..............
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AVME9440/9443/9447 ISOLATED DIGITAL I/O BOARDS ___________________________________________________________________________ Input Current................18.4mA DC typ. @ 25V (4-25V DC range) 4.7mA DC typ. @ 55V (20-55V DC range) Input Optical Gate Response Time.........1uS. typ. (7uS. maximum) Input Debounce Time (See Note 1)........4 Selectable Ranges (via jumper): 7-8uS.
Application..........Use to connect 6985-16Dx termination panel to the AVME944x board (both have 64 pin connectors). Cable............64 wire flat ribbon cable, 28 gauge. Acromag Part 2002-210 (3M Type C3365/64 or equivalent). Length............Last field in part number designates length in feet, specified by user (12 feet maximum).
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Field/Power Wiring........Terminal blocks with screw clamps. Wire range 14 to 26 AWG. Connections to AVME944x....P1; Panduit No. 100-532-033; Type B Male Connector, rows A & B equipped, even pins only (32 pins total). Use Acromag 9944-x cable (keyed) to connect panel to VME board. Keep cable short to reduce power loss and noise.
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