Acromag PMC341 Series User Manual Download Page 23

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- 22
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DATA

        I/O
INTERFACE

SERIAL TO PARALLEL

AMP

INST.

S/H & ADC
CH0 & CH8

INTERRUPT

AMP

INST.

REGISTERS

REGISTER

HIGH BANK TIMER

LOW BANK TIMER

LOGIC 

COMMON

FPGA

PCI LOGIC

J1/J2

PMC341 BLOCK DIAGRAM

8501-878A

INPUT
 MUX

DATA

P1

  PRECISION
CALIBRATION
  VOLTAGES

CONTROL
   LOGIC

CONVERTER

PCI BUS

 S/H & ADC
CH7 & CH15

THRESHOLD

   MEMORY
  BUFFER 2
512 SAMPLES

CHANNEL ENABLE

CONTROL

REGISTER

INTERRUPT

ANALOG

INTERFACE

    ANALOG
      INPUT
  CHANNELS

EXTERNAL TRIGGER INPUT OR OUTPUT

    MEMORY
   BUFFER 1
512 SAMPLES

Summary of Contents for PMC341 Series

Page 1: ...cess underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Dem...

Page 2: ...put Module USER S MANUAL ACROMAG INCORPORATED 30765 South Wixom Road P O BOX 437 Wixom MI 48393 7037 U S A Tel 248 295 0310 Fax 248 624 9234 Copyright 2004 Acromag Inc Printed in the USA Data and spec...

Page 3: ...GIC 16 MULTIPLEXER CONTROL CIRCUITRY 16 DATA TRANSFER FROM ADC TO FPGA 16 CONVERSION COUNTER 16 MEMORY BUFFER SWITCH CONTROL 16 EXTERNAL TRIGGER 16 INTERRUPT CONTROL LOGIC 16 REFERENCE VOLTAGE MEMORY...

Page 4: ...cycle conversion mode is initiated by a software or external trigger External Trigger Input or Output The external trigger is assigned to a field I O line This external trigger may be configured as an...

Page 5: ...operating temperature The dense packing of the PMC module to the carrier CPU board restricts air flow within the card cage and is cause for concern Adequate air circulation must be provided to preven...

Page 6: ...e PMC341 is non isolated since there is electrical continuity between the logic and field I O grounds As such the field I O connections are not isolated from the carrier CPU board and backplane Care s...

Page 7: ...IDSEL 25 AD 23 26 3 3V 27 AD 20 28 AD 18 29 GND 30 AD 16 31 C BE 2 32 GND 33 PCI RSVD 34 TRDY 35 3 3V 36 GND 37 STOP 38 PERR 39 GND 40 3 3V 41 SERR 42 C BE 1 43 GND 44 AD 14 45 AD 13 46 GND 47 AD 10 4...

Page 8: ...00 Subsystem Vendor ID 0000 12 Not Used 13 14 Reserved 15 Max_Lat Min_Gnt Inter Pin Inter Line MEMORY MAP This board is allocated a 4K byte block of memory that is addressable in the PCI bus memory sp...

Page 9: ...f channels 8 15 10 Enable Continuous Conversion Mode Conversions are initiated by a software start convert or external trigger and continued by BIT FUNCTION internal hardware triggers generated at the...

Page 10: ...Low Bank Timer value divides an 8 MHz clock signal The output of this Low Bank Timer is used to precisely generate periodic trigger pulses to control the frequency at which all enabled channels are c...

Page 11: ...of the Interrupt register to a logic one The interrupt request can also be disabled by setting bit 0 to a logic zero however the interrupt request will remain active on the PMC341 until released via...

Page 12: ...e or hardware reset has no affect on this register Reference Voltage Read Data Status Register Read 20H The Reference Voltage Read Data Status register is a read only register and is used to access th...

Page 13: ...onversions of all enabled channels The interrupt capability of the module can be employed as a means to indicate to the system that up to 512 samples depending on the threshold selected via the Thresh...

Page 14: ...and offset values of channels 0 through 7 The five volt reference Auto Span Calibration Voltage and the ground reference Auto Zero voltage will need to be selected and converted through each of the e...

Page 15: ...he reference voltage must be read until the null terminating character 00 is read To read the most significant digit the Reference Voltage Access register must be written with data value 8000H at Base...

Page 16: ...tiplexer as required per the programming of the control register Up to 16 differential inputs can be monitored The multiplexer stage directs one of two groups of eight channels for simultaneous conver...

Page 17: ...tized data from the A D converters to the memory buffer Only the channels enabled for conversion are stored in memory and tagged for channel identification CONVERSION COUNTER The ADC conversion rate i...

Page 18: ...PMC modules 5 0 SERVICE AND REPAIR SERVICE AND REPAIR ASSISTANCE The PMC341 is shipped pre calibrated by Acromag and may be returned at the discretion of the customer to measure the accuracy of the c...

Page 19: ...o the enclosure port 1KV direct to I O and European Norm EN50082 1 Surge Immunity Not required for signal I O per European Norm EN50082 1 Electric Fast Transient Immunity3 EFT Complies with IEC1000 4...

Page 20: ...2 to keep non ideal grounds from degrading overall system accuracy Input Noise PMC3417 1 LSB rms Typical Note 7 Reference Test Conditions Temperature 25 C 125K conversions second using test PC with a...

Page 21: ...Attributes See Drawing 4501 758 Electrical Specifications 30 VAC per UL and CSA SCSI 2 connector spec s 1 Amp maximum at 50 energized SCSI 2 connector spec s Operating Temperature 20 C to 80 C Storag...

Page 22: ...SERIES PMC341 PCI MEZZANINE CARD SIMULTANEOUS ANALOG INPUT MODULE ___________________________________________________________________________________________ 21...

Page 23: ...CH0 CH8 INTERRUPT AMP INST REGISTERS REGISTER HIGH BANKTIMER LOW BANKTIMER LOGIC COMMON FPGA PCILOGIC J1 J2 PMC341 BLOCK DIAGRAM 8501 878A INPUT MUX DATA P1 PRECISION CALIBRATION VOLTAGES CONTROL LOGI...

Page 24: ...N D E D FOR LOWE S T N OI S E S H I E LD I S C ON N E C TE D TO GR OU N D R E FE R E N C E A T ON E E N D ON LY TO P R OV I D E S H I E LD I N G WI TH OU T GR OU N D LOOP S C H 0 P MC 341 C A R R I E...

Page 25: ...SERIES PMC341 PCI MEZZANINE CARD SIMULTANEOUS ANALOG INPUT MODULE ___________________________________________________________________________________________ 24...

Page 26: ...SERIES PMC341 PCI MEZZANINE CARD SIMULTANEOUS ANALOG INPUT MODULE ___________________________________________________________________________________________ 25...

Page 27: ...uipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentat...

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