Acromag AVME9125 Series, User Manual

Page 1: ...ess 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 Demo...

Page 2: ...South Wixom Road P O BOX 437 Wixom MI 48393 7037 U S A Tel 248 624 1541 Fax 248 624 9234 Copyright 1998 Acromag Inc Printed in the USA Data and specifications are subject to change without notice 8500...

Page 3: ...CONTROL LOGIC 15 ANALOG INPUTS 15 Power Supply Filters 15 5 0 SERVICE AND REPAIR 15 SERVICE AND REPAIR ASSISTANCE 15 PRELIMINARY SERVICE PROCEDURE 16 6 0 SPECIFICATIONS 16 PHSICAL 16 VMEbus COMPLIANC...

Page 4: ...or upon completion of conversion of the group of all scanned channels Software Programmable Interrupt Level The VMEbus interrupt level is software programmable Additional registers are associated wit...

Page 5: ...rs for different base address locations is shown in Table 2 1 IN means that the pins are shorted together with a shorting clip OUT indicates that the clip has been removed The jumper locations are sho...

Page 6: ...ME9125 The EXP9125 will pull CHSel0 high when present Lastly the AVME9125 provides 15 volts to the EXP9125 via the P2 connector Pin assignments for the P2 connectors of the AVME9125 are shown in Table...

Page 7: ...Identification Space Not Used Card Identification Space Low Byte 01 3F 40 Status Register 41 42 Control Register 43 44 Timer Prescaler Interrupt Vector Register 45 46 Conversion Timer 47 48 End Channe...

Page 8: ...is set to 0 Reset condition Set to 0 Bit 0 EXP9125 Board Present Status Read This bit will be 1 when the EXP9125 Expander board is present in a slot adjacent to the AVME9125 A set bit indicates that 3...

Page 9: ...gister The resulting frequency can be used to generate periodic triggers for precisely timed intervals between conversions The Timer Prescaler has a minimum allowed value restriction of 5A hex or 90 d...

Page 10: ...tiated with the Software Start Convert command This is done to avoid mistaking data from an old scan cycle with that of a new scan cycle The New Data registers can be read via 16 bit or 8 bit data tra...

Page 11: ...e an offset of 10 Bit D2 can not be set since an offset of 9 would result and 9 is greater then 9 25 Finally bits D1 and D0 are also set The value written to the offset coefficient must be 3DB hex as...

Page 12: ...econds after the programmed interval has lapsed If interrupt upon completion of a group of channels is selected an interrupt will be issued 10 5 seconds after the interval time of the last selected ch...

Page 13: ...tal Signal Processing logic for real time calibration of digitized values The on board hardware implements the required multiplication to adjust the gain and also the summation to correct the offset T...

Page 14: ...Corresponding Registers 13 Since all parameters are known the gain and offset coefficients can be determined A The offset coefficient is the average of the 32 Count0V values measured An example illus...

Page 15: ...cally 800ns for accesses to the AVME9125 board registers The board s FPGA monitors the base address jumper setting which is jumperable on 256 byte boundaries in the VMEbus Short I O A16 Address Space...

Page 16: ...o Table 2 3 Field I O signals are NON ISOLATED This means that the field return and logic common have a direct electrical connection to each other As such care must be taken to avoid ground loops see...

Page 17: ...al 600mA Maximum VMEbus COMPLIANCE Specification This device meets or exceeds all written VME specifications per revision C 1 dated October 1985 IEC 821 1987 and IEEE 1014 1987 Data Transfer Bus A16 D...

Page 18: ...the uniform single sample mode A 3 foot shielded analog input ribbon was used ENVIRONMENTAL Operating Temperature 0 to 70 C Relative Humidity 5 95 non condensing The printed circuit board is coated w...

Page 19: ...VMEbus 6U Analog Input Board ___________________________________________________________________________________________ 18 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE ww...

Page 20: ...VMEbus 6U Analog Input Board ___________________________________________________________________________________________ 19 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE ww...

Page 21: ...SHIELDED CABLE IS RECOMMENDED FOR LOWEST NOISE SHIELD IS CONNECTED TO GROUND REFERENCE AT ONE END ONLY TO PROVIDE SHIELDING WITHOUT GROUND LOOPS NOTES CH16 31 EXT SOURCE 16 31 SEE NOTE 2 SEE NOTE 1 SH...

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