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IOS-320

12-Bit High-Density Analog Input Module

USER’S MANUAL

ACROMAG INCORPORATED Tel: (248) 295-0310
30765 South Wixom Road Fax: (248) 624-9234
P.O. BOX 437
Wixom, MI 48393-7037 U.S.A.
solutions@acromag.com

Copyright 2009, Acromag, Inc., Printed in the USA.
Data and specifications are subject to change without notice.

8500-837-C11C007

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Summary of Contents for IOS-320

Page 1: ...ACROMAG INCORPORATED Tel 248 295 0310 30765 South Wixom Road Fax 248 624 9234 P O BOX 437 Wixom MI 48393 7037 U S A solutions acromag com Copyright 2009 Acromag Inc Printed in the USA Data and specifi...

Page 2: ...f control or monitoring system This is especially important where economic property loss or human life is involved It is important that the user employ satisfactory overall system design It is agreed...

Page 3: ...ING AND INSPECTION Upon receipt of this product inspect the shipping carton for evidence of mishandling during transit If the shipping carton is badly damaged or water stained request that the carrier...

Page 4: ...Selections Pins of J1 and J2 Power Supply Selection J1 J2 1 2 J1 J2 2 3 12 Volt Internal P1 IN OUT 15 Volt External P2 OUT IN Internal and external supplies should not be mixed e g do not use 12 Volt...

Page 5: ...ever caution must be exercised since the single sense lead references all channels to the same common which will induce noise and offset if they are different The IOS 320 is non isolated since there i...

Page 6: ...ted by 32 Hex I O SPACE ADDRESS MAP This board is addressable in the I O Server Module space to control the acquisition of analog inputs from the field The I O space may be as large as 64 16 bit words...

Page 7: ...it 5 Not used if read will return data written to the bit position Bit 4 The SEL HIGH bit acts as the MSB for analog input channel selection As such its action is grouped with that of bits 3 0 see fol...

Page 8: ...r to configure the acquisition mode gain and channel selections for the next acquisition if they are different This may be done while the conversion is in progress because the ADC is in the hold mode...

Page 9: ...ate calibration of the IOS 320 can be accomplished by using calibration voltages present on the board The four voltages and the analog ground reference are used to determine the endpoints of a straigh...

Page 10: ...CALLO 0 0000 volts Auto Zero From Table 3 4 Ideal_Volt_Span 20 0000 volts From Table 3 5 Ideal_Zero 10 0000 volts From Table 3 5 The calibration parameters CountCALHI and CountCALLO remain to be deter...

Page 11: ...rm in equation 1 Since all parameters on the right hand side of equation 1 are known Calculate the calibrated value Corrected_Count This is the desired corrected value for input channel 39 16 Repeat s...

Page 12: ...se in calibration These provide considerable flexibility in obtaining accurate calibration for any desired ADC range and gain combination when compared to fixed hardware potentiometers for offset and...

Page 13: ...per European Norm EN50082 1 Electric Fast Transient Immunity EFT Complies with EN61000 4 4 Level 2 0 5KV at field I O terminals and European Norm EN50082 1 Radiated Emissions Meets or exceeds Europea...

Page 14: ...s a bipolar input range should be selected 3 These ranges can only be achieved with 15 Volt external power supplies The input ranges will be clipped if 12 Volt supplies are used typically to 9 Volt ma...

Page 15: ...LE 12 BIT HIGH DENSITY ANALOG INPUT BOARD __________________________________________________________________________________________ 15 Acromag Inc Tel 248 295 0310 Fax 248 624 9234 Email solutions ac...

Page 16: ...LE 12 BIT HIGH DENSITY ANALOG INPUT BOARD __________________________________________________________________________________________ 16 Acromag Inc Tel 248 295 0310 Fax 248 624 9234 Email solutions ac...

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