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Page 18

SERIAL RS232 COMMUNICATIONS (CONT)

Examples of Transmitted Data

Byte 1 2 3 4 5 6 7 8

Value in Hex 00 01 FF FF FB EB 03 0A
Value in Decimal 0 1 255 255 251 235 3 10
No SP Exceeded

Instantaneous Display

EOT

Displayed Number = -10.45

Decimal = xxx.xx

Byte 1 2 3 4 5 6 7 8

Value in Hex 02 42 FF FE 76 CE 03 0A
Value in Decimal 2 66 255 254 123 206 3 10
SP 2 Exceeded

Valley Display

EOT

Displayed Number = -993.78

Decimal = xxx.xx

Commands

The XON and XOFF commands only affect the transmission of data from the selected

displayed function. The unit responds to all other commands independent of the XON/

XOFF. All commands are ASCII strings and must terminate with a CR (hex OD) and

only a CR. The RS232 port is active only when in the data display mode and will not

respond to commands if the unit is in the MODE sequence

(S)elect Commands

To select or change the function being displayed and being transmitted by the RS232 port,

send the Model 9830 an ASCII string (S$) consisting of two characters, SX, where X is

a hex number.

Function

Instantaneous

Peak minus Valley

Peak

Valley

Reset

Examples written in Basic. These examples assumed that the RS232 port was opened

with buffer #2. The following code changes the displayed and transmitted function.
Example 1

Print #2, "S0"

Changes the function to Instantaneous

Example 2

X$="SA"

Print #2, X$

Changes the function to Peak

Содержание 9834

Страница 1: ...ndicator with Enhanced Performance Features MODE TARE CAL CAL TARE SP1 SP2 SP1 SP2 Model 9834 DISP RESET RCAL PK VAL 7401 E Butherus Dr Scottsdale AZ 85260 TEL 480 948 5555 FAX 480 948 1924 www interfaceforce com ADVANCED FORCE MEASUREMENT ...

Страница 2: ... for special or consequential damages of any kind and from any cause whatsoever arising out of or in any way connected with the manufacture sale handling repair maintenance or replacement arising out of or in anyway connected with the use of said products 5 Representations and warranties made by any person including dealers and representatives of Interface which are inconsistent or in conflict wit...

Страница 3: ...IONS 10 CALIBRATION INSTRUCTIONS 14 SERIAL RS232 COMMUNICATIONS 17 FIGURES Figure 1 Model 9834 Front Panel View 3 Figure 2 Model 9834 Rear Panel View 3 Figure 3 Transducer Wiring 4 Figure 4 I O Input Output Wiring 4 Figure 5 Location of Switches Jumpers Potentiometers 5 Figure 6 Location of Jumpers for AC Line Voltage Selection 5 ...

Страница 4: ...CATIONS Excitation Voltage 12VDC 5 Excitation Current 90 mA Input Amp Gain 1 or 2 Input Impedance 100K ohm min Input Bias Current 10nA max Zero Tempco 1uV degC typ Gain Tempco 20ppm degC typ CMRR 120dB 50 60Hz Signal Input Range 5 or 10 Vdc Internal Switch Selectable 4 20mA approximately 500mV overhead Max Internal Counts 32 768 over signal input range Max Display Range 99 999 Decimal Point progra...

Страница 5: ...25 inches 6 35mm 2 Insert the instrument into the panel cutout 3 Position the pawls so that their elongated dimension overlaps the panel cutout then tighten the screws Do not over tighten 4 Installation complete WIRING Reference Figures 3 and 4 for TRANSDUCER and I O wiring information Power is applied with a 3 prong AC power cord The instrument is protected by a 250V 250mA fast acting 5mm fuse Th...

Страница 6: ... O J2 TRANSDUCER FUSE 220 240v T250v 250ma 115V 10A 230v 05A Line 50 60 Hz Page 3 MODE TARE CAL CAL TARE SP1 SP2 SP1 SP2 Model 9834 DISP RESET REF PK VAL Pawl Screw 1 of 4 outside screws These 4 screws are used to mount the instrument in a panel Mode Selection Switch SW1 Peak Max or Valley Min Annunciators Decrement or Tare Selection Switch SW2 Dual Function Switch Increment or Calibrate Selection...

Страница 7: ...round Chassis Gnd SP3 SP2 SP1 13 50V 10mA 50V 10mA 50V 10mA 10VDC Analog Output 4 20 mA Analog Output 6 7 Analog Output A Analog Output B Analog Ground 5 Analog Ground Remote Zero 14 Remote Zero Vcc 5 Vdc Logic Supply 15 5Vdc 25mA 9 2 Vcc 5v 50mA max 5 Vref 2 5v 7 8 Relay Contact 1 Relay Contact 2 Transducer Power Transducer Power Return Transducer Signal Transducer Signal Return Activated by REF ...

Страница 8: ...om View 115 220 Solder jumpers shown 2 for 115Vac operation For 230Vac operation remove both 115VAC solder jumpers and add 1 solder jumper here back Vexc Adjust on off not used not used 5VDC 10VDC not used 3 4 1 2 3 4 JUMPERS FOR BAUD RATE 1 2 3 4 Baud Rate On On On Off 1200 On Off On Off 2400 On On Off Off 4800 Off On Off Off 7200 On Off Off Off 9600 Off Off Off Off 19200 Note Jumper shown for de...

Страница 9: ...oint High Setpoint Set Setpoint 3 Value Set SP 00000 to 99999 99999 Setpoint 4 to Monitor SP Instantaneous Peak Valley Peak Valley Instantaneous Setpoint 4 to be SP HI High Setpoint or SP LO Low Setpoint High Setpoint Set Setpoint 4 Value Set SP 00000 to 99999 99999 Hysteresis for Low Setpoints HL 000 to 200 000 Hysteresis for High Setpoints HH 000 to 200 000 Depress Mode Again to Exit AgAIn While...

Страница 10: ...y Switch S5 This switch cycles the readout to display Annunciator s Illuminated Peak Valley Peak and Valley Peak Peak Valley Valley Instantaneous Value None While in the Peak Valley Peak or Valley readout mode the RESET switch S6 resets the readout to the instantaneous value Reset or Exit Switch S6 This switch also serves two functions depending on the present status of S1 If the instrument is in ...

Страница 11: ...ximum response When the difference is again within the bAnd B the filter returns to the selected F FILtEr 100 value Where B is referred to the input signal in volts band value B bAnd 100 on the 10 volt range band value B bAnd 200 on the 5 volt range Examples 1 B 0 5 volts with bAnd 500 10 volt input range 2 B 0 25 volts with bAnd 500 5 volt input range The factory default is bAnd 10 Decimal Point ...

Страница 12: ...rough the various displays To signify which display is being monitored the least significant 7 segment display will be illuminated as shown below INSTANT PEAK VALLEY PEAK VALLEY Setpoint 1 to be SP1 HI SP1 HI SP1 LO This allows Setpoint 1 to be a High or Low Setpoint The Increment or Decrement switches are used to cycle through the HI or LO selection A High Setpoint is disabled when the compared v...

Страница 13: ...e MODE switch will enable the CAL function To exit the MODE sequence without enabling the INCREMENT CAL switch depress the RESET switch 2 Depress MODE S1 switch once The text bAnd followed by the current value of the Filter Window will be displayed Use S2 S3 and or S4 to change the current value To store the selected value in non volatile memory depress the MODE switch To exit the MODE sequence wi...

Страница 14: ...f the Full Scale Number will be displayed Use S2 S3 and or S4 to change the current value To store the selected value in non volatile memory depress the MODE switch To exit the MODE sequence without storing the new value in non volatile memory depress the RESET switch Reference Full Scale Number in the Function Definitions section for more information 7 Depress MODE S1 switch once The text SP1 wil...

Страница 15: ...nce SP1 HI setup instructions on Page 11 to set SP2 HI or SP2 LO 12 Depress MODE S1 switch once The text SEt SP will be displayed momentarily followed by the current value of Setpoint 2 Reference SEt SP setup instructions above to set a new value for Setpoint 2 13 Depress MODE S1 switch once The text SP3 will be displayed Reference SP1 setup instructions on Page 11 to set SP3 14 Depress MODE S1 sw...

Страница 16: ... Hysteresis Low Use S2 S3 and or S4 to set a new value for HL To store the new value of HL in non volatile memory depress the MODE switch To exit the MODE sequence without storing the new value depress the RESET switch 20 Depress MODE S1 switch once The text HH will be displayed momentarily followed by the current value of Hysteresis High Use S2 S3 and or S4 to set a new value for HH To store the ...

Страница 17: ...ulate the CAL NUMBER CAL by verifying the load that will be used to calibrate the Model 9834 Example If a 500 pound load is used to calibrate and the desired readout is 500 0 the CAL NUMBER will be 5000 The decimal point can be selected later If the desired readout is 500 then the CAL NUMBER will be 500 4 Calculate the FS NUMBER FS This is the value used by the microprocessor to set the full scale...

Страница 18: ... FULL SCALE load to the transducer If a voltage generator is used set it to the the desired voltage setting The instrument should display a value greater than 01000 For optimum performance the readout should be closer to 32000 Ignore the decimal point 13 Depress the CAL S3 switch once The CAL LED should turn on and the readout will display the CAL NUMBER 1 digit 14 The CALIBRATION sequence is now ...

Страница 19: ...With no load on the transducer verify the readout is approximately zero 8 Depress the TARE S2 switch once The TARE LED should illuminate and the readout should be ZERO 1 digit 9 Depress and hold the REF switch The display should read a value greater than 01000 For optimum performance the readout should be closer to 19000 Ignore decimal point While holding down the REF switch depress the CAL S3 swi...

Страница 20: ...The RS232 data is transmitted in 8 sequential bytes in binary or bit significant format depending on the parameter The data has the following significance Byte Description 1 Status Byte Setpoint Status The status is contained in one byte and is bit significant A logical 1 indicates setpoint value exceeded Bit Status of Bit Status of 0 SP1 4 Not Used 1 SP2 5 Not Used 2 SP3 6 Not Used 3 SP4 7 Not Us...

Страница 21: ...dent of the XON XOFF All commands are ASCII strings and must terminate with a CR hex OD and only a CR The RS232 port is active only when in the data display mode and will not respond to commands if the unit is in the MODE sequence S elect Commands To select or change the function being displayed and being transmitted by the RS232 port send the Model 9830 an ASCII string S consisting of two charact...

Страница 22: ...onitor function See Table below MP 0000x Sets SP3 to HI or LO where x is H or L MQ nnnnn Sets the value of SP3 to nnnnn MR 000nn Sets SP4 to monitor function See Table below MS 0000x Sets SP4 to HI or LO where x is H or L MT nnnnn Sets the value of SP4 to nnnnn MU 00nnn Sets Hysteresis High HH to nnn where 000 nnn 200 MV 00nnn Sets Hysteresis Low HL to nnn where 000 nnn 200 nn Function for SP 00 I...

Страница 23: ...e S denotes the sign bit S 1 if the number is negative A given 32 bit value is stored in memory as 31 30 23 22 0 S Exponent Mantissa Zero is represented by 4 bytes containing only zeroes Function monitored by setpoint and setpoint type High or Low stored as 7 4 3 0 High or Low Function Monitored where High 0001 and Low 0000 and Function nn See MODE commands shown on Page 19 V iew Command The entir...

Страница 24: ...REV A 11 21 07 7401 E Butherus Dr Scottsdale AZ 85260 TEL 480 948 5555 FAX 480 948 1924 www interfaceforce com ADVANCED FORCE MEASUREMENT ...

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