Model 2499-DIGIO
Contents
1. Model 2499 DIGIO Packing List Overview The Model 2499 DIGIO shown in Figure 1 is a digital I O expansion option for Keithley SourceMeters With the Model 2499 connected to the SourceMeter the Digital I O Port is expanded to provide 16 bit operation 16 output lines This allows you to utilize more component bins for limit testing When using a category pulse component handler up to 16 bins can be used in your test system When using a category register component handler you can use as many bins as you need The digital I O port of the SourceMeter can also be used to control other external devices NOTE This packing list provides supplemental operating information Refer to the SourceMeter User s manual for details on the digital I O and limit testing Figure 1 Model 2499 DIGIO MODEL 2499 DIGIO 42V MAX 100mA PER PIN MAX WARNING TheModel 2499 DIGIO is not intended for use in circuits carrying voltages in excess of 30V RMS 42 4V peak or 60VDC Connections The Model 2499 has a female DB 9 connector on one end and a standard female DB 37 connector on the other end The end with the DB 9 connector mates directly to the digital I O port on the rear panel of the SourceMeter Make sure the SourceMeter is turned off before connecting the Model 2499 Use a cable terminated with a standard male DB 37 connector to connect your external circuit s to the digital I O port Pin identification for the DB 37 connector of the2. Model 2499 is provided in Figure 2 Note that EOT EOT BUSY and BUSY use a dedicated line pin 34 when the Model 2499 is used PA 651 Rev A 7 99 DB 37 pinout OO0Oo0o0o000000000000000 oOooo0oo0oo0000000000000 37 20 Bank A Bank B Output 1 Pin5 Output 9 Pin 24 Output 2 Pin 6 Output 10 Pin 25 Output 3 Pin 7 Output 11 Pin 26 Output 4 Pin 8 Output 12 Pin 27 Output 5 Pin 9 Output 13 Pin 28 Output 6 Pin 10 Output 14 Pin 29 Output 7 Pin 11 Output 15 Pin 30 Output 8 Pin 12 Output 16 Pin 31 5V Pin 14 Ground Pins 13 and 32 Interlock Pin 15 SOT Pin 33 EOT EOT BUSY BUSY Pin 34 16 bit output patterns Digital output sze In order to set a 16 bit output pattern the 16 bit digital output size must be selected From the front panel the following menu sequence selects the16 bit digital output size Press CONFIG gt press LIMIT gt select DIGOUT gt select SIZE gt select 16 BIT For remote operation the following command selects the 16 bit digital output size SOURce2 BSIZe 16 NOTE The rest of the information in this packing list assumes that the 16 bit digital output size is selected O utput pattern formats When using the Model 2499 the SourceMeter you can output binary bit patterns from 0 to 1111111111111111 From the front panel an output bit pattern must be entered as a decimal value 0 to 65535 Table 1 shows the decimal weight of each output line For ex ample if you want outp
3. at terns in the decimal format from 0 to 65535 For remote operation commands to set and read output patterns are listed in Table 2 Table 2 Commands to set and read digital output patterns Command Description 2 CALCulate2 LIMit 1 COMPliance SOURce2 lt NRf gt lt NDN gt Limit 1 fail pattern CALCulate2 LIMitX LOWer SOURce2 lt NRf gt lt NDN gt Lower limit X fail pattern for grading mode CALCulate2 LIMitX UPPer SOURce2 lt NRf gt lt NDN gt Upper limit X fail pattern for grading mode CALCulate2 LIMitX PASS SOURce2 lt NRf gt lt NDN gt Limit X pass pattern for sorting mode CALCulate2 CLIMits PASS SOURce2 lt NRf gt lt NDN gt Composite pass pattern Sorting mode only if limits 2 3 and 5 12 disabled CALCulate2 CLIMits FAIL SOURce2 lt NRf gt lt NDN gt Composite fail pattern for sorting mode SOURce2 TTL LEVel DEFault lt NRf gt lt NDN gt Set digital I O port output pattern SOURce2 TTL LEVel DEFault Query default output pattern SOURce2 TTL LEVel ACTual Query actual output pattern CALCulate2 LIMit4 SOURce2 lt NRf gt lt NDN gt Limit 4 fail pattern a lt NRf gt 0 to 65535 Decimal format lt NDN gt B0 to B1111111111111111 Binary format Q0 to Q177777 Octal format H0 to HFFFF Hexadecimal format 1 LIMitX LIMit2 LIMit3 LIMit5 through LIMit12 2 LIMit 4 is only available for a 2400 series SourceMeter and only if the contact check option is
4. current e 16 output lines The 16 output lines are divided into two banks Bank A consists of outputs 1 through 8 and Bank B consists of outputs 9 through 16 The maximum allowable total sink current for each bank is 300mA The maximum allowable sink current for any individual output line is 100mA If for example each external device causes maximum sink current 100mA you can connect six of those devices to the output lines three to Bank A and three to Bank B EOT EOT BUSY BUSY line Maximum allowable sink current is 5 00mA Maximum input voltage e The absolute maximum allowable input voltage on any line of the digital I O is 42V Source current limits e 16 Output lines The source current for each output line is limited to approximately 2mA at TTL high levels e 5V line The source current for this 5V output is limited to approximately 300mA O utput voltage e 16 output lines and E OT EOT BUSY BUSY line The maximum working output voltage for these lines 30V
5. installed Controlling other external devices There are two basic methods to control other external components such as relays using the digital I O port of the SourceMeter sink operation or source operation Section 13 of the Model 2400 Series User s Manual describes sink and source operation for the digital I O port Digital output control From the front panel the output pattern in the decimal format can be set from 0 to 65535 Use the following menu sequence to set the output pattern Press MENU select GENERAL select DIGOUT set the output pattern For remote operation the output pattern can be set in the decimal binary octal or hexadecimal format Use the following com mands to set and read the output pattern SOURce2 TTL LEVel DEFault lt NRf gt lt NDN gt Set output pattern SOURce2 TTL LEVel DEFault Query default output pattern SOURce2 TTL LEVel ACTual Query actual output pattern See Output pattern formats for information on value ranges for the lt NRf gt and lt NDN gt parameters and format selection for the query commands Input output limits CAUTION When not using the M odel 2499 3 bit 4 bit operation the maximum sink current for an output line is 500mA This maximum sink current is NOT valid with the M odel 2499 con nected to the SourceM eter To prevent damage to the SourceM eter do not exceed the maximum sink current and maximum input voltage for the I O port Maximum sink
6. ut lines 10 and 3 to be high 1000000100 you would set the output pattern to 516 Table 1 Decimal weighting for output lines Output line 16 15 14 13 12 11 10 9 Decimal weight 32768 16384 8192 4096 2048 1024 512 256 Output line 8 7 6 5 4 3 2 1 Decimal weight 128 64 32 16 8 4 2 1 For remote operation an output bit pattern can be set in the decimal binary octal or hexadecimal format When sending a com mand to set an output bit pattern there are two parameter types to express the value For the decimal format an lt NRf gt parameter type is required For any of the non decimal formats an lt NDN gt parameter type is used Parameter value ranges for 16 bit opera tion are as follows lt NRf gt 0 to 65535 Decimal format lt NDN gt B0 to B1111111111111111 Binary format Q0 to Q177777 Octal format HO to HFFFF Hexadecimal format When you send a query command to read the output pattern the returned value will be in the format selected by the following command FORMat SOURce2 lt name gt where lt name gt ASCII Decimal format BINary Binary format OCTal Octal format HEXadecimal Hexadecimal format Other than increasing the number of output bit patterns that can be set which allows more component bins to be used limit test operation is not changed by the Model 2499 For front panel operation the various output pattern menus let you set bit p
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