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Spellman High Voltage Electronics Corporation One Commerce Park, 
Valhalla, NY 10595, (914) 686-3600, Fax: (914) 686-2870 

 
 
FIGURE 3.1
 
 

At power –on before any command is sent, the status byte is: 

 
Note that the MSB is logic 1 which identifies this byte as the status register contents at power on, prior to 
the issuance of any command.  IF the user does not do a serial poll at power on and sends any command, 
the status byte obtained in response to a subsequent serial poll will appear as seen in FIGURE 3.2 below. 
FIGURE 3.2 
 

After first command the register looks like this: 

 
 

 
 
 
 
Note that the MSB of this byte is logic 0 which identifies this byte as the status register contents following 
the issuance of at least one command since power on. 
 
When the SQR bit is logic 1, it means this status byte is in response to the first serial poll following the 
issuance of an SRQ.  If the SQR bit is logic 0, it means that the status byte obtained is one you have 
previously examined and/or is not in response to a service request. 
 
When the invalid request bit is logic 1, it means that you have issued a command the unit cannot recognize.  
Normally this bit stays at logic 0. 

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Содержание 205B-05R

Страница 1: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

Страница 2: ...d labor to repair or replace FOB our factory products proved to be defective during the warranty period We are no liable for consequential damages incurred due to the failure of this equipment No other warranty is expressed or implied All products returned under warranty must be shipped prepaid to the factory with documentation describing the malfunction noted It is recommended that the factory be...

Страница 3: ...operation the 200 C488 provides the user with a number of additional functions such as programmable overload detection and response The GPIB controller may send commands to the interface that programs the output and set other user programmable parameters and read back output meter readings and status information The 200 C488 is a single 19inch rack mountable unit that is 3 1 2 inches high It is AC...

Страница 4: ...5 230 Vac 10 50 60 Hz single phase The LINE VOLTAGE selector switch on the rear panel selects either 115Vac operation 2 3 PROGRAM CONTROL SWITCH Before the Series 205A 210 may be used in a GPIB system the power supply must be configured by setting the power supply s rear panel REMOTE LOCAL control switch in the remote position 2 4 GPIB ADRESS SWITCH Located on the rear panel of the 200 C488 is an ...

Страница 5: ...pellman High Voltage Electronics Corporation One Commerce Park Valhalla NY 10595 914 686 3600 Fax 914 686 2870 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 6: ...s only at power on and if it is to be changed the unit must be turned off and then back on or reset Figure 2 2 is a representation of the switch as it would be seen on the PCB FIGURE 2 2 Table 2 1 CONFIGURATION SWITCH SETTINGS BY MODEL SWITCH POSITION MODEL 1 2 3 4 5 6 205A B 01R 0 0 0 0 0 0 205A B 03R 0 0 0 0 0 1 205A B 05R 0 0 0 0 1 0 205A B 10R 0 0 0 0 1 1 205A B 20R 0 0 0 1 0 0 205A B 30R 0 0 ...

Страница 7: ...he service request is the mechanism by which the 200 C488 may interrupt the GPIB controller and the serial poll is how the GPIB controller may read the status of the 200 C488 3 1 2 1 SERVICE REQUEST There are two conditions that will cause the 200 C488 to generate a service request at power on and during user programmed overload detection The meaning of the serial poll status byte that is read dep...

Страница 8: ...first command the register looks like this Note that the MSB of this byte is logic 0 which identifies this byte as the status register contents following the issuance of at least one command since power on When the SQR bit is logic 1 it means this status byte is in response to the first serial poll following the issuance of an SRQ If the SQR bit is logic 0 it means that the status byte obtained is...

Страница 9: ...e current voltage program They perform to 0 volts regardless of the current voltage program They perform identically to the user command S explained in section 3 2 4 3 1 4 DEVICE TRIGGER FUNCTION DTI The device trigger function is used to update the previously programmed parameters It performs the same as the user command G explained in section 3 2 3 and has the additional capability of triggering...

Страница 10: ...umeric string K Where numeric string is an ASCII string of five digits with a decimal point The resolution of the programming value and monitors is five digits Since a Series 205A 210 power supply may each have a different output rating the programming command will have different formats In general the program command will be one of those shown below Px xxxxK Pxx xxxK The numeric format x xxxx or ...

Страница 11: ...ts to 1 05mA Lxxx xxU L473 50U limits to 473 5uA The actual limit values will not change after the limit command until the 200 C488 receives a device trigger bus command or the G command string see sections 3 1 4 and 3 2 3 3 2 3 ENTERING THE CURRENT PROGRAMMING LIMIT VALUES G After executing a programming or limit command these new values will not be used immediately The user must execute the G co...

Страница 12: ... REQUEST RESPONSE N Just as the 200 C488 may be made to shut off the output during an overload it may be may to generate a service request to the GPIB controller The syntax is N numeric where numeric is the ASCII byte for 0 1 2 or 3 and N0 Enable SQR in response to an overvoltage or overcurrent detection N1 Enable SQR in response to an overvoltage detection only N2 Enable SQR in response to an ove...

Страница 13: ...laced with an S that means the output was shutdown by user with an Z command or device clear bus command or a T in that means the output was tripped due to an overload detection where V in the string means voltage I in the string means current K in the string means kilovolts M in the string means milliamps U in the string means microamps SECTION IV MAINTANENANCE 4 1 GENERAL The 200 C488 interface ...

Страница 14: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

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