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Summary of Contents for ORTEC 996
- Page 1 Model 996 Timer and Counter Operating and Service Manual ® Printed in U.S.A. ORTEC Part No. 736820 1202 Manual Revision F...
- Page 2 In the event ORTEC fails to manufacture or deliver items called for in this agreement or purchase order, ORTEC’s exclusive liability and buyer’s exclusive remedy shall be release...
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Page 3: Table Of Contents
5. PROGRAMMING THE 996 ........ - Page 4 A.6. CATALOG OF COMMANDS FOR THE 996 ........27 APPENDIX B. RESPONSE RECORDS FROM THE 996 MODULE ......31 B.1.
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Page 5: Safety Instructions And Symbols
SAFETY INSTRUCTIONS AND SYMBOLS This manual contains up to three levels of safety instructions that must be observed in order to avoid personal injury and/or damage to equipment or other property. These are: DANGER Indicates a hazard that could result in death or serious bodily harm if the safety instruction is not observed. -
Page 6: Safety Warnings And Cleaning Instructions
SAFETY WARNINGS AND CLEANING INSTRUCTIONS DANGER Opening the cover of this instrument is likely to expose dangerous voltages. Disconnect the instrument from all voltage sources while it is being opened. WARNING Using this instrument in a manner not specified by the manufacturer may impair the protection provided by the instrument. - Page 7 This instrument may have been manufactured with round LED indicators instead of triangular shaped ones as shown.
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Page 8: Description
Both positive and negative sensing inputs to the in the print loop. In place of the 777A, the ORTEC counter are available on the front panel. The Model 879 Buffered Interface can be utilized with negative input is designed to accept standard NIM the print loop. -
Page 9: Specifications
The GATE LED is illuminated when the Model 996 is enabled to count. Selection of the The counting function of the entire module can be 0.01-s, 0.01-min, or external time base is made by disabled by holding the GATE input below +1.5 V... -
Page 10: Controls Display
REMOTE A single LED labeled REM indicates that output from discriminator facilitate the 996 is under computer control and that all front- adjustment using an oscilloscope. panel controls are disabled. This mode is set by the ENABLE-REMOTE command. AUTOMATIC RECYCLE WITH DISPLAY DWELL... -
Page 11: Inputs
996 reaches the preset CHAMP™, female connector containing signals for value. Upon reaching preset the 996 latches its data the standard ORTEC daisy chain print loop into a buffer, resets the counters, and starts the operations. -
Page 12: Electrical And Mechanical
50 mA 600 mA 3. INSTALLATION Before inserting the Model 996 into the bin, set the There are two important points to consider when switches and jumpers for the desired operating supplying signals to the 996: (1) A single pulse conditions. -
Page 13: Counter Input Select Jumper
External time base is selected. 3.5. SIGNAL CONNECTIONS COUNTER INPUT The 996 accepts and counts, The 996 is shipped from the factory with W3 set to either fast-negative logic pulses or positive pulses the COUNT position. with an amplitude from 0.1 to 10 V. The negative input threshold is fixed at -250 mV. -
Page 14: Output Connections
To preset the time interval, select PRESET as the displayed value. Press the Select push button until be connected to the 996 through the GATE input on the LED indicator for the M register is lighted. Next, the front panel. With no input to this BNC, or with a press the Advance push button until the correct voltage level >+3 V, the 996 is enabled to accept... -
Page 15: Operating Instructions
20-mA current loop circuit, (2) the cable are given in Table 2. IEEE-488 (GPIB) interface (1978 standard digital interface bus), and (3) the ORTEC standard print loop interface. Each of these interfaces is a separate plug-in card that is easily installed in the field. -
Page 16: 20-Ma Current Loop Output
1 .Character length set to 8 bits. to a computer or terminal. This cable is available 2. Parity check and generation disabled. from ORTEC (Appendix C, Optional Parts List). 3. Parity selection set to even. 4. Stop bit selection set for 1. -
Page 17: Installation Instructions
data collected without the need for commands from Use care to ensure proper match-up of a computer or keyboard. When the interface is in- connector and pins. stalled in a Counter/Timer and the module is started 5. Install the two mounting screws into the with the Count control, each time the preset value standoffs provided on the counter board. - Page 18 EOI (End Or Identify) The fifth bus management line used to indicate the end of a multiple-byte transfer sequence. This line is asserted with the last byte of a data record. The IEEE-488 (GPIB) interface is a separate PWB that plugs into the module counter board and is held in place with two screws.
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Page 19: Using The 99X-2 With A Printer
4.2.1. USING THE 99X-2 WITH A PRINTER transferred to the printer. If the Recycle mode is selected, the counter will be cleared and a new data By placing the PRINT ONLY-NORMAL (S2-8) to the collection cycle started as soon as the counter is PRINT ONLY position, the 99X-2 Interface will drive enabled either by the Count control if the counting a printer with an IEEE-488 (GPIB) interface directly... -
Page 20: Print Loop Interface (Model 99X-3)
Model 879 Buffered Interface, providing the Model 994 or 995, the jumpers must be set to the interface from the loop to a computer or printout DUAL position. If used with the Model 996 or 997, device. the jumpers must be in the SINGLE position. -
Page 21: Installation Instructions
PRINT prepares the modules in the loop for data 4. Set both W1 and W2 jumpers for Models 994 transfer. and 995 to the DUAL position and Models 996 and 997 to the SINGLE position. PRINT ADVANCE advances the module through its 5. -
Page 22: Programming The 996
996 and the device to which it is connected are set to exactly the same conditions. These Now that communication has been established, try... -
Page 23: Basic Programming
5.1.2. BASIC PROGRAMMING Refer to Appendix A and exercise the remainder of Connect the 996 to the computer via the RS-232-C the commands until you are familiar with the cable (refer to Section 4 for proper cable actions and responses. This will prove valuable connections). -
Page 24: Interfacing To The Ieee-488 Bus
IEEE-488 bus is ensuring that the address switches this section are the Hewlett-Packard and the IBM- in the 996 are set correctly and that the correct PC compatibles. For other computers, there should address is used when accessing the 996 in a be enough information included to allow interfacing program statement (Section 4). -
Page 25: Hewlett-Packard Computer Examples
IEEE-488 bus cable to the connector on the rear serial poll of the 996 and assigns the status byte, panel of the 996. Turn On the power to the bin. The which is an 8-bit binary value, to the variable A. - Page 26 %000000069 OUTPUT 704; "STOP" In the above commands, the firmware version ENTER 704; A$ installed in the 996 is asked for, the string is DISP A$ assigned to A$ and displayed to the screen, and the %000000069 response record is read, which indicates that everything is O.K.
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Page 29: Ibm-Pc Programming Examples
The results DEV4: ibrd 12 of the poll (0X40) show that the service request was [2100] (END CMPL) being asserted by the 996 (40 hex is bit 6 of the serial poll status byte set to a 1). - Page 30 DEV4: DEV4: ibrd 12 The next command will load a preset value to the [2100] ( END CMPL) 996. This is an example of a command that must COUNT: 11 include parameters. 25 30 30 30 30 30 30 30...
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Page 34: Appendix A. Ascii Commands To The Module
APPENDIX A. ASCII COMMANDS TO THE MODULE This appendix describes the ASCII command A.3. CHECKSUMS format used by the 996 module. A checksum may optionally be included at the end of a command record. It is used by the module... -
Page 38: Appendix B. Response Records From The 996 Module
The record delimiter for communications example (see code below), % 005 002 could be with the 996 module is either a carriage return or a derived by OR-ing % 001 with % 004 (power-up just line feed character, or both, as follows: occurred and a self-test failed), with the 002 indicating that the ROM-1 test failed. -
Page 39: Dollar Response Records
% 130 004 CCC UART framing error parameter % 130 008 CCC IEEE-488 communications % 131 130 CCC invalid third command parameter error % 131 131 CCC invalid fourth command % 130 128 CCC input checksum error parameter % 130 129 CCC input record too long % 131 132 CCC invalid number of parameters... -
Page 40: Appendix C. Optional Parts List
A maximum cable length of 50 feet should be used Information about or orders for parts should be for the RS-232-C interface. The following cables submitted to an ORTEC sales representative or to should only be used for data rates of 9600 baud or the following address: less;... - Page 41 Coaxial *17 - 12 V Coaxial Spare bus Coaxial Reserved bus *41 117 V ac (neutral) Spare *42 High-quality ground Spare Ground guide pin Reserved Pins marked (*) are installed and wired in ORTEC’s 4001A and 4001C Modular System Bins.
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