Quantum Composers 9730 Series User manual

9730 Series Pulse Generator
Operating Manual
Version 1.2
Quantum Composers, INC
212 Discovery Drive
Bozeman, MT 59718
Phone: [phone]
Fax: [phone]
www.quantumcomposers.com
Your distributor:

1-2
1 Table of Contents
1 TABLE OF CONTENTS.......................................................................................................................1-2
2 INTRODUCTION..................................................................................................................................2-5
TECHNICAL SUPPORT .............................................................................................................................. 2-5
WARRANTY .............................................................................................................................................2-5
PACKAGE CONTENTS...............................................................................................................................2-5
3 SAFETY ISSUES....................................................................................................................................3-6
4 PRODUCT OVERVIEW.......................................................................................................................4-7
Key Features......................................................................................................................................4-7
Advanced Features/Options............................................................................................................... 4-7
5 PULSE GENERATOR CONCEPTS AND OPERATION.................................................................5-8
System Timer Functions.....................................................................................................................5-8
Channel Timer Functions ..................................................................................................................5-8
Navigating the 9730 Front Panel.......................................................................................................5-8
6 FRONT PANEL OVERVIEW............................................................................................................6-11
9730 DISPLAY ....................................................................................................................................... 6-11
Display Layout and Indicators......................................................................................................... 6-11
DESCRIPTION OF FRONT PANEL AREA................................................................................................... 6-11
Keypads and Keys............................................................................................................................ 6-11
Second Level Menus (Function Key)................................................................................................6-12
Channel Outputs (BNC Connectors)................................................................................................6-12
Channel Status LED Indicators .......................................................................................................6-12
Arm Switch (Keyed) ......................................................................................................................... 6-13
System Status LED Indicators.......................................................................................................... 6-13
Front Sync Output............................................................................................................................6-13
Front Trigger Input..........................................................................................................................6-13
7 REAR PANEL OVERVIEW...............................................................................................................7-14
DESCRIPTION OF REAR PANEL AREA.....................................................................................................7-14
Channel Connections (Banana Jacks).............................................................................................7-14
Rear Sync Output.............................................................................................................................7-14
Rear Trigger Input...........................................................................................................................7-14
Interlock Short .................................................................................................................................7-14
Communication Ports ......................................................................................................................7-14
Voltage Input (AC)...........................................................................................................................7-14
Cooling Fans....................................................................................................................................7-15
8 MENU STRUCTURE ..........................................................................................................................8-16
MODE Menu (FUNC + 1)............................................................................................................... 8-16
RATE Menu (FUNC + 4)................................................................................................................. 8-16
Channel Menu (A, B, C, or D)......................................................................................................... 8-17
Channel Test Menu (FUNC + A, B, C, or D) ..................................................................................8-18
TRIG Menu (TRIG)..........................................................................................................................8-20
Counter Menu (FUNC + 8) ............................................................................................................. 8-20
SYSTEM Menu (FUNC + 3) ............................................................................................................8-21
STORE Menu (FUNC + 6) ..............................................................................................................8-22
RECALL Menu (FUNC + 9)............................................................................................................8-22
9 OPERATING INSTRUCTIONS.........................................................................................................9-23

1-3
QUICK START –INTERNAL SINGLE SHOT GENERATOR OPERATION ......................................................9-23
Pulse Width, Delay...........................................................................................................................9-23
Amplitude.........................................................................................................................................9-23
Enable..............................................................................................................................................9-23
Interlock........................................................................................................................................... 9-23
Wait for Charge ...............................................................................................................................9-23
ARM Key Switch ..............................................................................................................................9-23
Start..................................................................................................................................................9-23
QUICK START –SINGLE SHOT EXTERNAL TRIGGER OPERATION...........................................................9-24
Trig ..................................................................................................................................................9-24
Level................................................................................................................................................. 9-24
Edge................................................................................................................................................. 9-24
Filter ................................................................................................................................................9-24
Source..............................................................................................................................................9-24
Pulse Width, Delay...........................................................................................................................9-24
Amplitude.........................................................................................................................................9-24
Enable..............................................................................................................................................9-24
Interlock........................................................................................................................................... 9-24
Wait for Charge ...............................................................................................................................9-25
ARM Key Switch ..............................................................................................................................9-25
Start..................................................................................................................................................9-25
STANDARD OPERATION MODES ............................................................................................................ 9-25
System Pulse Generation Overview.................................................................................................9-25
Single Shot Mode (Trigger Disabled)..............................................................................................9-25
Burst Mode (Trigger Disabled)........................................................................................................9-25
External Input Overview..................................................................................................................9-26
Single Shot Mode (Trigger Enabled)...............................................................................................9-27
SPECIAL TESTING MODES......................................................................................................................9-27
Pre Pulse Resistance Testing...........................................................................................................9-27
Post Pulse Resistance Testing.......................................................................................................... 9-28
Testing Mode Error/Status Conditions ............................................................................................9-28
10 PROGRAMMING THE 9730 .........................................................................................................10-30
PERSONAL COMPUTER TO PULSE GENERATOR COMMUNICATION....................................................... 10-30
RS232 Interface Overview .............................................................................................................10-30
USB Interface Overview ................................................................................................................ 10-31
Ethernet Interface Overview.......................................................................................................... 10-32
PROGRAMMING COMMAND TYPES AND FORMAT ................................................................................10-32
Line Termination............................................................................................................................ 10-32
IEEE 488.2 Common Command Format....................................................................................... 10-33
SCPI Command Keywords............................................................................................................. 10-33
SCPI Keyword Separator............................................................................................................... 10-33
SCPI Optional Keywords............................................................................................................... 10-34
SCPI Parameter Types................................................................................................................... 10-34
Legacy Command Support............................................................................................................. 10-34
Error Codes ................................................................................................................................... 10-34
PROGRAMMING EXAMPLES ................................................................................................................. 10-35
Example 1:.....................................................................................................................................10-35
Example 2:.....................................................................................................................................10-35
9730 SCPI COMMAND SUMMARY....................................................................................................... 10-36
Instrument Commands................................................................................................................... 10-36
System Pulse Commands................................................................................................................ 10-37
Channel Commands....................................................................................................................... 10-38
Display Commands........................................................................................................................10-39
System Commands .........................................................................................................................10-39
IEEE 488.2 COMMON COMMANDS...................................................................................................... 10-40

1-4
SPECIAL COMMANDS........................................................................................................................... 10-40
APPENDIX A - SPECIFICATIONS......................................................................................................................... A-1
APPENDIX B - SAFETY SYMBOLS....................................................................................................................... B-1
SAFETY MARKING SYMBOLS...................................................................................................................B-1

2-5
2 Introduction
This manual is designed to familiarize you with the Quantum Composers 9730
series pulse generator and is arranged so that you can easily find the information
for which you are looking. Generally, each topic has its own section and no
section assumes that your have read anything else in the manual.
Technical Support
For questions or comments about operating the 9730 our technical staff can be
reached via one of the following methods:
•Phone: [phone]
•Fax: [phone]
•Online: www.quantumcomposers.com
Warranty
In addition to a 30 day money back guarantee, the 9730 has a one-year limited
warranty from the date of delivery. This warranty covers defects in materials and
workmanship. Quantum Composers will replace any defective unit. Contact us
for information on obtaining warranty service.
Package Contents
The box you receive should contain the following:
•9730 Pulse Generator
oAC Power Cord
oAccessories
Arm Switch Keys (qty 2)
50 Ohm Interlock Shorting Jumper (BNC)
•Disc that includes
oOperating Manual
oSoftware Drivers
oCommunication Software
Contact Quantum Composers at [phone] if any parts are missing.

3-6
3 Safety Issues
Normal use of equipment exposes users to a certain amount of danger from
electrical shock because testing must be performed where exposed voltage is
present. An electrical shock causing 10 milliamps of current to pass through the
heart will stop most human heartbeats. Voltages as low as 35 V (DC or RMS
AC) should also be considered dangerous and hazardous since they can
produce a lethal current under certain conditions. Higher voltages pose an even
greater threat because such voltage can more easily produce a lethal current.
Your normal work habits should include all accepted practices that will prevent
contact with exposed high voltage, and those that will steer current away from
your heart in case of accidental contact with a high voltage. You will significantly
reduce the risk factor if you know and observe the following safety precautions:
•If possible, familiarize yourself with the equipment being tested and the
location of its high-voltage points. However, remember that high voltage
may appear at unexpected points in defective equipment.
•Do not expose high voltage components needlessly. Remove housings
and covers only when necessary. Turn off equipment while making test
connections in high-voltage circuits. Discharge high-voltage capacitors
after removing power.
•Use an insulated floor material or a large, insulated floor mat to stand on,
and an insulated work surface on which to place equipment. Make certain
such surfaces are not damp or wet.
•Use the time-proven “one hand in the pocket” technique while handling an
instrument probe. Be particularly careful to avoid contacting a nearby
metal object that could provide a good ground return path.
•When testing AC powered equipment, remember that AC line voltage is
usually present on some power input circuits, such as the on-off switch,
fuses, power transformer etc., and any time the equipment is connected to
an AC outlet, even if the equipment is turned off.
•Never work alone. Someone should always be nearby to render aid if
necessary. Training in CPR first aid is highly recommended.

4-7
4 Product Overview
The 9730 series combines industry leading QC digital delay methodologies along
with high capacity charge banks to generate precisely timed adjustable amplitude
current pulses. This ability to generate highly precise current pulses makes this
unit ideal for applications that require a high level of accuracy and repeatability.
Key Features
•Up to 4 individual outputs with fully individual programming and control.
•Up to 6A output per channel (Standard Instrument).
•Complete channel and system setup stored in memory. Provides 12
memory storage slots.
•Remote programmability – RS232, USB and Ethernet.
•Front and rear external trigger inputs.
Advanced Features/Options
•Resistance measurement (4 wire) for each channel with pre and post
pulse testing features.
•Current and voltage monitor outputs.
•Front and rear sync outputs.
•Safety features including remote interlock and removable keyed enable
switch.

5-8
5 Pulse Generator Concepts and Operation
•Burst Mode
System Timer Functions
The System Timer functions as a non-retriggerable, multi-vibrator T0pulse
generator in ‘Burst’ mode. This means that once started the timer will
produce pulses continuously at the specified rate until the highest channel
burst count is reached. Before pulses can be generated, the timer must
be armed and then receive a System Start pulse. Arming the counter is
done by pressing the RUN/STOP key. With external trigger disabled, the
RUN/STOP key or a software trigger command may be used to generate
the System Start pulse for the counter. With external trigger enabled, the
RUN/STOP key or software trigger command arms the unit and the
subsequent external trigger pulses replace the T0 pulses.
•Single Shot Mode
In ‘Single Shot’ mode, the System Timer is bypassed and the T0pulse is
generated directly from the System Start pulse.
The T0pulses are distributed to the Channel Start input of all of the
Channel Timers.
The Channel Timer functions as a non-retriggerable, delayed, one shot
pulse generator. This means that the timer will only generate one delayed
pulse for every Channel Start pulse received. Once the channel timer has
started counting, additional start pulses will be ignored until the pulse has
been completed (non-retriggerable). The Channel Start pulse for each
channel is provided by the internal T0pulse.
Channel Timer Functions
Whether or not a pulse is generated for each T0pulse is determined by
the channel enable setting.Pulses are defined by a time delay, from their
sync or start pulse to the active edge, a time width over which the pulse is
active, and an amplitude during the active portion of the pulse.
•Selecting Menus
Navigating the 9730 Front Panel
Parameters are grouped in menus, selectable using the function keys. To
select the output channel parameters, press the letter key corresponding
to the desired channel. To select other menus, including the channel test
menus, press the FUNC key and then the key corresponding to the
desired function.

5-9
Menus may include a number of different pages, with each page
containing up to four adjustable parameters or state variables. The status
block in the upper-left corner of the display shows a vertical arrow if the
current menu contains additional pages. To select the next page, press
the channel button again or select the same menu pressing the FUNC key
and the channel/menu key again.
•Selecting Menu Items
Within a menu, the blinking cursor indicates the current menu item for
editing. The NEXT key will select a different adjustable menu item.
•Numeric Input Mode
When the current item is numeric, the system enters the Numeric Input
Mode. In this mode data may be edited in one of two ways:
oArrow Keypad - The Left and Right arrow keys are used to select a
digit to edit. The selected digit blinks to identify itself as the active
digit. The Up and Down arrow keys are then used to increment or
decrement this digit.
oNumeric Keypad - Enter the number, including decimal point using
the numeric keypad. Complete the number using the ENTER key.
Errors may be corrected using the backspace key or to start over
press the clear key (CLR). Pressing the CLR key a second time will
exit the numeric keypad mode and restore the original number.
•Entering Non-Numeric Parameters
When the current item is non-numeric, the Up and Down arrow keys are
used to select among different options for the parameter.
•Alphanumeric Input Mode
When the current item is alphanumeric, the system enters the
Alphanumeric Input Mode. In this mode, data is entered using the
alphanumeric keypad. Pressing a key will display the first letter shown on
the keypad. Repeated key presses will toggle through all the letters, both
upper and lower case, shown on the key cap. To enter two letters which
appear on the same key cap, select the first character, then use the right
arrow to shift to the next position and enter the next letter. The Left and
Right arrow keys may be used to position the cursor to edit any character.
When data entry is complete, the ENTER key must be pressed. The keys
contain the following characters:
o1 => 1 2 3 4 5 6 7 8 9 0
o2 => A B C a b c 2
o3 => D E F d e f 3
o4 => G H I g h i 4
o5 => J K L j k l 5
o6 => M N O m n o 6

5-10
o7 => P Q R S p q r s 7
o8 => T U V t u v 8
o9 => W X Y Z w x y z 9
o0 => 0 1 2 3 4 5 6 7 8 9
o. => . , # $ % & ?
o- => - + * / space
•Enabling System Output
The RUN/STOP key is used to arm the system. With external trigger
disabled, the key will arm and start pulse output. With external trigger
enabled, the key will arm the pulse generator. Pulse output then starts
after the first valid trigger input. With external trigger enabled, pressing
the RUN/STOP key a second time disables the pulse generator.

6-11
6 Front Panel Overview
9730 Display
A graphical display module displays parameters and status information. The
status information is located in the upper-left corner of the display, between the
two brackets. There are three enunciators:
Display Layout and Indicators
Vertical Arrow Indicates there are additional pages to the current
Menu.
Blinking Circle Indicates the unit is actively generating pulses, or
armed and waiting for an external trigger.
Musical Note Indicates the function key has been pressed
The upper-right side of the display contains the title of the currently displayed
menu. The rest of the display is used for system parameters. The display
brightness may be adjusted, allowing the instrument to be used under various
lighting conditions.
Description of Front Panel Area
Four keypads provide fast access to various menus and easy editing of system
parameters.
Keypads and Keys
•Channel Keys Provides one touch access to the desired channel
menu for setting up the channel parameters. The
channel menu keys are indicated with a capital letter
corresponding to the channel (e.g. press the Akey to
display the menu corresponding to channel A). The
FUNC key (solid yellow key at the bottom center of
the numeric keypad) allows the channel keys to select
the channel test menus.
•Trigger Key Provides one touch access to the trigger menu for
setting up trigger parameters. The trigger menu key
is indicated with the letters TRIG.
•Arrow Keypad The up and down arrows (referred to as UP and
DOWN keys for the rest of this document) are used to
increment/decrement the current parameter (indicated
by the blinking cursor). The position of the cursor
controls the step size for each increment. The right

6-12
and left arrows (referred to as LEFT and RIGHT keys
for the rest of this document) move the cursor to
different positions within the current parameter. The
NEXT key selects the next parameter in the currently
displayed menu.
•Numeric Keypad Allows numbers and alphanumeric values to be
entered. When entering alphanumeric values,
pressing a key will display the first letter shown on the
key. Repeated key presses will toggle through all the
letters, both upper and lower case, shown on the
keycap. To enter two letters which appear on the
same keycap, select the first character, then use the
right arrow to shift to the next position and enter the
next letter. When data entry is complete the ENTER
key must be pressed. The FUNC key allows a key to
select the secondary function/menu in yellow directly
above the key.
The second level menus (indicated in yellow above certain keys) are accessed
through the use of the yellow FUNC key. Pressing the FUNC key once and then
pressing the desired menu key will display the specified second level menu.
Pressing the FUNC key twice in succession will put the unit into Function Lock
mode, where the second level menus can be accessed without repeatedly
pressing the FUNC key. Pressing the FUNC key a third time will exit Function
Lock mode.
Second Level Menus (Function Key)
Each channel has two outputs on the front panel:
Channel Outputs (BNC Connectors)
1. Voltage Monitor This is an analog representation in volts of the voltage
output to the load. The transfer function of this
follower is 0.2 V/V, as listed directly below the monitor
BNC connector.
2. Current Monitor This is an analog representation in volts of the current
output to the load. The transfer function of this
follower is 0.5 V/A, as listed directly above the monitor
BNC connector.
The outputs of the voltage and current monitors are optically isolated and
have a typical 1us delay.
Each channel has four panel LED indicators and one button led indicator to
reflect the current status of the channel:
Channel Status LED Indicators

6-13
•ARMED Green LED indicating the channel is armed and
ready.
•CHARGE READY Amber LED indicating the channel capacitor bank is
charged and ready.
•RESISTOR FAULT Red LED indicating the pre test error status of the
current channel.
•GROUND FAULT Red LED indicating the pre test error status of the
current channel.
•Channel Button Green LED back illuminating button text when the
channel is enabled.
The upper right hand corner of the front panel contains a safety Arm Switch
which may be turned to the ‘STANDBY’ position while changing parameters to
ensure no pulses are generated. This switch must be in the ‘ARM’ position in
order to allow generation of pulses.
Arm Switch (Keyed)
NOTE: The Arm switch keys are included with the shipped accessories.
The system state has two front panel LED indicators to reflect the current system
state:
System Status LED Indicators
•Power Green LED back illuminating button text when system
is powered on.
•ARM Red LED indicating the system arm keyswitch is in
the “Arm” position.
•Trigger Green LED back illuminating button text when the
global system trigger is enabled.
•Run Green LED back illuminating button text while system
is pulsing or ready to trigger.
The front panel sync output is user selectable to output the TTL representation of
the system pulse or any of the individual channels. This output may also be
disabled.
Front Sync Output
The front panel trigger input is user selectable as the source for the global
system trigger.
Front Trigger Input

7-14
7 Rear Panel Overview
Description of Rear Panel Area
Each channel has two sets of banana jacks for connecting to the device under
test:
Channel Connections (Banana Jacks)
•OUTPUT Red and Black current jacks (labeled ‘A’ between
them) connect to the positive and negative drive
terminals (respectively) of the device under test.
•MEASURE Red and Black voltage sense jacks (labeled ‘V’
between them) connect to the positive and negative
measurement terminals (respectively) of the device
under test. This connection is optional when pre
and/or post resistance tests are not enabled.
The rear panel sync output is user selectable to output the TTL representation of
the system pulse or any of the individual channels. This output may also be
disabled.
Rear Sync Output
The rear panel trigger input is user selectable as the source for the global system
trigger.
Rear Trigger Input
This is a protection jumper required for system or channels to enable or arm. It is
labeled ‘INTLK’ on the rear panel overlay. A bypass shorting jumper is included
with the instrument when shipped.
Interlock Short
This instrument ships with RS232 and USB communications installed. An option
to include Ethernet may be specified at the time the order is placed. The rear
panel overlay labels for the communications connections are ‘RS232’, ‘USB’, and
‘ETHERNET’ respectively.
Communication Ports
A switched and fused AC input connection is located on the rear panel along with
markings indicating the required voltage and maximum current draw.
Voltage Input (AC)

7-15
The rear panel also contains one or two cooling fan outputs depending on
whether the instrument has two or four channels respectively. Air is circulated in
through the rear panel and out through the side panel openings. WARNING: DO
NOT BLOCK COOLING FAN INPUTS OR OUTPUT(S).
Cooling Fans

8-16
8 Menu Structure
•Page0
MODE Menu (FUNC + 1)
oLine0 – empty
oLine1 – Mode: Single Shot, Burst
oLine2 – empty
oLine3 – empty
Setting System Mode Parameters
Mode:Selects the T0mode: Single Shot or Burst mode.
Note: When Trigger is enabled while in Burst mode, burst mode is
disabled and the unit will perform as in Single Shot mode. The
display will show “Burst(Disabled)” on the Mode: line.
•Page0
RATE Menu (FUNC + 4)
oLine0 – empty
oLine1 – empty
oLine2 – Per: <period>
oLine3 – decimal place indicator
Setting System Rate Parameters
Per: Sets the T0period which determines the burst mode output
frequency of the unit.

8-17
•Page0
Channel Menu (A, B, C, or D)
oLine0 – Channel: Enabled, Disabled
oLine1 – Wid: <width>
oLine2 – Dly: <delay>
oLine3 – decimal place indicator
•Page1
oLine0 – ‘Enable’ Enabled, Disabled
oLine1 – empty
oLine2 – Brst: <burst>
oLine3 – Ampl: <amplitude>
Setting Channel Output Parameters
‘Enable’ Enables or disables the channel for pulsing.
Wid: Sets the channel pulsewidth.
Dly: Sets the channel delay until active edge.
Brst: Sets the burst count for the channel. When system is
in ‘Single Shot’ mode, this parameter will display
‘(Disabled)’ and not be adjustable.
Ampl: Sets the amplitude of the output current pulse.
Offs: Sets the amplitude offset of the output current pulse.

8-18
•Page0
Channel Test Menu (FUNC + A, B, C, or D)
oLine0 – empty
oLine1 – PreTest: Disabled
oLine2 – empty
oLine3 – empty
•Page0 – Alt
oLine0 – empty
oLine1 – PreTest: Enabled
oLine2 – PreMeas: “measured resistance”
oLine3 – empty
•Page1 – (Only available when PreTest is Enabled)
oLine0 – empty
oLine1 – PreMax: <pretest maximum resistance>
oLine2 – PreMin: <pretest minimum resistance>
oLine3 – IPreMax: <pretest measurement current>
Setting Channel Pre-Test Parameters
PreTest: Enables or disables pre resistance test and
requirements for the channel.
PreMeas: Displays the measured resistance from the last run
pre-test.
PreMax: Sets the maximum resistance allowable for pulse
generation.
PreMin: Sets the minimum resistance allowable for pulse
generation.
IPreMax: Sets the test current for measuring the resistance.
•Page2
oLine0 – empty
oLine1 – PostTest: Disabled
oLine2 – empty
oLine3 – empty
•Page2 - Alt
oLine0 – empty
oLine1 – PostTest: Enabled
oLine2 – PstMeas: “measured resistance”
oLine3 – TstType: Standard, Outside, Outside Pre
•Page3 – (Only available when PostTest is Enabled)
oLine0 – empty
oLine1 – PstMax: <post-test maximum resistance>
oLine2 – PstMin: <post-test minimum resistance>

8-19
oLine3 – IPstMax: <maximum test current>
Setting Channel Post-Test Parameters
PstTest: Enables or disables post resistance test and
requirements for the channel.
PstMeas: Displays the measured resistance from the last run
post-test.
TstType: Sets the type of test for determining pass/fail
condition of the Post Test. The types are as follows:
Standard – Indicates “Ground Fault” if PstMeas is less
than PstMin and “Resistance Range Error” if above
PstMax if PstMax is enabled.
Outside – Indicates “Resistance Range Error” if
PstMeas is between PstMin and PstMax.
Outside Pre – Indicates “Resistance Range Error” if
PstMeas is between PreMin and PreMax.
PstMax: Sets the maximum resistance allowable to consider a
post-test as passed. (May be disabled by setting to 0
through the command interface)
PstMin: Sets the minimum resistance allowable to consider a
post-test as passed.
IPstMax: Sets the maximum test current for measuring the
resistance.

8-20
•Page0
TRIG Menu (TRIG)
oLine0 – empty
oLine1 – Mode: Disabled
oLine2 – empty
oLine3 – empty
•Page0 – Alt
oLine0 – empty
oLine1 – Mode: Enabled
oLine2 – Level: <trigger threshold level>
oLine3 – Edge: <trigger edge>
•Page1
oLine0 – empty
oLine1 – Filter: Disabled
oLine2 – empty
oLine3 – Source: Front Input, Rear Input
•Page1 - Alt
oLine0 – empty
oLine1 – Filter: Enabled
oLine2 – MinWid: <minimum trigger pulse width>
oLine3 – Source: Front Input, Rear Input
Setting Trigger Parameters
Mode: Enables or disables external trigger operation.
Level: Sets the trigger threshold level.
Edge: Sets the triggering edge to rising or falling.
Filter: Enables or disables minimum trigger pulse width
filtering.
MinWid: Sets the minimum allowable trigger pulse width.
Source: Sets the trigger input source to front panel or rear
panel
•Page0
Counter Menu (FUNC + 8)
oLine0 – empty
oLine1 – Counter: Disabled, Enabled
oLine2 – Counts: “system pulse count since reset”
oLine3 – CLR to zero counter.
Setting Counter Parameters
Counter: Enables or disables the T0pulse counter.
Counts: Returns the current value of the counter.