Quartech 2800 User manual

Product Manual
2800
Compact Operator Interface Terminal
for use with
Allen-Bradley ULTRA 3000 Drives
Quartech Corporation
15923 Angelo Drive
Macomb Township, Michigan 48042-4050
Phone: [phone] FAX: [phone]
www.quartechcorp.com
PM2800U3K Revision 4
The product described in this document can have a variety of uses, the user and those responsible for applying this
equipment must satisfy themselves as to the acceptability of each application and the use of the unit. Under no
circumstances will QUARTECH CORPORATION be responsible or liable for any damage, including indirect or
consequential losses resulting from the use, misuse, or application of the unit.
The text, illustrations, charts, and examples included in this document are intended solely to help explain applications
of the product. Due to the many variables associated with specific uses or applications, QUARTECH CORPORATION
cannot assume responsibility or liability for actual use based upon the data provided in this document.
No patent liability is assumed by QUARTECH CORPORATION with respect to the use of circuits, information,
equipment, or software described in this document.
This document is subject to change without notice.

Table Of Contents
Section 1: Introduction................................................ 1
What are Screens & Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Static and Scrolling Text Fields.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
NumericDataField....................................... 2
RecipeField. ........................................... 4
BitStatusFields. ........................................ 6
Multi-State Text Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Copy Parameters Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
IfTriggerField.......................................... 10
Section 2: Loading Driver Firmware.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Section 3: LoadingProjectFiles........................................ 13
Section 4: ScreenTriggering.......................................... 15
Section 5: KeyDefinitions. ........................................... 17
Select, Enter, & Cancel keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
-/Next&./Prevkeys....................................... 18
Lockkey................................................ 18
FunctionKeys. .......................................... 18
Pushbutton, Selector, & Screen Trigger Switch. . . . . . . . . . . . . . . . 18
BitStatusSwitch........................................ 19
JogButtonSwitch....................................... 20
Section 6: Drive Fault Monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Section 7: SecurityLocks............................................. 22
Section 8: LCD Contrast Adjustment (serial number prior to 55134). . . . . . . . . . . . 24
Appendix A: Electrical/Mechanical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
DIP Switch assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2136 File Download Cable.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2161Communication Cables (RS-232). . . . . . . . . . . . . . . . . . . . . . . . 28
2162Communication Cables (RS-485 Single Drive). . . . . . . . . . . . . . 29
2167Communication Cables (RS-485 Multiple Drives). . . . . . . . . . . . 30
2174Communication Cables (RS-232 Multiplexer). . . . . . . . . . . . . . . 31
Appendix B: Error & Warning Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Other available Communication Drivers:
Allen-Bradley SLC500, DH-485. Allen-Bradley SLC500, DF1. (MicroLogix PLC)
Allen-Bradley PLC-5, DF1. Allen-Bradley PLC-2
Fuji Electric N Series GE Fanuc Series 90
Mitsubishi FX Series Modicon Modbus.
Omron Host Link Idec, Micro3 & Micro3C
Toshiba EX100 Protocol Toshiba T1-Series Computer Link
Yaskawa MP930 Memobus Generic ASCII, with definable string format.
Slave ASCII Terminal Allen-Bradley Ultra 100/200 Drive
PM2800U3K Revision 4

Section 1: Introduction Page 1
The 2800 compact operator interface is a programmable device designed for use with programmable logic controllers,
ASCII devices, digital drives and motion controllers. This manual describes the features and operation specific to the
Allen-Bradley ULTRA 3000 Digital Servo Drives.
The 2800 communicates with the ULTRA Drive
using the Host Command Protocol. A list of all the
supported commands can be found in the
configuration software help files.
When configured for RS-485, the 2800 can
communicate with multiple Drives..
The 2800 OIT is fully programmable using free
ScreenMaker 2000K Windows™ based off-line
software. The project designer can customize
each screen to fit the current application. Text
can be combined with up to eight data fields
associated with parameters located internal to the
drive. Numeric Data fields can be defined as read
only or read /write with high limits, low limits and
scaling.
The Next and Prev keys allow the operator to navigate through screens in an order predetermined by the project
designer. The numeric keypad allows the user to easily modify integer and floating point values. The four function keys
can be redefined to function differently on every screen. The function keys can be custom labeled with a slip in legend
tag, easily created using LegendMaker software. The 2800 utilizes Flash nonvolatile memory, the threat of losing the
customized screens (up to 500) due to a power loss, dead battery, etc., is nonexistent.
We recommend downloading and installing the free ScreenMaker 2000K software that includes a sample project. The
sample project demonstrates indexing control, velocity control, and Jog mode.
What are Screens & Fields?
The 2800 is customized for a particular application by creating screens. A screen is similar to a canned message and
may include variable information from the Drive. A group of text or a variable is referred to as a field. Each field has
an assigned size and position within a screen. Several field types are available and may be used in any combination
to produce a screen. Here is a brief description of the fields currently available.
Static Text This field allows fixed character strings to be displayed within a screen. The field size and
position are user defined.
Scrolling Text This field allows fixed character strings to scroll right to left within a defined window.
Horizontal The window size and position are user defined.
Scrolling Text This field allows lines of fixed character strings to scroll bottom to top within a defined
Vertical window The window size and position are user defined.
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Section 1: Introduction Page 2
Numeric Data Field
This field will display numeric values associated with drive parameters. The parameter from which data will be retrieved
is specified when the field is created. Signed and unsigned integer values plus floating point formats are supported.
Modification to the value may be enabled or disabled. Individual data value limits are also set for each Numeric Data
field created. If enabled, values are entered by first moving the focus to this field by pressing the Select key, a new
value is then keyed in and the Enter key pressed.
Note:
If a Scale value other than one is assigned with an integer type variable such as Index Distance, please be aware
of the following:
If a decimal value is specified as shown here (Dbl.Decimal.3), then the entry and display of the variable is treated
as a floating point value, however, the limit values remain in the native integer format and in this example would
indicate maximum and minimum counts.
Example: Assume 8000 counts (1 revolution) equals 0.01 inches of travel.
The desired range of travel is from, -1.25 inches to six inches.
Scale: 0.01 Divided by 8,000 equals 0.00000125 (or 1.25e-6)
Maximum Entry Value: 6.00 / 0.00000125 = 4,800,000
Minimum Entry Value: -1.25 / 0.00000125 = -1,000,000
The decimal point in the Max and Min Entry Values is a place holder only and is not numerically significant to the
entered limit value. If it is not placed correctly an integrity check error may occur.
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Section 1: Introduction Page 3
The Negate check box will force a positive entered value to be converted to a negative value before it is written to the
Ultra Drive. Likewise, when a negative value is read from the Ultra Drive it will be converted to a positive number
before it is displayed. The function would be used only when the variable must always be negative. For example, if
the motor must always turn in the negative direction, the operator would not have to remember to press the negative
key when entering a speed, distance, or position.
Scaling Example: Since the drive returns the current motor velocity as a number of counts per second we can use
a scale value to convert the displayed value to revolutions per minute (RPM).
Scale Value = 1 / ( Counts per Revolution / 60 )
Scale Value = 1 / ( 8,000 / 60 ) Assume encoder producing 8,000 counts per revolution.
Scale Value = 1 / 133.33333
Scale Value = 0.0075 or 7.5e-3 This is the value into the Scale box.
If the 2800 has received a motor velocity value of 200,000.
RPM = Count Value Received x Scale Value
RPM = 200,000 x 0.0075
RPM = 1500 This is the value displayed by the 2800
If the operator enters 750, the 2800 will write the value 100,000 to the Drive..
Raw Value = Entered value / Scale Value
Raw Value = 750 / 0.0075
Raw Value = 100,000 This is the value written to the Ultra Drive.
Velocity Scaling: convert from Counts / Second to Revolutions / Minute.
Scale value = 60 divided by encoder pulses per revolution.
Accel/Decel Scaling: convert from Counts / Second / Second to Revolutions / Second / Second
Scale value = one divided by encoder pulses per revolution.
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Section 1: Introduction Page 4
Recipe Field
This field appears as fixed text within a screen. The field can be used in a two different ways.
As an Increment/Decrement Function:
When the field is created a parameter, Increment/Decrement value, and limit value are specified in addition to the field
text. If the Usage is set to Increase value then moving the focus, via the Select key, to this field and pressing the Enter
key will cause the increment value to be added to the data value currently read from the Ultra Drive. If the addition of
the two values exceeds the limit value then a warning message is displayed and the variable in the Ultra Drive is left
unchanged. Focus in not automatically removed from the field so that the additional increments may be executed.
Focus is removed by pressing either the Cancel or Select key. If the Usage is set to Decrease value then operation
is identical except that the decrement value is subtracted from the Ultra Drive data value.
As a Recipe List:
Up to twenty Ultra 3000 parameters can be assigned within the recipe field. Moving the focus, via the Select key, to
this field and pressing the Enter key will cause the data values to be written to the assigned addresses within the Ultra
Drive.
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Section 1: Introduction Page 5
The Execute drop down box allows the Recipe field to function in three different ways.
On Select is the default choice and causes the Recipe field to function like all other data
access fields. That is, The Select key is used to set focus to the field then the Enter key is
used to execute the specific field function When Increment or Decrement is used this is the
only valid execute method allowed.
When a screen is first opened the various field types that make up the screen go through an
initialization procedure. This procedure places associated text on the display and opens
connections to the communication driver if the field type is a data access field such as a
Recipe field.
If the Execute method selected for a Recipe field is an As LinkID then the initialization procedure and operation of the
field are changed. A connection to the communication driver is still made but the field text is not shown on the 2800
display and the field is not selectable using the Select key. A pointer to the Recipe is stored in the internal memory
of the 2800. To cause the Recipe items to be downloaded to the Ultra this Recipe fields Link ID must be included within
another Recipe. This is done using the Recipe Link ID parameter found within the Data Reference list. When the
Recipe Link ID parameter is encountered within an executing Recipe field the download process will continue using
the parameters included in the linked Recipe. The Recipe Link ID parameter should be the last parameter within a
recipe list and the assigned value must be that of a valid linked recipe. A linked Recipe field can include a Recipe Link
ID within its parameter list allowing multiple linked recipes to be executed.
If the Execute method selected for a Recipe field is On Open then a connection to the communication driver is made
but the field text is not shown on the 2800 display and the field is not selectable using the Select key. The field will
automatically be executed, downloading the parameter list to the Ultra drive.
Within ScreenMaker 2000K the text associated with a Recipe field is always shown, must be at least one character,
and may not be covered by another data access field.
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Section 1: Introduction Page 6
Bit Status Field
When creating this field a mask value and data value for a drive parameter are specified. Two character strings are
also typed in, one for the true state of the bits and one for the false state of the bit. One of the two character strings
will then be displayed depending on the status of the specified data value versus the mask value. If enabled this field
will also function as a bit modify. Moving the focus, via the Select key, to the field and pressing the Enter key will
cause the bits to be complimented by the 2800.
How the Bit Status determines which string to display:
Example 1:
Drive Value 0000 0000 0000 0001
AND with Mask Value 0000 0000 0000 0001
Results 0000 0000 0000 0001
The result is equal to the Data Value, therefore, the True Text [STOP] would be displayed on the 2800.
Example 2::
Drive Value 0000 0000 0000 0000
AND with Mask Value 0000 0000 0000 0001
Results 0000 0000 0000 0000
The result and Data Value are not equal, therefore, the False Text [START] would be displayed on the 2800.
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Section 1: Introduction Page 7
How the Bit Status field functions when Entry Allowed is selected:
Assume the results of example one, the field is currently displaying [STOP]. Further assume you use the Select key
on the 2800 to assign focus to this field then press the Enter key.
Drive Value 0000 0000 0000 0001
AND with compliment of Mask Value 1111 1111 1111 1110 Formula 1
write this value to the Drive 0000 0000 0000 0000
2800 reads Drive Value back 0000 0000 0000 0000
2800 ANDs it with Mask Value 0000 0000 0000 0001
Results 0000 0000 0000 0000
Result does not match Data Value so the field text will change to [START].
Lets try the opposite case. Assume the results of example two, the field is currently displaying [START]. You use
the Select key on the 2800 to assign focus to this field then press the Enter key.
Assumed PLC Value 0000 0000 0000 0000
AND with compliment of Mask Value 1111 1111 1111 1110 Formula 2
Results 0000 0000 0000 0000
OR with Data Value 0000 0000 0000 0001
write this value to the PLC 0000 0000 0000 0001
2800 reads PLC Value back 0000 0000 0000 0001
2800 ANDs it with Mask Value 0000 0000 0000 0001
Results 0000 0000 0000 0001
Result does match Data Value so the field text will change to [STOP].
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Section 1: Introduction Page 8
Multi-State Text Field
This field monitors an assigned parameter and displays text associated with a specified value. Up to 25 Value/Text
Strings can be specified. Entry is allowed with this field. After selecting this field the Next and Prev keys can be
used to scroll through the text strings, When the desired text string is displayed, the Enter key can be pressed
which will cause the value associated with the text string to be written to the Drive.
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Section 1: Introduction Page 9
Copy Parameters Field
The Copy Parameter field is used to transfer the value of one drive parameter to another. Up to twenty parameter
copies can exist within a single Copy Parameter field.
If Execute is set to On Select then the text that is entered when the field is created will be displayed on the 2800
when the screen is displayed. If Execute is set to Link ID then the text that is entered when the field is created will
never be displayed. When the Execute method is On Select, moving the focus, via the Select key, to this field
and pressing the Enter key will cause the copy operations to execute. When a screen is first opened the various
field types that make up the screen go through an initialization procedure. This procedure places associated text
on the display and opens connections to the communication driver if the field type is a data access field such as a
Copy Parameter field.
If the Execute method selected for a Copy Parameter field is an As LinkID then the initialization procedure and
operation of the field are changed. A connection to the communication driver is still made but the field text is not
shown on the 2800 display and the field is not selectable using the Select key. A pointer to the Copy list is stored
in the internal memory of the 2800. To cause the field to execute a reference to it must be included within a
Recipe. This is done using the Copy Link ID parameter found within the Data Reference list. When the Copy Link
ID parameter is encountered within an executing Recipe field the execution process is transferred to the copy
parameter firmware which executes the copy parameter list. Once completed the execution process is returned to
the Recipe field. Within ScreenMaker 2000K the text associated with a Copy Parameter field is always shown,
must be at least one character, and may not be covered by another data access field. Once an As LinkID Copy
Parameter field is initialized within a screen the pointer to it which is stored within the 2800 memory is maintained
until power is removed or another As LinkID Copy Parameter of the same number is initialized. Because of this
you can initialize an As LinkID Copy Parameter field in one screen then reference it via a Recipe field in a
different screen.
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Section 1: Introduction Page 10
If Trigger Field
The If Trigger field can be used to trigger a new screen based on the value of an assigned parameter.
The If Trigger field will continuously monitor the selected parameter. The value read for the assigned parameter
will be ANDed with the Mask Value then the selected Trigger If test will be ran using the limit values. If the test
produces a TRUE result then the assigned screen will be triggered in the assigned screen trigger.
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Section 2: Loading Driver Firmware Page 11
The 2800 is shipped from the factory with manufacturing test code installed. The first step in commissioning the
2800 is to load a communication driver into it. In this case the driver is for the Allen-Bradley ULTRA 3000 Digital
Servo Drives.
The Communication Driver File is loaded into the 2800 using ScreenMaker 2000K configuration software running
on your personal computer. If you have not yet created a screen application simply open a new project.
The 2800 is connected to the personal computer is via a communication cable (Quartech cable 2136-10). The
specifications for this cable can be found in Appendix A.
Prepare the computer for download by selecting the Communications heading, then
Download Communication Interface from the drop down menu. The following window will pop-up.
Before proceeding the 2800 must be prepared for the download. A four position DIP switch is accessible through
the rear cover of the 2800. Applying power to the 2800 with Dip Switch 4 set to the ON position (up), will placed it
into System File Download mode.
Pressing the Next key
The 2800 will first display: Then: will trigger this screen:
QUARTECH CORPORATION
2800 SERIES V1.00
UNIT SERIAL NUMBER
1234567890
SYSTEM FILE LOAD
PRESS THE NEXT KEY
TO PROCEED
SYSTEM FILE LOAD
WAITING FOR COMMAND
FROM COMPUTER
PM2800U3K Revision 4

Section 2: Loading Driver Firmware Page 12
The 2800 is now waiting for the computer to begin the download process. Clicking the Connect button will cause
the ScreenMaker software to query the attached product and validate its compatibility. The dialog below will
display if you forget to press the Next key on the 2800 or if a serial communication link can not be established.
The Firmware Download dialog will display if a successful serial link is established.
From this dialog select:
Start Download
Within a couple minutes the download will be complete.
The 2800 will again display:
WAITING FOR COMMAND
FROM COMPUTER
Remove power from the 2800 and set
DIP switch 4 to the OFF position (down).
The 2800 is now ready to accept your Project File. The next section describes the procedure.
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Section 3: Loading Project Files Page 13
The first step to commission a 2800 is to download Communication Driver Firmware into it. That process was
discussed in the prior section. The second step is to download a Project File. The file is downloaded to the 2800
using ScreenMaker 2000k configuration software running on your personal computer. To perform a download the
project must be open. From the menu bar choose Communication -> Send Project to 2800.
The dialog below will display allowing you to select the computer serial port that will be used.
PM2800U3K Revision 4

Section 3: Loading Project Files Page 14
PROJECT FILE LOAD
Next = PROCEED
Prev = RESTART
PROJECT FILE LOAD
WAITING FOR COMMAND
FROM COMPUTER
Before selecting Connect, insure the 2800 is connected to the computer and ready to receive the download. The
2800 is connected to the computer via serial communication cable, Quartech # 2136-10. To prepare the 2800 for
downloading the project file, hold down the Enter key while applying power to it.
The 2800 will display: Pressing the Next key will trigger this
screen:
Pressing the Prev key will cause the 2800 to
perform a warm boot which is just like re-powering.
If the 2800 is ready, then click the Connect button on the Connect to the 2800 dialog.
The following dialog will display.
If this is the initial download then insure the Send All Screens and Send Setup Information boxes are both
checked. To initiate the project download click on the Send button. The Send Status bar graph will indicate the
download progress. If a project is modified, ScreenMaker 2000K allows you to send individual screens. To send an
individual screen deselect the Send All Screens box and click on the screen you want to send. To select multiple
screens hold down the Ctrl key on your computer keyboard while you select screens.
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Section 4: Screen Triggering Page 15
Assuming the 2800 has been successfully configured with both a Driver Firmware and an a Project it is ready for
normal operation. An appropriate communication cable must be connected between the 2800 and ULTRA Driver.
The communication cable is available from Quartech and is shown in Appendix A. When power is applied the
2800 will enter the normal Run Mode.
Upon power-up the 2800 will display two informational screens. The first will indicate the part number and serial
number of the unit. The second will indicate the firmware type, firmware version level, and other programmed
information such as interface type and baud rate.
Here is an example of what you will see:
During the time while the 2800 is displaying the above screens it will also be attempting to trigger the lowest
screen number contained in its memory. It does this by writing the screen number into screen trigger word one.
The 2800 incorporates dual screen trigger words which allows two screens to be displayed at the same time.
what exactly are screen trigger words?
The screen trigger words are two internal addresses that hold the number of the screen currently triggered. During
normal operation the 2800 will monitor these two words to determine what screens should be displayed. Writing a
screen number into either of these words will cause the 2800 to display the appropriate screen. There are three
ways that a screen number can be written to a screen trigger word.
!The Next and Prev keys can write to a screen trigger word.
!A function key can be configured to write to a trigger word.
!A Data Set field can be configured to write to a trigger word.
But why use two trigger words?
The use of two triggers words is most effective when the trigger words are variable locations within the host
device, and the host device can write values into the triggers. This is not the case with the ULTRA 3000 driver,
however, some creative uses are possible.
When using more than one trigger word, care and planning is critical for success. Screen settings are important
when using two screen triggers because the settings can greatly affect the overall appearance of the 2800 display
when both triggers contain valid screen numbers.
Things to consider when using both screen trigger words.
When a screen is created using ScreenMaker 2000K several attributes will accompany the screen file. One of
these attributes determines the impact this screen will have on a screen being displayed from the other trigger
word. This attribute is the choice of one of three affects designated CLEAR, COVER, and OVERLAY.
CLEAR: If the screen is configured as clear, the entire 2800 display will be cleared before this screen is
displayed. This allows only one screen to appear on the display even if another screen was
previously opened from the other trigger word. The screen triggered by the other trigger word is not
destroyed, only hidden. If this new screen is closed by writing a zero to the trigger word, the screen
triggered by the other trigger word will reappear. (Kind of like Windows!)
QUARTECH CORPORATION
2800 SERIES
UNIT SERIAL NUMBER
1234567890
ALLEN-BRADLEY
ULTRA 3000
Ver 3.00
RS-232 38400bps
PM2800U3K Revision 4

Section 4: Screen Triggering Page 16
COVER: If the screen is configured as cover, it will be written on top of the screen previously triggered from
the other trigger word. Any parts of the display that are not used by the new screen will remain as
they were (again, kind of like Windows). Note however, that any variable fields that show through
from the previous screen cannot be accessed using the Select key. Only those variable fields on the
cover screen can be accessed.
OVERLAY: This is identical to COVER with one exception. Any variable fields that completely show through
from the other screen can also be accessed using the Select key.
Methods of Screen Triggering
Triggering screens to the 2800 display can be done in three different ways. The choice is up to the system
engineer developing the application. Any of these methods can be used alone or in any combination to create a
user friendly application.
Method 1: Screen Triggering via the Next and Prev keys
The Next and Prev keys can be used to link screens together in a predefined sequence. When a screen is
created using ScreenMaker 2000K software, two linking screen numbers can be attached, one to the Next key
and one to the Prev key.
!If a value of zero is set for the link number then the key will be ignored.
!If a legal screen number is set then pressing the key will cause the link number to be written to screen
Trigger Word 1 resulting in the screen being displayed.
Method 2: Screen Triggering via Data Set field
As discussed previously, the 2800 will continuously monitor both screen trigger words. The Data Set field can be
used to trigger a screen by placing the desired screen number into a trigger word. This allows for a simple way to
create menu screens.
Method 3: Screen Triggering via the Function keys
The four function keys can be independently configured within each screen to control a particular bit or word in the
Drive. Function keys can also be configured to act as a screen trigger that can control either or both screen trigger
words. When a configured function key is pressed it can:
!close a screen by writing a zero to the appropriate screen trigger word.
!open a new screen by writing the screen number to the appropriate screen trigger word.
!leave either screen trigger word unaffected.
Note: This feature is available only when the CLEAR or COVER screen attribute is selected. The function keys
are not operable when the OVERLAY screen attribute is selected.
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Section 5: Key Definitions Page 17
The 2800 keypad is made up of twenty tactile feedback keys used for navigation, control, and data entry.
Select Key
This key is used to select a variable field you want to modify or initiate action from. Within this document we refer
to this as “assigning focus”. Each time the Select key is pressed, a flashing block character will be displayed.
Depending on the field type, the character will be over the left most character (Drive Data) or over the entire field
(Data Set, Bit Status, Multi-State Text). As the Select key is pressed, focus will move from variable field to
variable field in the order that they were created. When the Select key is pressed and no additional variable fields
exist, the flashing cursor will move off screen.
If the Select key is pressed but no variable fields are
accessible the following message will momentarily display.
Enter Key
This key is used to initiate the writing of a value to the Drive.
!After modifying the value in a Drive Data field, the Enter key is pressed to initiate the writing of the new
value to the Drive. If writing is successful, focus will be removed from this field and the cursor will move
off screen.
!If a Data Set field has been selected, pressing the Enter key will write the assigned value to the Drive. If
writing is successful, focus will be removed from this field and the cursor will move off screen. If more
than one variable is specified the message “WRITING RECIPE DATA” will appear on the display until
the process is complete. If this field is configured as a Increment or Decrement type then after pressing
the Enter key the 2800 will first read the current value from the Drive, add or subtract the assigned value
then write the new value back to the Drive. The focus will remain on this field until the Select key
transfers it or the Cancel key is pressed..
!If a Bit status field has been selected, pressing the Enter key will toggle the state of the target bits in the
Drive which will also change the character string displayed. Focus will then be removed from the field
and the cursor will move off screen.
!If a Multi-State Text field has been selected, pressing the Enter key will write the value associated with
the text currently displayed to the Drive. The Next and Prev keys are used to scroll between choices
offered by the Multi-State Text field.
Cancel Key
This key is used exit or back out of an operation.
!If the Select key is being used to assign focus to a field, pressed the Cancel key will remove focus and
move the cursor off screen.
!If you are currently keying data into a field, pressing the Cancel key once will clear the entered field data
leaving only a cursor. You may begin entering a new value. Pressing the Cancel key twice in a row will
remove focus from the field.
NO ENTRY ALLOWED
IN THIS SCREEN
PM2800U3K Revision 4

Section 5: Key Definitions Page 18
-/Next & ./Prev Keys
These keys are dual function.
!If the Select key has not placed focus on any variable fields then the -/Next and ./Prev keys are used
for navigation. When a screen is created using ScreenMaker 2000K the system engineer has the option
to assign a next and previous screen linking number. Refer to Section 4: Methods of Screen Triggering,
to review this feature.
!If the Select key has been used to place focus on a Drive Data field then the minus and decimal point
function becomes active. Note however, these keys may be ignored if the field format does not support
negative or decimal numbers. If focus has been placed on a Multi-State Text field then these keys allows
scrolling through the field choices.
Numeric Keys 0 through 9
These keys are used exclusively for entering values into Drive Data fields or entering field lock codes.
Lock Key
This key is used to access the global lock code activation / deactivation screen. The 2800 provides fifteen lock
codes that can be specified during setup. When a Drive variable field is created using ScreenMaker 2000K, the
designer can assign one of the lock codes to the field. When an operator tries to access a locked field a screen will
pop up that prompts them for the lock code. Using the Lock key to deactivate a lock code allows the operator to
access any field that uses that lock code with out re-entering it each time the field is accessed. In other words, it
acts as a global lock override. Security locks are discussed in detail in Section 6.
Function Keys
These four keys are programmable function keys that can be re-defined for each screen created for the 2800.
There are four different configurations that can be made for a key, or a key may be disabled. Within each screen
the four keys may be configured differently. A function key can also be set to operate as a momentary pushbutton
switch or maintained pushbutton switch. The configuration options are as follows:
Pushbutton This configuration is used exclusively with write only Drive parameters such as.
Define Home Position Reset Drive Reset Faults Start Index
Pressing the key will cause the assign function to be executed.
Selector Switch This configuration is used exclusively with the dual state variables such as: Drive Enable
Pressing the key will toggle the variable between the “1" and “0" state
Screen Trigger This configuration allows the key to function as a screen trigger. Unlike the Next and Prev
keys, this screen trigger can write to either Screen Trigger Word or both at the same time.
For more information refer to Section 4, screen trigger method three.
PM2800U3K Revision 4