Red Lion Controls LGPM Panel Instrument User Manual

— THE LEGEND PLUS MULTI-PRESET—
MODEL LGPM INSTRUCTION MANUAL
INTRODUCTION
The Legend Plus Multi-Preset unit (LGPM) is another unit in our
multi-purpose series of industrial control products that is
Jield-programmable for solving various applications. This series of
products is built around the concept that the end user has the
capability to program different indication and control requirements.
The Legend Plus which you have purchased, has the same high
quality workmanship and advanced technological capabilities that
have made Red Lion Controls the leader in today’s industrial market.
Red Lion Controls has a complete line of industrial indication and
control equipment, and we look forward to serving you now and in the
future,
CE
CAUTION: Read complete instructions prior to CAUTION: Risk of electric shock.
installation and operation of the unit.
GENERAL DESCRIPTION . .
A) Block Diagram .......
B) Safety Summary . .....
C) Basic Operation .....
D) Messages . .........
E) Overflow ..........
F) Peak and Valley . . . . ..
G) Normal Operating Mode . .
H} Keypad Description . . . .
1. Keypad Functions . . . .
TABLE OF CONTENTS
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- PROGRAMMING GENERAL DESCRIPTION. ....
A) Program Presets & Counter Load Module ........ LL 1111111
B) Program Scale Factors Module . . . . . LL LR LL ALL RE
PROGRAMMING MENUS _ .
A) Program Scaling Module .
1. Count Scale Factor . . .
2. Rate Scale Factor . . .
3. Count Scale Multipliers
4. Rate Scale Multipliers
5. Rate Conversion Factor
6. Decimal Point . . . . . .
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7. Change Count w/Scale Factor... . . aa 1110
В) Program Rate Module . . .
1. Minimum & Maximum Update Time . . . . . a
C) Program Counter Module .
1. Count Modes .. . . ..
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IH. PROGRAMMING MENUS (Cont’d)
TABLE OF CONTENTS (Cont'd)
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D) Program User Module —....... aaa aaa
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No Mode 2.
. Maintained Reset aaa
Momentary Reset... 4 LL LL LL LL A A A NL LR A A LL AL LL LL LIL LL 1
Reset Outputs .. .. 1.114041 aaa
. Set Qutputs LL 4 LL LL LL LL LL A LL LL LA LL RL LL LL LL 1110
. View/Freeze Display .....1 211111 LL LL LL LL LL LL LL LL LL LL LL LL LL LL 111111111110
. Change Display .... 1111214 LL LL A LA LL LL LL LL A LL LL LA LL LL RL LL LIL LL 11111110
Request Message . LL LA LL LL LL LL LL LL LL LL LL LL 11100
. Clear Message ..... 1111211 LL LL LL LL LL LA LL LL LL LL LL RL LL LL RL 111110
. Skip Preset .... 11212114 LL 4 1 LL LL LL LL LL LL LL LR NL LL LL LL LL 111111111110
. Counter Load .. .... 22124124 4 4 LA LL LA LL LL LL LL LL ALL LS
. Print Request ........ LL LV A LL LL LL LL LL LL LL LL LL LL LL LL LL 1111111
. Program Disable .. 1.112201 124 LL LL LL LL LL LL LL LL LL A LL LL LL LL RE
15. Inhibit Count
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. Rate Output On/Off Delay ......... aaa,
. Output End (Reset) Modes ...... 21111 LL LL LL a
. Output Power Up State ........ aaa 1111110
. Reset Output with Count ©. aaa
Request Message 00000 aaa a 1 120
Program Displays Module ....2 22412 LL LA 1 LL LL LL LL LL LL LL LL LL LL LL RL
1.Displays 110 4 © © © oo 1110
2.Scroll Speed © LL aaa aaa но
3. Display Intensity _....... aaa
4. Custom Display Line ‚N
5. Program Mnemonic ©. ©. LL A LL ALL LL A LA LL LL LL LL RL ALL 1 110
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TABLE OF CONTENTS (Cont'd)
Il. PROGRAMMING MENUS (Cont'd)
G) Program Message
. Message Tyne
Message Text «oo aaa
. ASCII Table of Extended Characters
. ASCII Table of Standard Characters
. Message Priority
. Blinking Message
CMURIDIEX aaa aaa
. Maintained/Momentary Message Requests
. Message Cancellation
10. Message Time
11. Message Color © ©. aaa aaa
H) Program Communication Port Module
1. Baud Rate ...... A LL LL LL LL 1 LL LL LL LL LL LL LL 11111110
2. Parity/Number of Data Bits
3. Unit Address .. .. 1222110221 LL LL LL LA LL LL LL LL LL LL LL LL LL LL LL ALL 1111
4. Serial Transmit Delay 2... 1211 LL 4 LL LL LL LL LL LL LL A A LL NL LL A RL LL LL LL LL 11111 LS
I} Program Print Options Module
1. Mnemonics
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3. Transmit Message 40
J) Program Options Module
. Operator Access
. Preset Tracking . ...... a
. Programmable Code Value
. User/Factory Settings
. Factory Settings Chart
. User Settings Chart
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-3-
TABLE OF CONTENTS (Cont'd)
Ce ee ee ee aa ea aaa 42-51
E aaa aaa aa ea aa ana na 42-43
1. installing Software. . ...... aa ванне 42
2. Using Software .... 122040144114 LL LL A LL A NL LL ALL LL LL LL LL LL RE 42
B) Communication Format ......1 44110111 aaa 43
C) Sending Commands and Data .....1 114111 LL LL LL LL LL LL LL LL LL LL LL LL 111111 E 43-45
D) Receiving Data .... 1.211114 LL Le AL LL LL LL LL LL LL LL LL LL LL LL LL 46
E} Terminal Emulation Program ... 1.122011 111 LL LL LL LL LL LL LL LL LL LL LILI 11110 47
F) Serial Connections .......... 1111 LL LL LL LL LL LA LL LL LL LL LIL 1111 48-50
1. Connecting to an REC Printer .. 1.112114 1 101 LL LL LL LL LL LL LL LILI LL вены, 49
2. Connecting to a Host Computer LL 111111111110 50
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V. INSTALLATION & CONNECTIONS . . . . . . . aaa a 52-58
A) EMC Compliance Installation . . . . ©... oo a 53
B) Additional EMC Installation Guidelines
aaa aaa aaa 53-54
C) Wiring Connections ......... aaa 1111 54
1. A.C, Power Wiring ........ aaa 54
2. D.C. Power Wiring ........ LR LL LL LL LL LL 1111111111 54
D) Signal Wiring — ....... 0 04124 LL aaa aaa 55
1. Inputs ARB .... 4 4 1 4 4 AL LL LL LL LL LL LL LL LL LL LL LL LL 1 0 55
E} DIP Switch Set-up... Lo 4 LL LL LL LL LL LA LL LL ALL LL LL LL 111111111120 56
F) Various Sensor Output Connections ......2022 1101101 LL AL LL LL LL ALL LL LL LIL LL 1 10 57-58
VI. SPECIFICATIONS & DIMENSIONS . . . . LL LR 11111 59-60
VII. TROUBLESHOOTING . . . LL LIL LL 111 61-63
VIII. APPENDIX "A" - SCALING FOR COUNT INDICATION. .. 1... 11111 LL LL LL LL LL LL LL 11 64-66
IX. APPENDIX "B" - SCALING FOR RATE INDICATION . . . . A LL LL LL 1111111110 67-69
X. APPENDIX "C™ - APPLICATION | . A LL LL LL LL LL LL 1110 70-72
XI. APPENDIX "D" - ORDERING INFORMATION 1 LL LL LL LL 111111111110 73
Xli. APPENDIX "E" - FLOWCHART FOLD-OUT (Insert)
-4-
GENERAL DESCRIPTION
The Legend Plus Multi-Preset
Counter (LGPM) is a multi-input,
counting panel instrument that offers
the features and performance of a
multi-level preset counter and time
interval rate indicator. The LGPM
features six presets, which can be
assigned to either the rate or count
indicator.
The Legend Plus has advanced
features that allow the unit to be more
closely coupled to the application. The
unit features a 2 line by 8 character
alphanumeric display, allowing the
value mnemonics and programming
menus to be easily read. The unit is
available in single or dual color display
models. The four scroll-through
indication displays can be programmed
to show various parameters and to
automatically scroll. On dual color
models, each indication display can be
programmed for either color. The
mnemonics corresponding to the main
display values (RATE, PEAK,
VALLEY, COUNT), can be
individually programmed and modified
as desired. For example, the RATE
mnemonic can be reprogrammed to
display the word SPEED, so that when
the rate mnemonic is to be displayed, the
mnemonic SPEED 1s displayed instead.
Two custom display lines allow the
user to specify the number of digits of a
value to be displayed on a line, along
with any alphanumeric prefix or suffix.
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GENERAL DESCRIPTION (Contd)
This capability allows displays such as; "1000 RPM’, ’99999 Ft’, ’PRC
9999”, etc.
The Legend Plus also features messaging capabilities that can inform the
user of output actions or other events that occur in a system. Up to ten
messages can be programmed. Messages can be requested by an output
status change, User Input(s), or through serial communications. The
messages can be programmed for block or character scroll, to blink, time
out, and to alternately flash between message and indication display. On
dual color models the message can be programmed to be displayed in either
color. This capability is very useful in drawing the operator’s attention to
particular messages.
The program disable DIP switch, a code value, and an external User Input
selected for Program Disable can be utilized to provide multi-level
protection against unwanted changes to data values and unit configuration.
The Legend Plus features enhanced serial communications. The Serial
port can be configured for connection to RS-485 or RS-232 devices. It can
be used for data retrieval and for programming various data values.
Optional Legend Plus Programming software (SFLGP) for IBM®
compatible PC’s is available to program all the Legend Configuration
parameters, such as, messages, count modes, etc. The software allows unit
configurations to be created, uploaded, down-loaded, and saved to a file for
rapid programming of the Legend unit.
The six Programmable User Inputs can be configured to provide a variety
of functions. Four User Inputs are located on the upper rear terminal block.
The other two inputs are front panel function keys.
The User Inputs can be configured to provide functions such as:
Count Inhibit Reset
Message Request Counter Load
Message Cancellation Output Activation
View/Freeze Display Output Deactivation
Change Display Skip Presets (outputs)
Program Disable Print Request
The LGPM offers a choice of seven programmable counting modes for
use in applications requiring bidirectional, Anti-coincidence, and
Quadrature counting. The count inhibit function can be utilized with all of
these input response modes by programming User Input 4 for the Inhibit
Count function.
Input A accepts a signal for the Count and Rate displays. Input B accepts
a signal for the Count display or direction control. In the Anti-coincidence
mode, both inputs are monitored simultaneously, so that no counts are
missed, and the {inal count can be chosen as the sum or difference of the two
inputs.
Rate and Count displays have separate scaling and decimal point
placement, for readouts in different units. The Counter Load feature enables
the operator to modify the count value. This is useful when flawed material
has been counted and it is necessary to adjust the count value accordingly.
The rate operates in the time interval method (1/tau) to calculate the rate
value. This method insures high resolution at all input rates. Averaging can
be accomplished by programming the Minimum and Maximum Update Time
for the desired response. Extensive scaling capabilities allow practically
any reading at very slow input rates.
The construction of the LGPM unit is a lightweight, high impact plastic
case with a clear viewing window. The sealed front panel with the silicone
rubber keypad meets NEMA4X/IP65 specifications for wash-down and/or
dusty environments, when properly installed. Plug-in style terminal blocks
simplify installation and wiring changes.
SAFETY SUMMARY
All safety related regulations, local codes and instructions that appear in
the manual or on equipment must be observed to ensure personal safety and
to prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
Do not use this unit to directly command motors, valves, or other actuators
not equipped with safeguards. To do so, can be potentially harmful to
persons or equipment in the event of a fault to the unit.
BASIC OPERATION
The unit contains a counter that keeps track of the input pulse count. The
unit takes the actual number of pulses counted (internal count value) and
multiplies them by the Count Scale Factor and Count Scale Multiplier. This
results in the desired reading value for the Count display.
The Counter has three Reset Action modes associated with the display;
Reset to Zero (up-count modes), Reset to Preset (down-count modes), or
Reset to the Counter Load value. A Reset can be a manual reset, using a
programmable User Input, or it can be one of the seven programmable
Automatic Reset modes. Both the reset action and automatic reset modes
are programmed in the Program Counter Module.
The Counter displays the scaled number of pulses that have been entered.
When the count equals a Preset, the appropriate output will activate. The
count can be programmed to automatically
The signal at Input A is used for the Rate indicator. The rate indicator
uses a time interval method (1/tau) to calculate the rate value. The unit
counts on the negative edge of the input pulses. After the programmed
minimum update time elapses and the next negative edge occurs, the unit
saves the number of edges that occurred during the elapsed time. The
number of edges is multiplied by the Rate Scale Factor, Rate Scale
Multiplier, and the Rate Conversion l'actor to calculate the rate value.
Averaging can be accomplished by programming the Rate Minimum Update
Time for the desired response. Extensive scaling capabilities allow
practically any desired reading at very slow count rates.
The following 15 a Block Diagram overview of the basic operation.
reset.
During operation of the Legend Plus, after
internal scaling is complete, any digits
remaining to the right of the least significant
digit (LSD) of the display is examined by the RATE (PPS) |
unit. If this digit is equal to or greater than [| INDICATOR
0.5, the LSD of the display 1s rounded to the
next higher digit. Any number less than 0.5 — RESET
is ignored. During Reset to Preset modes of
operation, any remainder greater than 0.5
will cause the display to be rounded up. Due
to this rounding action, the output activation
may appear to be delayed. In actuality the
display may have rounded up or down, but
the internal count had not yet reached the INPUT A O- UP/ON CONTROL
preset value or zero. ADD /SUB
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MESSAGES
The Legend Plus features messaging capabilities that can inform the user
of output actions or other events that occur in a system. Up to ten messages
can be programmed. Messages can be requested by an output status change,
User Input(s), or through serial communications.
When a message is requested, the unit checks if there 1s a message already
on the display. If there are no messages on the display, the requested
message is displayed. A message on the display is replaced if, the requested
message has the same or higher priority. If the unit is not at the main display,
the unit stores one message request. If subsequent messages are requested
While not at the main display, the unit stores the last message requested, or
the highest priority message request. The stored message is redisplayed 2.5
seconds after the user returns to the main display.
if a message is displayed and the user presses the appropriate key to get
to the Preset, Scaling or Programming menu display, the displayed message
1s temporarily suspended. While the message is suspended the message
timer, if used, is also halted. The message is redisplayed 2.5 seconds after
the user returns to the main displays and the message timer resumes. If the
Up or Down arrow key is pressed while in the main display loop, the message
is also suspended, and the appropriate programmed display 1s shown. The
message 1s redisplayed 2.5 seconds after the last key press.
User Input Message Request Operation
Individual User Inputs can be programmed to activate any of the ten
messages. The messages can be maintained or momentary. Messages can
be assigned a priority from | to 8 (1 is highest). This assures that very
important messages are displayed first.
Binary Message Request Operation
Two, three or all four of the User Inputs can be configured to request
messages in a binary fashion. Messages 1 through 9 can be requested in this
manner. The binary state 0 (all binary inputs inactive) , is used to indicate
no message requested. During the scanning of the binary message request
inputs, if the Input state is the same as the last requested binary message no
change will occur. When an input change occurs, the unit requests the
message number corresponding to the state of the inputs. The inputs must
be stable for 100 msec (debounce time) for the message to be requested (See
Program User Module for more details). Changing the individual binary
message request input lines slowly will cause unwanted message requests,
tf several bits need to be changed. This would be noticeable on the display,
if a user were to utilize a thumbwheel switch to change messages.
Ouiput Message Request
Fach output can be individually programmed to request a specific
message when activated. The appropriate message will be requested
regardless of the method used to activate the output, i.e. User Input,
Count/preset processing, serial command, etc.
Note: The Output must be active for a minimum of 50 msec. for the request to
be seen.
Message Cancellation
Messages can be cancelled automatically, or manually. When cancelled,
messages programmed for maintained request, will be re-requested if the
display 1s available and the request source is still active. A request for a
message of the same or higher priority will cancel the current message on
the display. Messages can also be cancelled by a User Input programmed
for Cancel Message or via the serial port. The three programmable
cancellation options are Latched, Timed, and Til End. (See Program User
Message Cancellation for details).
OVERFLOW INDICATION
The unit flashes the word "OVERFLOW" (or assigned mnemonic) in the
appropriate display when an overflow condition occurs. An overflow occurs
if the capacity of the display (6-digits) is exceeded or if the internal count
capacity (9-digits) is exceeded. The use of an extremely small Scale
Multiplier and Scale Factor value can cause the internal count capacity to
overflow before the displayed value overflows.
For example, if a Scale Factor of 0.0001 and a Scale Multiplier of 0.001
is used, for every 10,000,000 count edges received, the display increments
by 1. Before the display reaches 215, the internal counter overflows. When
the capacity of the display is exceeded, the count value 1s maintained and is
valid. If the internal count capacity is exceeded, the count value is no longer
valid.
Use of a Scale Factor larger than can cause the count display to
overflow before 999,999 internal counts are accumulated. The use of a Rate
Scale Factor, Scale Multiplier, and Rate Conversion Factor larger than "17
can cause the rate display to be in an overflow condition.
The counters should not be allowed to operate in an overflow condition.
As soon as, or before the counters overflow, the information should be
recorded and the counters reset.
1“ |"
PEAK & VALLEY
The Peak and Valley registers record the lowest (Valley) and the highest
(Peak) readings of the rate input signal. These values are viewed in the
indication display loop and are updated automatically. A User Input can be
programmed to reset the values to the current rate value individually or by
sending the proper command via the serial communication port. The Peak
and Valley values are NOT retained when power to the unit is removed.
NORMAL OPERATING MODE
In the normal operating mode, the up, down, left, and right arrow keys are
used to scroll through the main display loop. In the main display loop, the
four indication displays, scale factors, and program mode modules are
viewed, as shown at right. In the indication display loop, the up and down
arrow keys arce used to scroll to each display. The indication displays are
referenced as 1 (0 CNT/0 CPS), 2 (PEAK), 3 (VALLEY), and 4 (COUNT),
which are the factory default settings. The indication displays can be
programmed to show other parameters and automatically scroll (See
Program Displays Module). The last indication display that was viewed at
power down, is the one viewed on power up.
The Presets and Counter Load values are accessed from any of the
indication displays or from the programming Joop. The Count and Rate
scale factors are accessed from the Scale Factors display or when in the
programming loop from the Program Scaling module. In the Program Mode
display, the operator enters the programming loop to access all parameters
to configure the unit. Shown below is the Main Display | Loop.
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KEYPAD DESCRIPTION
The keypad has a key array of two rows by four
columns. Some keys have a dual function. For
a description of key functions during text and
mnemonics editing. see Text Editing in the
Program Message Module. The following is a
description of each key and its function during
programming and normal operation:
Fl -
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PRS
KEYPAD FUNCTIONS
Function key FI is a User Programmable Input. When the key is
pressed, the unit performs the appropriate function as programmed
in the "Program User Module".
Function key F2/RST is a User Programmable Input. When the key
is pressed, the unit performs the appropriate function, as
programmed in the "Program User Module”. The "RST" printing
on this key 1s used as a quick reference for the operator if the
function key is selected for a reset function.
- The PRS key accesses the Preset and Counter Load Module provided
these values are not programmed for ’ioc’k. If all values are
"locked. pressing the PRS key does nothing. Preset values that are
accessible (changeable), can be changed immediately. Pressing the
SEI.> key is no longer necessary to edit preset values. Within the
preset menu, pressing this key saves the value and advances the
display to the next available preset. Pressing the PRS key at the end
of the module exits the module and returns the user to the main
display loop.
The Left arrow/escape key scrolls to the left in the main display
loop. When programming a numerical value, it selects the digit to
the left. In a sub-menu, 1t exits to the next higher evel menu in the
loop. It 1s also used to exit the programming loop. When exiting
the programming loop, the unit stores all parameters in non-volatile
memory and returns to the last viewed indication display.
-10-
A
ENT
SEL> -
KEYPAD FUNCTIONS (Cont'd)
- The Up arrow key scrolls through the indication displays. In the
programming loop, this key can be used to scroll through the main
menus. When programming a numerical value, it increments
(decrements, 1.e., goes more positive, for negative values) at the
selected digit position. If the key 15 pushed and hehi, the value will
scroll (count up) automatically. After 5 counts, the unit enters fast
scroll mode. If the key remains pushed. a digit shift occurs every
one hundred counts until the maximum value or zero (for negative
presets) is reached. When the digit shift occurs, the previously
scrolling digit goes to zero. When zero is reached (for negative
values), the display holds at zero. To go positive, the key must be
released and pushed again.
The Down arrow key scrolls through the indication displays. In the
programming loop, it scrolls through the main menus and sub
menus. When programming a numerical value, 1t decrements
(increments or goes more negative, for negative values) at the
selected digit position. if the key is pushed and held, the value will
auto scroll (count down automatically). After 5 counts, the unit
enters fast scroll mode. Uf the key remains pushed, a digit shift
occurs every one hundred counts untii zere is reached. When the
digit shift occurs, the previously scrothng digit goes to zero, When
zero 1s reached. the display holds at zero. To go negative, the key
must be released and pushed again.
- The Enter key enters the programming loop. when "Program Mode”
1s displayed from the main display loop. When "Scale Factors” is
displayed, pressing Enter allows access to the scale factors. This
key 1s also used to save changes to data values. If the data value is
a preset or counter load value, the value 1s entered and the preset
menu is exited. For all other numeric data values (i.e., Output time,
Rate update times, etc.), the value 1s entered and the value edit
mode 1s exited. The value is still viewed in the display, but with no
digits flashing.
The Select/Right arrow key scrolls right in the main display loop.
When programming a numerical value, it selects the digit to the
right. In a sub-menu loop, it is used lo go to the next lower level
and eventually Into an edit menu.
PROGRAM CODE NUMBER (PRO.CODE)
In two of the Program Disable states, it is necessary to enter the
PRO.CODE number before gaining access to the programming menus, The
default value for the code is "00", but should be programmed differently.
This helps prevent inadvertent entry into the unit programming menus (See
Program Options Module). The PRO.CODE prompt is viewed when
PROGRAM MODE is displayed and the enter key is pressed. At this time,
the Code Number must be entered using the arrow keys. If the wrong code
number is entered, the operator will NOT be able to enter the programming
loop and the unit returns to the main display loop.
FRONT PANEL ACCESSIBLE FUNCTIONS WITH PROGRAM
DISABLE
The Legend Plus has several ways to limit the programming of parameters
from the front panel keypad. The Operator Access section of the Program
Options Module is used with the Program Disable (PGM.DIS.) DIP switch
and a User Input selected for PGM.DIS to limit programming. To enter the
programming loop, a code number may need to be entered, depending on the
Program Disable setting. Only an external User Input can be selected for
Program Disable. The following list describes the possible program
disabling settings.
-11-
PGMDIS.| USER INPUT | PROGRAM ACTION
SWITCH TERMINAL | NUMBER | “ -
OFF |INACTIVE or Not ALL All programming enabled.
Programmed for
N _|PGMDIS | Ши
OFF ¡ACTIVE 0 to 98 | Operator Accessible Functions
Enabled, Programming Loop
| | _ В _ | Accessible via code number.
OFF ACTIVE 99 Operator Accessible Functions
Enabled, Programming Loop
" a a An Disabled. В О
ON INACTIVE or Not 0 to 98 [Operator Accessible Functions
Programmed for Enabled, Programming Loop
| PGM.DIS _ __— |Accessible via Code number.
ON INACTIVE or Not 99 Operator Accessible Functions
Programmed for Enabled, Programming Loop
.__|PGM.DIS ———. Disabled. — =
ON ACTIVE ALL Operator Accessible Functions
Disabled, Programming Loop
L o Disabled.
Note: If the User Input, set for PGM.DIS., is changed to another function, make
sure the User Input is not low (active). If the input is low when the function
is changed, the program disable function will remain active.
PROGRAMMING GENERAL DESCRIPTION
Programming of the Legend Plus is done through the front panel keypad, which allows
the user to enter into Main Menus, Sub-Menus, and Edit Menus. English language
prompts, flashing parameter values, and the front panel keypad aid the operator during
programming.
Although the unit has been programmed at the factory, the parameters generally have
to be changed to suit the desired application. The Main Menus are entered by pressing
“the enter (ENT) key when Program Mode is displayed. From Main Menus, the user can
enter a Sub-Menu where parameter values can be viewed. From the Sub-Menu, the
operator can advance into an Edit Menu, where a parameter value is changed and entered.
There are three types of Edit Menu’s:
1. A Choice Edit Menu allows the operator to scroll through options by repeatedly
pressing the down arrow key until the desired option is viewed. The option is selected
by pressing the ENT (enter) key, which returns the operator to the previous sub-menu.
The operator can exit the Edit Menu WITHOUT making a selection by pressing the
<ESC key, which returns the operator to the previous sub-menu.
. In a Numerical Value Edit Menu, the operator uses the left or right arrow key to select
a digit. The up and down arrow keys change the digit's value. The PRS key toggles
the left-most digit between a minus (-) and a zero for plus (+), for that numeric value.
When the appropriate numerical value is selected, it is entered by pressing the ENT
key, which returns the operator to the previous sub-menu.
3. A Text Edit Menu is where messages are programmed, and changes are made to
mnemonics and custom display lines. The up and down arrow keys are used to scroll
through characters. The function keys are used with the up and down arrow keys to
toggle between upper and lower case letters and to toggle between standard and
extended character sets. A complete listing of key functions in a Text Edit menu can
be found in the Program Message Module.
td
All parameter values changed in the Programming Loop are saved when exiting the
loop. The operator can exit the programming loop from any of the main menus by
pressing the <ESC key. When the <ESC key ts pressed, the display momentarily shows
"Please Wait...”, while the parameter values are saved in non-volatile memory. The unit
returns to the indication display that was last viewed. Shown are the Main Display Loop
and the Main Programming menus of the Multi- Preset Legend Plus (LGPM) unit.
All following flow charts have slanted characters to show parameters that are flashing
In the unit’s display and have programmable options.
-12-
МАМ DISPLAY LOOP
He —— оо
CNT SALE
FACTORS
PROGRAM
SCALING _
PROGRAM ° =>
RATE
\
PROCRAM | =>
-—-
COUNTER
\
PROGRAM >
USER
a PROGRAM ”
PRESETS PROGRAM sa
AND {OUTPUTS
COUNTER ua
LOAD | \
VAL UF or
a © PROGRAM =>
DISPLAY
Y
+ — ACTIVE ONLY WHEN THE PROGRAM PROGRAM | >
DISABLE FUNCIIUN 15 ENABLED. MESSAGE
1-4 — THE FOUR INDICATION DISPLAYS Vv
A se
——DASHEO LINE: Pci |=
MAIN DISPLAY POUR COMFORT
. DOTICD LINE: \
PROGRAMMING LOUP [PROGRAM | зн >
-.—.. a
{PRINT OF Г
\
PROGRAM | 50.>
[OPTIONS
PY
PROGRAM PRESETS & COUNTER LOAD MODULE
The Preset and Counter Load values are accessed from any of the
indication displays, or from any of the main menus in the programming loop,
by pressing the PRS key. The top line indicates which display the preset is
assigned to. The bottom line indicates which preset is viewed and the
programmed value. The following flowchart shows only the Preset and
Counter Load portion:
<Fsc 1 <fse
о CNT SCALE E PROGRAM” _
O CPS HAC TORS | MODE
1 FA ST ">
vi
PROGRAMMADEL OPTIONS:
qe
a ENT
Em -99999 TO 999999
- ENT
[а ооо -99999 10 999999
7 001002
Count | Im
53000300! 7 | 29999 ТО 999999
1-4 INDICATION .
DISPLAYS Na ENT
SE = | 99999 ТО 999999
“ - WHEN VAUE IS À Pers |
ACCESSIBLE, LEFT .
& RIGHT ARROW KEYS — Lo 4 ‘a
SELECT DIGITS, AND COUNT u 99999 10 999999
UP & DOWN ARROW Ps 000500
KEYS CHANGE THE sl
DIGITS VALUE.
v
soo] —99999 TO 999999
PRS
+
A
EES -99999 To 999999
PRS.
_— — -——— — cee ull
-13-
PRESET VALUES
Preset values P1 through P6 can activate solid state outputs 01-SNK
through 06-SNK respectively, when the assigned display equals the preset
value. Presets Pl to P6 can be assigned to the count or rate displays. The
output action (timed, latched, or boundary) is programmed in the Program
Outputs Module. The preset values may range from -99,999 to 999 999,
The Count Scale Factor, has a direct effect on the preset value entered,
when the output (preset) is assigned to a counter display. For a Scale Factor
Value greater than "1", the preset value should be a whole number multiple
of the Scale Factor value. Ifitis not, the unit automatically adjusts the preset
value up or down to force it to be evenly divisible by the Scale Factor.
COUNTER LOAD VALUE
The Counter Load (CL) value allows the user to start the count value from
a value other than zero or a preset. The reset mode is set in the Program
Counter Module. The Counter Load value can be programmed from -99,999
to 999,999,
PROGRAM SCALE FACTORS MODULE
The Scale Factors are accessed from the Scale Factors Module in the main
display loop or from the Scaling Module in the programming loop. Since the
Scale Factors may need to be changed periodically, this module allows the
operator to change a Scale Factor value WITHOUT entering the
programming loop. The following flowchart shows only the Scale Factor
portion:
<ESC
CNT me A | o
FACTORS MODE
SEL > EE — SEL> ana am 00
NT
A
Е
SEL>
PROGRAMMABLE OPTIONS:
+
2 TA a
vi _ <ESC | seL>
COUNT SF
у --— COUNT SF
3 1.0000 1.0000 40001 70 5.9999
NV AED a
RATE SF |. RATE SF 0.0001 10 5.9999
1.0000 hee 1.0000
0000 4 1.0001
V
« -- LEFT & RIGHT ARROW KF YS 10
SELECT DIGIT, UP & DOWN Ki YS
TO CHANGE THE DIGINS VALUE.
1 4 INDICATION DISPIAYS
COUNT SCALE FACTOR
The number of pulses counted (internal count value) is multiplied by the
Count Scale Factor value and the Scale Multiplier to obtain the desired
Count display value. A Count Scale Factor Value of 1.0000 and a Scale
Multiplier of “1” results in the display of the actual number of input pulses
that were counted. The Count Scale Factor value is used for converting the
number of pulses counted to the required units of measure for the display.
This includes conversion from different units of measure (i.e feet to meters,
etc.). The Count Scale Factor Value can range from 0.0001 to 5.9999. Itis
important to note that the precision of a counter application cannot be
improved by using a Scale Factor greater than "1". To accomplish greater
precision, more pulse information must be generated per measuring unit.
For details, refer to Scaling for Count Indication in the Appendix.
RATE SCALE FACTOR
The internal rate value (pulses per second) is multiplied by the Rate Scale
Factor, Rate Scale Multiplier, and Rate Conversion Factor values, to obtain
the desired rate display value. The Rate Scale Factor value is used for
converting the internal rate to the required units of measure for the display.
This includes conversion from different units of measure (i.e feet to meters,
etc.). The Rate Scale Factor Values range from 0.0001 to 5.9999. Due to
the way the rate is calculated. high resolution and accuracy are achieved at
all input rates. For details, refer to Scaling for Rate Indication in the
Appendix.
PROGRAMMING MENUS
The programming menus are accessed when "Program Mode" is displayed
in the main display loop. All parameter values can be accessed from the
Main Programming Menus. Accessibility to the programming menus
depends on the Program Disable Function setting (See Front Panel
Accessible Functions with Program Disable) and could require a Program
Code number to enter the programming menus.
In the programming menus, pressing the up or down arrow key scrolls
through the main menus. From the Main Menu, a sub-menu is accessed by
pressing the SEL> key. In a sub-menu, the operator can view the parameter
values that are currently selected. To change a parameter value, the edit
menu is accessed by pressing the SEL> key (See Programming General
Description section).
The Preset and Counter Load module can be accessed from any Main
Programming Menu by pressing the PRS key. When exiting the preset and
counter load module, the unit returns to the last main menu that was viewed.
When all parameter changes have been made, the operator can exit the
programming loop, from any main menu, by pressing the <ESC key. Exiting
saves all parameter values and returns the unit to the last indication display
that was viewed. Shown are all of the main programming menus:
-15-
4
MAIN DISPLAY LOOP
a
АБ o
* — ACTIVE ONLY WHEN THE PROGRAM
DISABLE FUNCTION 15 ENABLED.
1-4 — THE FOUR INDICATION DISPLAYS
-—DASHED 1INE:
MAIN DISPLAY LOOP
-- DOTTED LINE:
PRUGRAMMING EDOP
PROGRAM
PRESETS
AND
COUNTER
LOAD
VAI UE
SCALE
FACTORS
pct |
В
|
|
|
|
|
|
|
|
E use). )
MOI
Ser no SEL»
ENT *
PRO. o]
[o AM | =>
ASCAUNG_
Sti»
В
HATE
PROGRAM | Stl >
COUNTER
| v
PROGRAM se >
USER _
a |
PROGRAM | >.
MESSAGE
Y
PROGRAM
COM.PORT
PROGRAM
PRINT 0
PROGRAM =>
OPTIONS _
=>
. —
PROGRAM SCALING
MODULE
In the scaling module, the Count and Rate Scale Factors, scale multipliers,
rate conversion factor, an
d decimal points are accessed. The following
flowchart shows only the Scaling portion:
MAIN
MENU
PRO.CODE
— 900
SUB EDIT
MENU MENU PROGRAMMAHLE OPTIONS:
PROGRAM COUNT si CUUNT * SF 0.0001 10 5.9999
SCALING _ - 1. 0000 ` ЩЕ 0000
e 2
nn У => _
PROGRAM RATE Sp RATE SF 0.0001 10 5.9999
RATE 1.0000 _— 1.0000
\ V su> _*
ENT. SCM CNT, SCM хо.
X0.00
= i X0.U01
— Pr — ENT TT
u
V => * 00
о DP ol pe DP E 0.00
« - DOWN ARROW 9.009
KEY 10 TOGGLE 0.0000
TROUGH OPTIONS. ENT 0.00000
++ — LLFT Ae RIGHT Vv E> xi
ARROW KEYS TU
UP & DOWN Ki YS X0.01
10 CHANGE THE 3 — Xlugo
DIGS VAI UE. X100
_ V_ => >
и, PLR E e: PER y SECOND
MINUTI
SECOND = —-|SECOND | Мо
У SEL > + U
RATE P RATE oe 0.00
0.000
0.0000
ENT 0.00000
У SEL
CHG ENT |- CHC CNT ns
U - YES < МЗ YES NU
-16-
COUNT SF (COUNT SCALE FACTOR)
The Count Scale Factor Value can range from 0.0001 to 5.9999. See
PROGRAM SCALE FACTORS MODULE for detailed description.
RATE SF (RATE SCALE FACTOR)
The Rate Scale Factor Value can range from 0.0001 to 5.9999, See
PROGRAM SCALE FACTORS MODULE for detailed description.
Note: Since the Count and Rate Scale Factors may need to be changed
periodically, they can also be accessed from the Scale Factors Module in the
main display loop.
CNT.SCM (COUNT SCALE MULTIPLIER)
There are four Count Scale Multipliers available; X 1, X 0.1, X 0.01, or
X 0.001 that change the count display value accordingly. The number of
pulses counted (internal count value) is multiplied by the scale multiplier
and the scale factor values to obtain the desired Count display.
Note: Use of a small scale multiplier with a small scale factor could cause the
internal count value to be exceeded before the 6-digit display value is
exceeded.
RATE SCM (RATE SCALE MULTIPLIER)
The Rate Scale Multiplier is used with the rate scale factor and rate
conversion factor to scale the rate display value for the proper units of
measure. The scale multipliers available are; X 1, X 0.1, X 0.01, X 1000,
X 100, or X 10.
RATE PER (RATE CONVERSION FACTOR)
The Rate Conversion Factor 1s used to display the rate value in the proper
time units of measure, per second (X1), per minute (X60), or per hour
(X3600) for the Rate display.
CNT. DP, RATE DP (DECIMAL POINT)
There are six Decimal Point locations available for the Rate and Count
displays. The decimal point position 1s programmed individually for each
display. The decimal point location programmed for the Rate display is the
same for the Peak and Valley displays.
CHG CNT W/SF (CHANGE COUNT VALUE WITH SCALE FACTOR)
When yes is selected for this option, any changes to the count scale factor
adjusts the currently displayed count value to reflect the new scale factor.
If this option is set to no, the internal count value ts modified so that the
count display value 1s not affected.
Example; The count scale factor of an LGPM with a count value of 36 1s
changed from 1.000 to 0.500. If the option is set to yes, the new count value
would be 18. If the option was selected as no, the count display value would
remain at 36.
-17-
PROGRAM RATE MODULE
MINIMUM AND MAXIMUM UPDATE TIME
The Minimum and Maximum Update Times are programmed in the Rate
module. The update times can range from 0.1 to 99.9 seconds. The
following flowchart shows only the Rate portion:
MAIN
MENU
PROGRAM
SCALING | SUB EDIT
MENU MENU PROGRAMMABLE OPTIONS:
ТУ => — —*
ho IL MIN. "О en | 01 To 99.9
RATE el 01.0
A | Fo | LL !
SEE >>
e e ue ml 0.1 10 99.9
—— 5.0
The Rate value is calculated using the time measured between the first
and last pulse as the measurement period. The measurement period ends
when the minimum update time has expired, and the next negative edge
occurs. The number of pulses that occurred during the measurement period
are counted and multiplied by the rate scale factor, scale multiplier, and rate
conversion factor. The result is divided by the actual measurement period
to obtain the rate display value. If the unit does not receive a negative edge
within the period between the minimum update time and the maximum
update time from the start of the measurement period. the time period ends
and the rate display goes to zero. At very slow count rates the measurement
period 1s the actual period of one count cycle, as long as the input rate
frequency ts not longer than the maximum update time. The rate indicator
only uses the falling edge of the Input A signal.
Note: The minimum update time must be equal to or less than 65536 divided by
the maximum operating frequency (in Hz) or the internal rate counter will
overflow. For example: If the maximum operating frequency is 10 KHz, the
minimum update time must be less than 6.5 sec (65,535 + 10,000 = 6.5).
PROCRAM
COUNTER
V
+ — LEFT & HIGHT ARROW KEYS
10 SELECT DIGIT, UP & DOWN
KEYS TO CHANGE THE DIGITS VALUE.
-18-
BASIC TIMING [ DIAGRAMS FOR RATE OPERATION
START Of ONE COUNT CYCLE MEASUREMENT END OF
ME ASUREME.NT MEASUREMENT
PERIOD PERIOD
MEASUREMENT
PERIOD
|
|
MINIMUM MAXIMUM
UPDATE UPDATE
ПМЕ ПМЕ
START OF AVERAGE CYCLE MEASUREMENT END OF
ME ASUREMENT ME ASUREMENT
PERIOD PERIOD
ML ASURE MENT
N. PERIOD E
MINIMUM
UPDATE
TM
PROGRAM COUNTER MODULE
In the Counter Module, the count mode, reset action, and automatic reset
capability are selected. The following flowchart shows only the Counter
portion:
MAIN
MENU
SUB
EDIT
MENU MENU PROGRAMMABLE OPTIONS:
Ev У => SED
PROGRAM |--——-=[CNT.INPU CNT INPUT | Gripe ADD /SUE
COU NTER —_— СРО —_— CT+DIRXT QUAD X1 ADD /ADD
< _ < se QUAD X2
| ТУ > o
PROGRAM RESET RESI Do o 5
USER 10 ZERO TO ZERO | 10 or 1
| У 1 V sn > DISABLED
— >= oun
AUTO RST AUTO RSI] UN END
DISABLED DISABLED oui?
QUT? UND
i | OUT1&2
OUT1&2E
COUNT MODES (CNT.INPUT)
There are seven available count modes. User Input 4 programmed for the
count Inhibit function can be used with any count mode. Input À signal is
used for the count and rate input. Input B is used in combination with Input
A for Count Control Direction, Quadrature counting, Anti-coincidence
Add/Subtract or Anti-coincidence Add/Add counting applications.
-19-
CT+DIRX1 (X1 COUNTING WITH DIRECTION)
The unit counts one count on every negative edge of the input signal at
Input A. The direction of the count is determined by the logic state of Input
B. A high level at Input B causes the unit to count in a positive direction.
A low level causes the unit to count in a negative direction. The rate display
is NOT affected by the logic state of Input B.
CT+DIBX2 (X2 COUNTING WITH DIRECTION)
The unit counts one count on every negative edge of the input signal and
one count on every positive edge of the input signal at Input A. In this mode,
the input signal is effectively doubled. The direction of the count is
determined by the logic state of Input B. A high level at Input B causes the
unit to count in a positive direction. A low level causes the unit to count in
a negative direction. The rate display is NOT affected by the state of Input
B.
QUAD X1 (QUADRATURE X1)
Quadrature counting modes are primarily used in positioning and
anti-jitter applications. This mode works due to the manner in which the
two incoming pulses are positioned relative to each other. The pulse signal
on Input B 1s shifted 90° away {rom the pulse signal at Input A. These two
signals are processed by the Legend Plus as follows:
Input A serves as the count and rate input, while Input B serves as the
quadrature input. For quadrature with single edge counting, the counter
counts in a positive direction when Input A is a negative going edge and
Input B is at a low level. The counter counts in a negative direction when
Input A is a positive going edge and Input B is ata low level. All transitions
on Input A are ignored when Input B is at a high level. These logic rules
provide the basis for anti-jitter operation which prevents false counts from
occurring due to back-lash, vibration, chatter, elc.
When two edge counting is used, the quadrature mode works the same as
with single edge counting when Input B is low. But when Input B is a high
level, counts at Input A are no longer ignored. Instead, the logic rules for
Input A are complemented, allowing both edges of Input A to be counted.
This doubles the effective resolution of the encoded input.
COUNT MODES (CNT.INPUT) (Cont'd)
QUAD X4 (QUADBATURE X4)
This mode takes the quadrature mode, with two edge counting, one step
further. In quadrature times 4, both Input A and Input B serve as the count
or quadrature input, depending on their state. In one instance, Input A serves
as the count input and Input B serves as the quadrature input. In another
instance, Input A is the quadrature input and Input B is the count input. This
enables each edge, positive and negative going, of both inputs, A and B, to
be counted. This results in a resolution four times greater than in the basic
quadrature X1 mode. As in the other modes, Input A is also used for the rate
input.
ADD/SUB (TWO INPUT ANTI/COINCIDENCE ADD/SUBTRACT)
This mode effectively separates count pulses that may simultaneously
appear at the two inputs. The Legend Plus processes the count pulses into
a string of time-separated pulses, so the internal counter does not miss any
count pulses. Input A serves as the add input (count increments) and Input
B serves as the subtract input (count decrements).
ADD/ADD (TWO INPUT ANTI/COINCIDENCE ADD/ADD)
This mode effectively sums count pulses that may simultaneously appear
at the two inputs. The Legend Plus processes the count pulses into a string
of time-separated pulses so the internal counter does not miss any count
pulses. Input A serves as an add input (count increments) and Input B serves
as an additional add input (count increments).
COUNTER RESET ACTION
The count display can be reset to Zero, Preset 2, or to the Counter Load
value. The display can be reset automatically or by a User Input. A User
Input can be programmed for a Maintained or Momentary reset (See Program
User Module for details). Automatic reset is covered in the next section.
RESET TO ZERO
The Counter Display value returns to Zero.
TO P2 (PRESET 2)
The Counter Display value returns to the Preset 2 value. Output 2 triggers
when the count reaches zero.
TO CT LD (COUNTER LOAD)
The Counter Display value returns to the Counter Load value.
-20-
COUNTER AUTOMATIC RESET (AUTO RST)
The Automatic reset mode can be enabled or disabled. The Counter
display automatically resets to the programmed reset action, when one of
the automatic reset modes is selected. A manual reset by a User Input causes
the count to reset regardless of the automatic reset mode. The following
choices are available:
QUT1 (Reset at Beginning Of Output 1)
The counter resets when the count equals the preset 1 value. Output 1 can
be timed or latched.
QUT1END (Reset at End Of Timed Output 1)
The counter resets after output 1 has timed out.
OUT? (Reset at Beginning Of Cutput 2)
The counter resets when the count equals the preset 2 value or zero (Reset
to P2). Output 2 can be timed or latched.
QUT2END (Reset at End Of Timed Output 2)
The counter resets after output 2 has timed out.
QUT1&2 (Reset at Beginning Of Output 1 or Quiput 2)
The counter resets when the count equals preset 1, preset 2,0r zero (reset
to P2). Outputs 1 and 2 can be Timed or Latched.
QUT 1&2E (Reset at End Of Timed Qutput 1 or Quiput 2)
The counter resets after output 1 or output 2 has timed out.
Notes:
1. For Auto Reset modes, when operating approximately 1/2 or greater than 1/2
of the maximum count rate, all other presets should not be within 1 to 3 counts
(positive or negative) of the value to which Auto Reset resets. In Reset to Zero
modes this would apply to any presets within 0 to 3 counts (positive or
negative) of zero. For Reset to Preset 2 or Counter Load modes, it would apply
to presets within 0 to 3 counts (positive or negative) of Preset 2 or Count Load
values.
2. For Auto Reset modes, no other count presets should be set to the same count
value at which Auto Reset occurs (Preset 2 or zero for Reset to Preset or
Counter Load mode). If they are, only the auto reset output will activate. If
the counter is set to Auto Reset at Out! &2, and other Presets are the same as
Preset 2(or zero for Reset to Preset mode), only Output 2 will activate.
MENU
PROGRAM USER MODULE MERU
There are six User Inputs; four COUNTER SUB SUB—EDIT EDIT
external User Inputs, and two front vas MENU => | MENU MENU
panel Function keys, which have PROGRAM |-—e BN. MSG. }— BIN. MSG.
са; USER REQ—NONE REQ—NONE
various programmable capabilities. ax y
An external] User Input 1s active У =>
. PROGRAM USR INP1 USR INP? BIN. MSG.
when tied to common. A front panel DUTPUTS NO MODE NO MODE SUB--EDIT EDIT REC— ZT
function key is active when pressed. v v ll Vv MENU MENU У’,
The options for each User Input are USR INF1 | > BIN. MSG.
the same, except as noted below: NO MODE WNT. RST re
- \ М «>
|. The two Function keys (F1 & ss OPTIONS & EIN SE
F2/RST) DO NOT have the NO MODE MOM. RST ARE THE SAME REG 48(T
i AS MNT RST SUB—EDIT EDIT
Program Disable (PGM.DIS.) у MENU MENU \
option. USR INP4 | # => «
Р o INHIBIT
2. Only User Input 4 has the Inhibit
Function. Y
USR FI .
The operator can select only one у
option for each User Input. The US Ea
operator may have lo enter a second ;
sub-menu for some options before У
entering the edit menu. The # Only User Input 4
flowchart at right shows only the may be programmed
User portion: for the Inhibit function.
*— DOWN ARROW KEY
PROGRAM USER MODULE (Cont'd)
BIN MSG REQ (Binary Message Request)
Two, three, or all four of the external User Inputs can be configured as
binary message request inputs. When configured as binary message request
inputs, the individual user input options are not displayed or available. The
inputs are active when pulled low (to common). In order for a message to
be requested. the inputs must remain stable for 100msec minimum. The
number of messages that can be requested varies with the mode (# of bits)
selected: for 2bit - 3 messages, 3bit - 7 messages, 4bit - 9 messages. Message
#0 cannot be requested, since binary state 0 is used to indicate no request.
Example: Ifthe Legend Plus is set up for 2 bit Binary Requests, User inputs
| and 2 do not appear in the Program User loop for programming.
Activating User Input 1 displays Message 1, and activating User Input 2
displays Message 2. Activating both together displays Message 3.
Changing the individual binary message request inputs slowly may
cause unwanted message requests, if several bits need to be changed.
| USER INPUT NUMBER (0=INACTIVE, 1=ACTIVE) | MESSAGE
j 4. | 3 2. 4 1 REQUESTED
Pa 0 o 0. | NONE |
A O 41 | MESSAGEM _
0 0 31 | 0 | MESSAGEM |
0 0. 1 | 1! MESSAGE#3 |
O a 0 | 0 | MESSAGE #4
O 4 0 __1 MESSAGE #5
0 00 4 | 0 | MESSAGEÑ6
8 [Af A PA | MESSAGE#7 |
1 e | e | e | MESSAGE#8 |
| 1 4 0) 0 | 1 | MESSAGE#9
USR.IN 1-4
NO MODE
If a User Input terminal or a Function key is activated, it 1s ignored.
MNT RST (Maintained reset)
Maintained reset has four selectable options. Any or all can be selected
in the edit menu by selecting YES or NO using the UP and DOWN arrow
keys. When using the maintained reset with a small preset value, the Inhibit
Count should be used with maintained reset, 1f the signal is present at the
input when the reset 1s activated.
RATE: Resets the measurement period. The Rate display value 1s the
last reading obtained before the reset. The next reading occurs
after the release of the reset and the expiration of the measurement
period. The Rate display does not reset to zero.
PEAK: Resets the Peak value to the current rate value.
VALLEY: Resets the Valley value to the current rate value.
COUNT: Resets the count value according to the programmed reset
action.
With Maintained reset, the value continuously resets as long as the User
Input or Function Key is active. Maintained reset 15 {evel sensitive and
overrides an automatic reset mode.
MOM RST (Momentary Reset)
Momentary reset has the same four selectable options us Maintamned
Resel. With Momentary reset. the value rescis when the User input or
Function Key 1s activated. The value starts updating (counting), even if the
User Input or I'uncuion Kev is sull acuve. Momentary reset 1s negative edge
sensitive and overrides an automatic reset mode.
RST OUT (Reset output)
The operator can select to have any or all of the Guiputs, 1 ikrough à,
reset. If the output is active. it resets Lo its Inactive state when the User Input
or Function Key is activated. This 1s a momentary reset.
Note: The Inactive State of an output cun be ON or OFF depending on the Phase
programmed in the Program Outputs Module.
SET OUT (Set output)
The operator can select to have any or all of the Outputs, | through 6, set.
If the output 1s inactive, it goes (sets) to its active state when the User Input
or Function Key 1s activated. If an output is programmed for a time delay,
the ouiput does NOT latch, but times out after the time delay value expires.
This 15 a momentary reset.
Note: The Active state of an output can be ON or OFF depending on the Phase
programmed in the Program Outputs Module.
VIEW DS1 (View/Freeze display)
When View Display 1s activated, the programmed indication display is
viewed and the numeric value for that display is held. This is 2 maintained
action. If the operator ts in the main display loop, the unit advances to the
indication display to be viewed. If more than one User Input is programmed
for this option, the input with the highest priority is the only one that holds
(freezes) the display and advances from the main display loop. Any other
User Input programmed only advances in the indication display loop. The
priority order is F2, F1, USR INP4, USR INP3, USR INP2, and USR INPI,
with F2 the highest priority. DS1 selects display 1, DS2 display 2, etc. The
values that are viewed/frozen on the display are determined by what is
selected in the Program Displays Module,
Activation of a User Input programmed for View Display will suspend
any displayed message for 2.5 seconds. The User Input has a higher priority
in this instance.
CHG DSP (Change display)
In the indication display loop, when a User Input is activated, the
indication display toggles to the next indication display. The change of
display is a momentary action.
Activation of a User Input programmed for Change Display will suspend
any displayed message for 2.5 seconds.
REQ MSG# (Request Message)
The selected message 1s requested when the User Input is activated. This
may be a maintained or momentary request, as selected in the Program
Message Module.
CLR MSG (Clear Message)
When the User Input is activated, the displayed message is cancelled.
This 1s a maintained action. While this input is held active, it prevents
messages from being requested. Only one User Input should be programmed
for the Clear Message function.
SKIP PRS (Skip Preset)
Up to 6 Presets can be set to be skipped using one User Input. When the
User Input is activated, the output does not activate/deactivate when the
count/rate output conditions are met. This includes an Automatic Reset at
Preset. The counter continues to count through the preset.
Note: An individual preset may be programmed to be skipped on only one User
-23-
Input. Other User Inputs may be programmed for skipping presets only if the
presets selected are not programmed to be skipped elsewhere.
CNT LD (Counter load)
The count value is set to the counter load value, regardless of the reset
action programmed in the Program Counter Module. The Counter I.oad is
a maintained action.
PRINT RQ (Print request)
When a User Input is activated, the unit transmits all the information
selected in the Print Options Module via the serial port. The print request
is a maintained action.
PGM.DIS. (Program Disable)
This option used with the Program Disable DIP switch can limit operator
access to programmable parameters (Refer to Operator Accessible Functions
With Program Disable section). Only one external User Input can be used
for this option. The program disable 1s a maintained action. If the User
Input, set for PGM.DIS., is changed to another function, make sure the User
Input is not low (active). If the input is low when the function is changed,
the program disable function is still active for the User Input.
INHIBIT COUNT
When active, the Inhibit Count function prevents pulses from being
counted on Inputs A & B. The Inhibit Count is a maintained action. The
rate input is not affected by the Inhibit function, and continues to indicate
the rate of the signal at Input A. This function is only available on User
Input 4.
PROGRAM OUTPUTS MODULE
Presets | through 6 can activate solid state Outputs ! through 6
respectively. All outputs can be assigned to the Count or Rate indication
display, or None. The preset values are automatically assigned to the
appropriate display. Outputs 3 through 6 have the same programmable
options as Output 1, except they do not have the Out End Mode option. A
manual reset, which requires the use of a User Input, overrides a timed
output. If boundary or fatched is selected for the output mode the time value
does not appear as an option. The following flowchart shows only the
Outputs portion:
PHASE
The positive (+) phase of an output indicates that when the display value
equals the preset value, the output turns on. When the output is reset it is
turned off. The negative (-) phase of an output indicates that when the
display value equals the preset value, the output turns off. The reset
condition of the output is the on state. When an output phase is changed, it
does not take effect until a manual reset or power down is performed.
OUTPUT MODES - TIMED, LATCHED, BOUNDARY or Hi/LO ACTING
TIMED
For timed output opération, when the display value equals the preset
value, the output activates for the time selected. After the time value
expires, the output returns to its inactive state. The output time can be
programmed from 0.01 to 99.99 seconds. An output may appear to be
latched if the time delay is longer than the time required for the counter to
reach the preset value. When an output is assigned to the rate display, the
output may appear to be latched if the output time delay is greater than the
minimum update time. The output deactivates when the rate drops below
the preset value and the output time expires.
LATCHED
An output selected for the Latched Mode activates when the display value
equals the preset value. The output stays active until it is manually reset by
a User Input selected for that function. When the unit is reset, the output
returns to ils inactive state.
BOUNDARY
An output selected for the Boundary mode (Hi Acting) will be active when
the display value is greater than or equal to the positive preset value. If the
-24-
display value ts less than the positive preset value, the output will be inactive
state. Tor negative preset values, the output will be active when the count
value is less (more negative) than the negative preset value. The output will
be inactive when the display value is greater (more positive) or equal to the
negative preset value. If an output is programmed for boundary, the Output
End (Reset) Modes will not be applicable and therefore will not appear in
the display.
HI/LO ACTING
This mode is used in conjunction with all Rate modes, and also with
Boundary count modes. A lo acting output would perform the Output action
when the count/rate is lower than the preset. A Hi acting output would
perform the Output action when the count/rate is higher than or equal to the
preset.
RATE OUTPUT ON/OFF DELAY
This option is available for the rate indicator and is used to prevent output
chatter. The output condition must be satisfied for a period of time longer
than the delay period for the output state to change. The minimum on or off
delay time allowed is 0.10 seconds. OFF/ON Delay is not available if output
is set for TIMED operation. If LATCHED mode is selected, the OFF DLY
options are not available.
NO DLY - No delay
ON DLY. - On Delay:
Prevents activation of output(s) for the amount of time
programmed.
OFF DLY. - Off Delay:
Prevenis deactivation of output(s) for the amount of time
programmed.
OF&ON.DLY - Off & On Delay:
This mode prevents output state change for specified delay
period when turning on or off.
MAIN
MENU
USER SUB
MENU
v a
PROGRAM i
DISPLAY OUTPUT 2
\ \
PROGRAM
OUTPUI 3
PROGRAM
OUTPUT 4
V
PROGRAM
OUTPUT 5 |
У
PROGRAM
OUTPUT 6
Vv
* — DOWN ARROW KEY TO
TOGGLE THROUGH
OPTIONS.
** — LEFT & RIGHT ARROW KEYS
TO SELECT DIGIT, UP & DOWN
KEYS TO CHANGE THE DIGITS
VALUE.
— > 00
PROGRAM PROGRAM
OUTPUTS OUTPUT 1 pe--——
y
2N0 SUB EDIT
MENU MENU
OUTPUT 1 To count
- va CNT то RAT
pt —
PHASE |
OUIPUI 1
+ PHASE
OUTPUT 1 OUTPUT 1 |
TIMED __ -— MED
OUTPUT 1 OUTPUT 1
HI ACT 1H ACT
OUTPUT 1 a == |
NO OLY. NO DLY _
У SEL»
rar 1 oh OUTPUT a
ONDL 1.00 = — UNDE 1.00
vous
У SEL >
OUTPUT 1 OUTPUT 1
TIME 0.10 TIME.OD 10
Y su> .
Te ST DISABLED
oon END г. UT1 END | GOUT?
DISABLED vo DISAI Fo @OUTZFND
pm 1 Lo OUTPUT 1 | SAVE GP ON
DFF@P. UP OFFOP. UP} ON @P.UP
Е \ SEL»
PUT 1 +—-- PUT 1 " RSI/C-EN
RST/C- EN ese EN] RS1/C-DS
V su
* Message #
0 TO 9
OUTPUT 1 OUTPUT |
REQMSGF- REUMSG#
— -25-
UTPUT 1 >. OUTPUT 1 |
ОО 1.00 pe — OFDL 1.00
PRHOCRAMMABLE GPTIONS:
+ PHASE
— PHASE
TIMED
BOUNDARY
LATCHED
HI ACT
LO ACT
NO DLY
ON DLY
OFF DIY
OF &ON.DLY
This option available {or
Rate outputs and Count,
Boundary Modes only.
This option available for Rate Latched
und Rate Boundry Modes.
Off Delay and Off & On Delay
applies only tu Roles Boundary Modes.
Dispiayed onty when On Delay or
Off & On Delay is selected.
Displayed only when Off Delay er
Off & On Delay Is selected.
*
0.01 70 99.99
Displayed only when Output
Mode Time is selected.
This option not displayed
for Boundory Modes.
= No Message
PROGRAM OUTPUTS MODULE (Cont'd)
OUTPUT END (RESET) MODES - OUT1 END, OUT2 END
The Output End modes operate with a timed or latched output mode. If
either output is sclected as boundary, the Output End modes are NOT
available. Output End Modes apply only to outputs I and 2 when assigned
to the Count display. If the output is set for TIMED. the output may
deactivate {from timing out or when the output end mode is reached,
whichever occurs first.
OUT1 END (OUTPUT 1)
(@ OU T2 (Output t End at Output 2 Start)
Output | rescis to its inactive state when output 2 becomes active.
This action occurs when the count equals the preset value or zero
{Reset to Preset Modes). This mode does not apply if the output
18 activated by a User Input programmed for Set Output.
WOUT2END (Output | End at Timed Qutput 2 tind)
Output I resets to ils inactive state when output 2's time delay
expires.
QUT2 END (O
(a; OÙ P1 (Output 2 End at Output | Start)
Wuipuf 2 resets to its inactive state when output ! becomes active,
This action occurs when the count equals the preset value or vero
{Reset to Preset Modes). This mode docs not apply if the output
ts activated by a User Input programmed for Sct Output.
@OUTLEND (Output 2 End at Timed Qutput | End)
Output 2 resets to its inactive state when output 1's time delay
expires.
[email protected], [email protected] OR [email protected] (OUTPUT POWER UP
STATE)
Each output can be programmed individually to have the state of the
output OFF at power up ([email protected]), saved at power down
([email protected]), or ON at power up ([email protected]). The save at power down
option restores the state of the output to what it was at power down when
power is restored. The save at power down option DOES NOT restore a
timed output to the active state if the output was active at power down. The
[email protected] and [email protected] option refers to the active state of the output,
which is determined by the Output Phase.
-26-
RST/C-EN OR DS (RESET OUTPUT WITH COUNT)
If Reset with Count is enabled, the output resets with a manual reset of
the Count or Rate display. If Reset with Count is Disabled, the output does
NOT reset when a manual reset is performed on the value to which the output
is assigned.
REQMSG#-- (REQUEST MESSAGE)
The selected message is requested when the output is activated. This may
be a maintained or momentary request. as selected in the Program Message
Module. A dash ”-" indicates that no message is to be requested. The output
must be active for a minimum of 50mscc for the request to be seen.
PROGRAM DISPLAY MODULE
DISPLAYS 1 to 4
The four indication displays are programmed individually. Each line of
each display can be configured to show a value mnemonic, a numeric value,
the output status, a preset value, the counter load value, or a custom display
line. Each display can be programmed to be Green or Red on Dual Color
models. The full value mnemonics are factory set to:
RATE
PEAK
VALLEY
COUNT
The first character of the full mnemonic is displayed to the left of the
appropriate numeric value if the other line is not programmed to display the
full mnemonic. For rate peak and rate valley displays, the abbreviated
mnemonic is the first character of the full rate mnemonic, followed by the
first character of the full peak or valley mnemonic. The following is a list
of the single or dual character mnemonics that are displayed for the factory
set full mnemonics:
R - | Indicates the Rate Value. _ ne
Rp _ - |Indicates the Rate Peak Value.
Rv Indicates the Rate Valley Value, _
C - |Indicates the Counter Value.
O-1 23456 |- |Indicates output status:
The numeric digits show which outputs are on.
nn When the output is off, the digit is replaced by a small box (n).
Lal Indicates Preset 1 Value. В
P2 Indicates Preset 2 Value.
P3 indicates Preset 3 Value.
P4 Indicates Preset 4 Value. |
Р5 Indicates Preset 5 Value. _ _
P6 Indicates Preset 6 Value. |
CL Indicates Counter Load Value.
-27-
SCROLL SPEED (SCRO.SPD)
The indication displays can be set to scroll automatically at a 2.5 or 5
second rate. The displays can be selected not to scroll, in which case the up
and down arrow keys are used to scroll through the displays.
DISPLAY INTENSITY (DSP.LEVEL)
The brightness of the backlighting can be adjusted from 1 to 5, with 5 as
the brightest. On dual color models, there is a separate adjustment for each
color.
CUSTOM DISPLAY LINES (CUST.DSP.1 / CUST.DSP.2)
The Legend Plus has two Custom Display Lines which allow the user to
specify the number of digits of a value to be displayed on the line, along
with any alpha-numeric prefix or suffix. This feature has the samc available
characters as messages and program mnemonics. The numeric digit
positions are indicated by pressing F1 and ENT at the desired display
position. For a complete list of characters and text editing key functions,
see Program Messages Text Editing section.
MNEMONIC
Allows the user to modify main display value mnemonics (RATE,
COUNT, etc.) to display thc mnemonic of their choice. For example, the
value "RATE" can be changed to read "SPEED". See Program Messages
Text Editing section for a complete listing of available characters and text
editing commands.
MENÜ The following flowchart shows only the Display portion:
PROGRAM
[oozes 2 SUB 280 SUB SUB-EDIT КОН
MENU MENU MENU MENU
=> => *
DONA PROGRAM um e TT TT - — D1 CiNET Di UNET
DISPLAY _ ea ene MNE -—— = еее еее сео ео не = | —| ~ MNE RATE - MNE
na a D1 LINEZ => SCRO. 50 UNE 01 UNIT
MESSACE DISPLY 2 RN VAL row | Pea PEAK MNE
fv NT —
\ \/ => — _ у tv
roe SCRO. SPO e oi 1
——p— 25 SEC. = и
_ V AVY > —. ——*
hry | SCRO. SPD => , lo . -- 31 |
© ; 50 SEC. - SP. LEVEL ee 1105 — ..
и = = (CREEN _ 5 ik omen
sa> \ A
[o es = === === — — UNE?
SCRO. SPbps — ——— п DS. LEE DSP LE LEVEL CUST.DSP1
i “т RED 1105
РУ => —
Ou. SP.LEVEL о ms sr 1 or À CUSTUSP
\ SEL> SE» У.
PROGRAM }-&— — — — -—- — -— — УП с051.05Ра|- — == — -—-——{CUST.DSP.1 D1 +7
cusTt.os». [=- LL —— 1 DO TT TS VAL- RATE OUTS
das - * * v Y
RATE | fo we) [a DSP. e CUSI.USP.1 o LINFI | *
DOWN ARROW TOGGLES
[ra ro pas CPS VAL- LE PRESET 1] BETWEEN MNEMONICS (MNE)
о V = > LoPnoNS & Vv V or NUMERIC VALUE (VAL) OP NON.
) PEAK MNE- реак MNE CUST.OSP A PROGRAMMING CUSLDSP. D1 UNE)
PEAR VAL- ONT ARE THE SAME VAL. VALI PRESET 2
AS CUSTDSP1
\ >> \ Y
VALI MN VALL MNE ] ** cuss DSP. CUST.DSP, CUS1.DSP.1 DI LINE1
VALLEY VALLEY CN f=. diy CNT VAL -CNI PRESETS
У o> _ __- МО A
CNT MNE MNE | ** D1 LINé 1
COUNT Toount _ PRESET 4
OVR MNE —MNE ** ALL STANDARD AND EUROPEAN DI a
OVERF1 OW OM FLOW CHARACTERS ARE AVAILABU (St! PRESET 5
PROGRAM MNI MONICS FOR DETAIS
mer DT INET
BU4 PRESET 6
Vv \
To Di UNI
Cl. LD.
-28- L iv
PROGRAM MESSAGE MODULE
Up to 10 messages can be programmed in the Legend Plus.
Messages can be requested by an output status change, User
Input(s), or through serial communications. The messages can be
programmed for block or character scrolling, to blink, time out,
and to alternately flash between message and indication display.
On dual color models the message can be programmed to be
displayed in the other color. This would by useful in drawing the
operator’s attention to the message. The following flowchart
shows only the Message portion:
MESSAGE TYPE
1L Block - A 1 line block message utilizes the top line of the
display. The bottom line of the display indicates the
information that was viewed before displaying the message.
When there are multiple blocks in a message, the message text
sequences to the next block every 2 seconds.
2L Block - A 2 line block message uses both lines of the display
to display the message. Messages with more than ! block
automatically sequence to the next block every 2 seconds.
1L Scrol - The message text scrolls from left to right on the top
line of the display. The bottom line of the display indicates the
information that was viewed before displaying the message.
The scroll rate 1s approximately 3 characters per second.
2L Scrol - The message text scrolls from left to right on the top
line of the indication display. The bottom line of the display is
blanked.
When the message type is changed, the unit automatically
replaces End of Block or End of line Characters with End of Line
or space characters if appropriate. The message text may require
editing when the message type is changed.
MAIN
MENU
PROGRAM
DISPLAY SU
ME
PROGRAM | —- PROG!
MESSAGE _ "MS,
PROGRAM
COM. PORT
B EDIT SUB—EDIT EDIT
NU si MENU MENU x MENU
a, PROGRAM Y se, ) MSG
— MSG, #9 BL on K ——1 1 BL ox
= iv «>
asc) [MSG #0 ol
ENT
Ma su>
asc] Imsc. y0l-—eJmso. #0
[PRIOR --_ 1 [PRIOR 1!
E
| EN
æsc| |MSG. #0 MSG. #0
#_ DOWN ARROW KEY Mm MUX — NO MUX -- NO
FOCCLES BETWEEN THE np TT
YES ur NO OPTION. \ |
LED 0;
asc] [MSG. #0|-——{MSG. #0
MNT. REQ MNT. REO
MH
|| Vos» 2
asc| [MSG. #0 MSG. #0
E. TIMED
vient 17 m A
-29-
A
a
<= пе! w= абс.
TIME ИМЕ
У
#0
— LE SEL
| | MSG.
GREEN
oT © TENT
Y
SC] MSG.
A
- ee _ *
sc} |MSG. VO) MSG. #0
BLNK-- NO |=--BLNK- NO
XP
GREEN
1L BLOCK
Zl. BLOCK
1L SCROL
2L SCROL
Program the actual
message(See Messuge
Text for details)
1 108
t= THE HIGHEST
lhis option ovailgble
only for 1 & 21.
Block messages.
* . . .
This option available
only for 1 & Ai
Block messages.
MNT. REQ
MOM. KI D
NMED
NL END
LATCHED
1 TO 599 SECONDS
5| (only appears if TIMED
message is selected)
GREEN
RED
PROGRAM MESSAGE MODULE (Cont'd)
MESSAGE TEXT
A message can contain up to 200 characters. The keypad can be used to
perform message editing functions such as; scrolling through message text,
inserting and deleting characters, toggling from upper/lower case, toggling
from Extended/Standard ASCII characters sects, etc. Refer to table below
for text editing key functions. Message Text and other message parameters
may also be programmed utilizing the optional Legend Plus Programming
Software.
Before entering message text, the message type (11/21. Block or Scroll)
should be configured. This selection will affect the formatting of the
message text. When entering block messages, an end of line character and
an end of block character can be used to conserve message memory. The
End of Line character is displayed as a small open square. It is used only on
the top line in 2 line block messages. If there is more than one space at the
end of the top line, the End of Line character should be inserted after the last
non space character. The End of Block character is displayed as a large open
block. It can be inserted after the last character of a message block on either
display line.
Block are not used in character scrolling messages (11. or 21. Scrol).
The Last character in a message is the End of Message character, which
1s displayed as a large solid block. The End of Message character cannot be
edited.
Message blocks that contain only End of Line and/or End of
Block characters will be blank when displayed. The End of Line or End of
-30-
Text Editing Key Functions: 4 Keys Pushed |
| Scroll through ) characters o _AOpV |
| Select Character position e >or< |
_ Resetto "A" character ~~ Fi + A
| Reset to the space ch character ] ed HE |
Insert space Character, push right o He |
_ Delete character, pullleít — 2222222 BN _ _F+< |
_ Insert End of Line 1 Character В A] Е 1+ PRS |
Insert End of Block Character or F1 + ENT
_… Numeric Field Position (Custom Disp. lines) | ~~ |
_ Upper/L ower Case toggle ___.___ |. PRA
_ Toggle between Extended 4 Standard Character F2+v
Special Use Characters
= - End of Line 1
{] - End of Block
i - End of Message (Non editable)
Note. In message and mnemonic text entry, the FI £ F? User Input functions
are disabled
ASCII TABLE OF EXTENDED CHARACTERS
HEXA
DECIMAL
DECIMAL
LEGEND
CHARACTER |
80
128
81°
82
129
130
BLA _
84 _ 32 ра
85 133 a
86 134 â
| 87 135 с
136
137
138
139
140
141
142
143
144
145
186
18
148
een
_ DECIMAL
95
99 |
ec |
LL Dm
|... DECIMAL
149
150
191
152
13 |
154
155
| CHARACTER
LEGEND
|
[
1
|
a
|
|
|
| AC 160
AM e |
A2 ‚162
АЗ 163
А4 164 |
“AS 165 |
— 6 166 |
AT 167 |
|. AB 168
ео oz |= © o — a | ee
ASCII TABLE OF STANDARD CHARACTERS
HEXA LEGEND HEXA LEGEND HEXA LEGEND HEXA LEGEND
DECIMAL | DECIMAL | CHARACTER DECIMAL | DECIMAL | CHARACTER DECIMAL | DECIMAL [CHARACTER| | DECIMAL | DECIMAL | CHARACTER
20 32 38 56 8 | 50 | 8 |... P | 68 104 h
21 33 | 39 57 9 51 81 _Q | 69 105 A
22 34 3A 58 - 52 82 В: 6A 106 ji |
23 35 # 38 59 ; 53 83 5 6B | 107 k
24 36 $ 3C 60 < 54 84 T | 6C 108 |
25 37 % 3D 61 = 55 85 U 6D 109 m
26 38 & 3E 62 > 56 86 V БЕ 110 | n
27 39 3F 63 ? 57 87 W 66 | 114 o
28 40 ( 40 64 @ 58 88 X | 70 112 р
29 | 4) 41 65 A] 58 | 89 | Y 71 113 q |
2A 42 + 42 66 B 5A 90 z | | 72 114 r
2B 43 + 43 67 С 5В 91 [ 73 115 Ш
2C 44 44 68 D 5C 92 \ 74 | 116 | —t
2D 45 - 45 69 E sb pes ро) À 75 | 117 и
| 2E | M8 | 468 | 70 F SE 94 ^ 76 | 18 | —v
2F 47 o MA G SE 95 — _77 119 | w
— 30 48 | 0 48 | 72 H 60 96 — Le. 78 120 XxX |
p.31 4. 88 LA 49 | 73 61 97 a … 79 121 Y —|
32 02 MA | 74. J 62 98 b _ TA 122 Zo
33 1 8 | 3 8 4 75 K 63 99 с |. 7В 123 {|
34 52 4 4C 76 Lo — 64 100 d LIC | 124 {| A0
35 53 5 AD 7 1 _M 65 „101 _® ID | 125. d
__ 36 54 6 4E 78 N 66 102 | — f | 7E 126 | =
— 37 55 7 | 4F 79 O 67 103 | 9
„32.
MESSAGE PRIORITY (PRIOR - 1)
Messages can be assigned a priority from 1 to 8 (1 = highest priority).
Messages of equal or higher priority will supersede or replace a displayed
message of lower or equal priority.
BLINKING MESSAGE (BLNK-YES/NO)
This parameter enables the message to blink at a one second rate when
displayed. This mode is only available with 1 or 2 line block messages.
MULTIPLEX (MUX - YES/NO)
Allows a message to be multiplexed with the indication display. The unit
displays the requested message then the indication display cach for 2
seconds. Message multiplexing is only available with 1 or 2 line block
messages.
MAINTAINED/MOMENTARY MESSAGE REQUEST
MNT, REQ (Maintained Request)
Programming a message for maintained request allows the message to be
re-requested 1f the message has been displaced by another message. To be
re-requested, the User Input or output reguesting the message must be active
(maintained) and the interrupting message must have been cancelled.
Maintained messages of the same priority are treated as follows when
more than one message requesting input or output is active. A new message
of the same or higher priority will always be requested when the request
source is activated. When a maintained message is cancelled. the message
of the requesting input or output of highest priority is displayed. The
priority order, from highest to lowest, for the various request sources are:
User Input 1, 2, 3, 4, User F1, User I'2, Binary Message Request inputs, and
Outputs 1 to 6. User Input 1 (programmed for REQ.MSG) has the highest
priority and Output 6 has the lowest.
MOM. REQ (Momentary Request)
Once a momentary message is displayed, if another message is requested
and displaces the momentary message, the momentary message is cancelled.
It will not be requested again unless the User Input or output is deactivated
then activated again. If no other messages are requested while the
momentary message is displayed, it remains on the display until cancelled
as programmed.
-33-
MESSAGE CANCELLATION
Any displayed message is immediately displaced when another message
of equal or higher priority is requested. A displayed message can also be
cancelled by activating a User Input programmed for the Cancel Message
function, or via the serial port. If no other function purposely cancels a
message, 11 15 cancelled per the cancellation mode programmed. A message
that 1s programmed for maintained request will be re-requested when the
message times out or is cancelled, if the request source (User Input or output)
is still active. [If several maintained messages’ request sources are active.
and the last requested message times out or is cancelled, the message
associated with the highest priority input will be requested next (See
Maintained Request).
LATCHED - Latched messages can only be cancelled by the methods
described above.
TIMED - Timed messages automatically cancel at the end of the specified
time period as programmed in "MESSAGE TIME". A Character or block
scrolling message will scroll to the end before being cancelled. This
causes the message to remain on the display longer than specified by the
time-out value. A 2 Line Block message will stay on the display for a
minimum of 2 sec. (! block time) before timing out. The message time
out value 1s initially set to 5 seconds when the timed mode is selected,
TIL END - A message programmed for this mode will automatically get
cancelled when the output or User Input programmed to request this
particular message deactivates. Only one request source should be
programmed to request a message set for Til End. A Til End message that
is requested by serial communication will be immediately cancelled, 1f
there is an inactive request source set to request that message.
MESSAGE TIME
This parameter is available only if the message cancellation mode is set
tor timed. The message time for a timed message can be programmed from
1 to 599 seconds.
MESSAGE COLOR
Can be programmed for Red or Green on dual color models.
PROGRAM COMMUNICATION PORT
When communicating to a Legend Plus via the serial port, the data formats
of both units must be identical. The Baud Rate and Parity Bit/number of
data bits are selected for the data format in this module along with the Unit
Address and Serial Transmit Delay. Serial communication is covered in
detail in the SERIAL COMMUNICATIONS SECTION. The following
flowchart shows only the Communication portion:
MAIN
MENU
oc |
MESSAGE SUB F DIT
| MENU MF NU PROGRAMMABLE OF 1IONS:
=>
FROGRAM BAUDRATE BAUDRATE 2400
COM. PORT <a 99° —-1 9600 4800
TE PT 9500)
o E >
me | = E mu | ODD- 76 (7 DATA BITS)
NONE-BB (8 DATA BITS)
PRINT OP_ 0DD 7B 000 78 NONE Bt © DATA BITS,
У SEL >
pot ADDRESS E
OU 49
* - DON ARROW KEY сен. Qo
TO 1G ©
THROUGH OPTIONS. \/ SHE >
ss [IF] de RIGHI XMIT Ko = jar TDLY 0.100
ARROW KI YS 10 0.002
SELECT DIGIT, UP 0.10 0.100
i ENT
& DOWN KEYS 10
CHANGE THE
OIGITS VALUE.
BAUD RATE
The Baud Rates available are: 1200, 2400, 4800, and 9600 Baud.
PARITY, NUMBER OF DATA BITS
The Parity can be ODD-713 (7data bits). EVEN-7B (7 data bits), or No
parity-8B (8 data bits). If any of the extended ASCII characters are to be
-34-
transmitted serially (used in mnemonics orin message 40 when MSGO-YES
is configured), the unit must be configured for 8 data bits (NONE-8B).
UNIT ADDRESS
The Unit Address can range from 00 to 99. This allows addressing of
multiple units on a single pair of wires and a common (RS-485 only), with
each unit capable of having a different address. If only one unit is on the
line an address of zero can be used, eliminating the need for an address
command.
SERIAL TRANSMIT DELAY
The Serial Transmit Delay 1s the minimum amount of time the Legend
Plus unit waits to transmit data to a peripheral unit. The time begins after
the Legend Plus receives a command to transmit data or when a print request
is received. The delay can be set for 0.002 or 0.100 second. This delay time
gives the software controlling an RS-485 interface card time to change the
RS-485 port from transmit to receive mode.
PROGRAM PRINT OPTIONS MODULE
A print operation occurs when a User Input, programmed for the print
request function, is activated or when a "P" command is sent via the serial
communications port. The unit will transmit the values selected as "Y ES"
in this module.
If a display 1s in an overflow condition, an asterisk will precede the digits
that are printed (ex. positive overflow * 2178, negative overflow * -21738).
Serial transmissions are covered in detail in the serial communications
section.
MNEMONICS (MNEM-Yes/No)
When transmitting data, the unit can be programmed to suppress the
address number, mnemonics, and some spaces by selecting NO for the
MNEM {mnemontcs). A selection of NO results In a faster transmission and
may be useful when interfacing with a computer. However, when
interfacing with a printer, sending mnemonics is usually desirable. Setting
MNEM to YES inserts the address, mnemonics and a 400msec printer delay
following each transmitted print option. An example of sending and NOT
sending mnemonics are shown below:
6 CNT 123.8<CR><LF>
123.8<CR><LF>
with mnemonics
without mnemonics
TRANSMIT AND RESET (TX&R-Yes/No)
When programmed to YES each count value selected to be printed is reset
after the count value is acquired for serial transmission.
MESSAGE TRANSMIT #0 (MSGO-Yes/No)
Enables the first 60 characters of message #0 to be transmitted as a print
header (first item in the print out). For a single line print header, program
message 40 as 11, or 2L Scroll. For a multiple line print header, program
message 10 as 1L or 2L Block. The End of Line or End of Block character
is used to indicate the end of a line on the header. Do not use them in the
same fashion as messages to be displayed on the unit. When entering the
text for cach line, if a word does not fit on a line, allow it to continue on the
next line or block. Refer to Program Messages section.
The following flowchart shows only the Print Options portion:
-35-
MAIN
MENU
[eco
CUM. PORT SUR EDIT
MENU MENU
— YY > оз со»
PROGRAM w= PRINT OP F— - PRINT OP
PRINT OF ~ {RATE - YES КАП TS
—_— - - <} 5с “ — ENT . E
Y … AV > | *
PROGRAM PRINT OP ——#IN1 QF
OPTIONS PEAK-- NO —PtAK NO
> __ \K- N pp
У YE A
PRINT or —— PRINT ОР
VAIL МАМ NO
У LE *
PRINT or —— RINT OP
ONT — ent - ES
\ SEL >» _ *
PRINT OP -—— -PRINI OP
SFS- NO Sis NO
“> i *
(PRINT or PRINT OF
P18e2 - 1827 - NO
У , => _ 0%
PRINT or PRINT oo
PA - №орж PA
V „> *
PRINT or - PRINT oP
P5&G- NO —— 1P5&76- NO
a
PRINT OP }- - PRINT OP
CILD.— NG= (CID. NO
ENT
У => *
PRINT OP | PRINT OP
MNEM-- YES MNEM- YES
PRINT OP PRINT OP
IX&R - NO | X8t-- NO
зн >
*--- DOWN ARROW TOGGLES
BETWEEN 1HE YES
or NO OPTION.
PRINT OP PRINT OF
| MSGO— YES pa — ¡MSCO ns
PROGRAM OPTIONS MODULE
The Program Options module is used to program the Operator Accessible
functions, Preset Tracking selections, the Programmable Code value, or load
the Factory Settings. The flowchart shows only the Options portion.
OPERATOR ACCESS
The Operator Access menu is used with the Program Disable DIP switch
and/or an external User Input selected for program disable. Values can be
set for YES, NO, or LOC. When a value 15 selected for NO, the operator can
view the value, but CANNOT change it from the front panel keypad (See
Front Panel Accessible Functions With Program Disable for details). Values
selected for LOC do not appear in the displays outside of the programming
loop. The following values can be disabled from front panel access
programming:
Preset 1 Preset 5
Preset 2 Preset 6
Preset 3 Counter Load value
Preset 4 Scale Factors
PRESET TRACKING
If Preset Tracking is enabled and a preset value is changed, the preset
value that is tracking it will also change by the same offset. The amount of
offset between presets is changed by changing the preset value doing the
tracking first. Example: Preset 1 is tracking Preset 2. If Preset 2 1s 100 and
it is desired that Preset 1 occurs 20 counts before Preset 2, the Preset 1 value
would be set to 80. If Preset 2 is then changed to 200, Preset 1 will
automatically change to 180, maintaining the same 20 count Offset. All
presets can be set to track a different preset if they are assigned to the same
function (rate or count). If only one preset is selected for a particular
function then that preset cannot be used for preset tracking.
PROGRAM CODE (PRO.CODE)
The value can be programmed from 0 to 99. This value may be required
to be entered before the unit allows access to programming menus,
depending on the level of security that has been chosen. Programming a
value of 99 disables access to programming menus when PGM.DIS. switch
is on. Refer to "Front Panel Accessible Functions with Program Disable.”
MAIN
MENU
PROGRAM
PROGRAMMABLE
PRINT OP 2ND SUB suB EDIT OPTIONS:
MENU а
мон» MENU, => MENU »
PROGRAM OPERATOR UP ACCES OP ACCES YES
OPTIONS -- -—| ACCESS — 19'S-- YES SFS— ns LOC
5 ax" e
v ==] м ог
PROGRAM DP С ns
SCALING Loc
Y
YES
NO
LOC
YES
NO
LUC
TES
ND
LOC
TES
мо
LOC
TES
NO
LOC
Ys
NO
LOC
| > 0007 SEL Lu
PRESET — — PP} TRAC Pr TRA
TRACKING h4-———— NON NON
. my A
PRO.CODE e rr P2 TRAC P1 TRA
о DO NON P
or _ Lo
| Y aı> | У Vv
USER USER Ps TRAC P1 IRA
SETTINGS —J SETTINGS NON P
SET 13 _ мо _ Р.
Y — 7 \ Vv
-36-
FACTORY
SETTINGS
CUWN ARROW KEY TO
SCROLL THROUGH THE
AVAILABLE OPTIONS.
pr
TRAC
NONE
У | У
F5 TRAC P1 TRA
; NONE _ Р.
У
Ре IHAC
NONE,
|v
USER/FACTORY SETTINGS
This module should only be entered if the operator wants to reset ALL
parameters to the factory settings. When the word "FACTORY" is flashing
in the display and the ENT key is pressed, all parameters will be set to the
the factory settings option WITHOUT resetting all parameters by pressing
factory settings when exiting the programming loop. The operator can exit
SCALE FACTORS
COUNT SF
RATE SF
CNT. SCM
CNT. D.P.
RATE SCM
RATE PER
RATE D.P.
CHG. CNT/
WITH SF
RATE
MIN. TIME
MAX. TIME
COUNTER
CNT. INPUT
RESET
AUTO. RST
.0000
.0000
1
1
ECOND
CT+DIRX1
TO ZERO
DISABLED
USER INPUTS
BIN. MSG.REQ.
USER INP. 1
USER INP. 2
USER INP. 3
USER INP. 4
USER F1
USER F2
resel.
LGPM FACTORY SETTINGS CHART
NONE
NO MODE
NO MODE
NO MODE
INHIBIT
MNT RST
RATE-NO
PEAK-YES
VALLEY-YES
COUNT-NO
MNT RST
RATE-NO
PEAK-NO
VALLEY-NO
COUNT-YES
OUTPUT 1
ASSIGNED
ACT/TIME
OUTPUT END
DLY TYPE
ON DL TIME
OF DL TIME
OFF@P.
RST/C
REQ MSG #
OUTPUT 4
ASSIGNED
PHASE
TYPE
ACT/TIME
DLY TYPE
ON DL TIME
OF DL TIME
OFF@P.
RST/C
REQ MSG #
-37-
TO CNT
+
TIMED
0.10
DISABLED
UP
EN
TO CNT
+
TIMED
0.10
UP
EN
QUTPUTS
OUTPUT 2
ASSIGNED TOCNT
PHASE +
TYPE TIMED
ACT/TIME 0.10
OUTPUT END DISABLED
DLY TYPE
ON DL TIME
OF DL TIME
OFF@P. UP
RST/C EN
REQ MSG # —
OUTPUT 5
ASSIGNED TO CNT
PHASE +
TYPE TIMED
ACT/TIME 0.10
DLY TYPE
ON DL TIME
OF DL TIME
OFF@P. UP
AST/C EN
REQ MSG #
OUTPUT 3
ASSIGNED
ACT/TIME
DLY TYPE
ON DL TIME
OF DL TIME
OFF@P.
RST/C
REQ MSG #
OUTPUT 6
ASSIGNED
PHASE
TYPE
ACT/TIME
DLY TYPE
ON DL TIME
OF DL TIME
OFF@P.
RST/C
REQ MSG #
the <ESC key. The following are the settings when shipped from the factory,
along with a chart for user settings:
Caution: If factory settings are selected, all programming by the user will be
TO CNT
+
TIMED
0.10
UP
EN
TO CNT
TIMED
0.10
UP
EN
DISPLY 1
D1 LINE 1
D1 LINE 2
D1 COLOR
DISPLY 3
D3 LINE 1
D3 LINE 2
D3 COLOR
SCRO. SPD
DSP. LEVEL
CUST. DSP.
CUST. DSP.1
CUST. DSP.2
G
R
LGPM FACTORY SETTINGS CHART (Cont'd)
DISPLAY
CUST.DSP.2 DISPLY 2
CUST.DSP.1 D2 LINE 1
GREEN D2 LINE 2
D2 COLOR
VALI-MNE DISPLY 4
VALI-VAL D4 LINE 1
GREEN D4 LINE 2
D4 COLOR
NONE
5 MNEMONIC
5 RATE
PEAK
VALI
VAL-RATE CNT
EN CPS OVR
VAL-CNT MEM AVAIL
EM CNT
MESSAGE
MSG. + Oto 9
TYPE 1L BLOCK
TEXT *
PRIORITY 1
BLINKING NO
MULTIPLEX NO
MOM/MNT REQ MNT
CANCEL LATCHED
TIME SEC.
COLOR GREEN
* - Message Number (single digit) is
entered in message text.
PEAK-MNE
PEAK-VAL
GREEN
CNT-MNE
CNT-VAL
GREEN
RATE
PEAK
VALLEY
COUNT
OVERFLOW
804
-38-
COM. PORT
BAUD RATE
PARITY
ADDRESS
XMIT DLY
PRINT OP
RATE
PEAK
VALI
CNT
SF'S
Р1&2
P384
P586
CTLD.
MNEM
TX&R
MS GO
9600
ODD-7B
00
0.100
YES
NO
NO
YES
NO
NO
NO
NO
NO
YES
NO
NO
OPTIONS
ACCESS
P1 YES
P2 YES
РЗ YES
Pa YES
Р5 YES
P6 YES
CTLD. YES
SFS YES
PRESET TRACKING
P1 TRACK NONE
P2 TRACK NONE
PI TRACK NONE
P4 TRACK NONE
P5 TRACK NONE
PE TRACK NONE
PRO. CODE 0
PRESETS
P1 500
P2 1000
P3 300
P4 400
P5 500
P6 500
CL -100
SCALE FACTORS
COUNT SF
RATE SF
CNT. SCM
CNT. D.P.
RATE SCM
RATE PER
RATE D.P.
CHG. CNT/
WITH SF
BIN. MSG.REQ.
USER INP. 1
USER INP. 2
USER F1
MIN. TIME
MAX. TIME
CNT. INPUT
RESET
AUTO. RST
USER INPUTS
USER INP. 3
USER INP. 4
USER F2
COUNTER
OUTPUT 1
ASSIGNED
PHASE
TYPE
ACT/TIME
LGPM USER SETTINGS PROGRAM SHEET
RATE
OUTPUT END 1
DLY TYPE
ON DL TIME
OF DL TIME
REQ MSG #
OUTPUT 4
ASSIGNED
PHASE
TYPE
ACT/TIME
DLY TYPE
ON DL TIME
OF DL TIME
EP.
RST/C
REQ MSG #
-39-
OUTPUTS
OUTPUT 2
ASSIGNED
PHASE
TYPE
ACT/TIME
OUTPUT END _
DLY TYPE
ON DL TIME
OF DL TIME
О @Р.
RST/C
REQ MSG #
OUTPUT 5
ASSIGNED
PHASE
TYPE
ACT/TIME
DLY TYPE
ON DL TiME
OF DL TIME
— GP.
RST/C
REQ MSG #
OUTPUT 3
ASSIGNED
PHASE
TYPE
ACT/TIME
DLY TYPE
ON DL TIME
OF DL TIME
OP.
RST/C
REQ MSG #
OUTPUT 6
ASSIGNED
PHASE
TYPE
ACT/TIME
DLY TYPE
ON DL TIME
OF DL TIME
e GP.
RST/C
REQ MSG #
LGPM USER SETTINGS PROGRAM SHEET (Cont'd)
DISPLAY
DISPLY 1 DISPLY 2
D1 LINE 1 D2 LINE 1
D1 LINE 2 a D2 LINE 2
D1 COLOR ОНИ D2 COLOR
DISPLY 3 DISPLY 4
D3 LINE 1 _ D4 LINE 1
D3 LINE 2 nn D4 LINE 2
D3 COLOR D4 COLOR
SCRO. SPD menes MNEMONIC
DSP. LEVEL Go _ RATE
В — PEAK
VALLEY
CUST. DSP. COUNT
CUST. DSP 1 OVERFLOW
MEM AVAIL
CUST. DSP .2 a
MESSAGE
MSG. # a MSG. #
TYPE —— TYPE
TEXT LE TEXT
PRIORITY o PRIORITY
BLINKING — — BLINKING
MULTIPLEX as MULTIPLEX
MOM/MNT REQ _ MOM/MNT REQ
TIMED TIMED
TIME SEC. o TIME SEC.
COLOR COLOR
MSG. H
TYPE
TEXT
PRIORITY
BLINKING
MULTIPLEX
MOM/MNT REQ
TIMED
TIME SEC.
COLOR
MSG. #
TYPE
TEXT
PRIORITY
BLINKING
MULTIPLEX
MOM/MNT REQ
TIMED
TIME SEC.
COLOR
MESSAGE
_ MSG. #
— _ TYPE
— TEXT
— — PRIORITY
Le LL BLINKING
MULTIPLEX
MOM/MNT REQ
TIMED
TIME SEC.
COLOR
MSG. #
TYPE
TEXT
PRIORITY
BLINKING
MULTIPLEX
MOM/MNT REQ
TIMED
TIME SEC.
COLOR
MSG. +4
TYPE
TEXT
PRIORITY
BLINKING
MULTIPLEX
MOM/MNT REQ
TIMED
TIME SEC.
COLOR
MSG. #
TYPE
TEXT
MESSAGE
—— MSG. #
_ TYPE
— TEXT
DL PRIORITY
EE BLINKING
MULTIPLEX
PRIORITY
BLINKING
MULTIPLEX
MOM/MNT REQ
TIMED
TIME SEC.
COLOR
LGPM USER SETTINGS PROGRAM SHEET (Cont'd)
MOM/MNT REQ
TIMED
TIME SEC.
COLOR
MSG. #
TYPE
TEXT
PRIORITY
BLINKING
MULTIPLEX
MOM/MNT REQ
TIMED
TIME SEC.
COLOR
COM. PORT
BAUD RATE
PARITY
ADDRESS
XMIT DLY
RATE
PEAK
VALI
CNT
SF'S
Р1&2
РЗ& 4
P5&6
CTLD.
MNEM
TX&R
MSGO
-41-
PRINT OP
OPTIONS
ACCESS
P1
P2
P3
P4
Р5
P6
CTLD.
SF'S
PRESET TRACKING
P1 TRACK
P2 TRACK
P3 TRACK
P4 TRACK
P5 TRACK
P6 TRACK
PRO. CODE
PRESETS
P1
P2
P3
P4
P5
P6
CL
SERIAL COMMUNICATIONS
Serial communications allows for transmitting and receiving of data
between the Legend Plus and other devices. This feature can be used for
monitoring various values, resetting output(s), and changing values, ali from
a remote location. Typical devices that are connected to a Legend Plus unit
are a printer, a terminal, a programmable controller, or a host computer.
The Legend Plus 1s jumper selectable between RS-485 and RS-232
communications. The RS-485 differential (balanced) design has good noise
immunity and allows for communication distances of up to 4000 feet. Up
to 32 units can be connected on a pair of wires and a common. The unit’s
address can be programmed from 00 to 99. RS232 is useful for connecting
a single unit to a printer or to a computer for programming using the optional
Legend Plus Programming Software.
PROGRAMMING SOFTWARE
Software for IBM compatible PC's is available to program all of the
Legend configuration parameters such as messages, count modes, etc. The
software allows unit configurations to be created, uploaded, downloaded,
and saved to a file for rapid programming of the Legend. Before using the
programming software, the Legend unit should bc powered up and the
version number recorded. This information is needed to take full advantage
of the programming software capabilities.
Note: While using the Legend Plus Programming Software, the Legend unit
should NOT be controlling a process. If the unit is connected while
uploading or downloading the configuration files, unit operation will be
interrupted and counts will be missed.
© .
IBM® compatible 286 or better.
Minimum of 450K FREE conventional memory.
MSDOS 3.3 or later.
RS-232 or RS-485 sertal port with ID of COMI or COM2.
Video TFXT mode of 80 columns x 25 rows.
Mouse supported.
-42-
INSTALLING SOFTWARE
A backup copy should be made of the program disk. The program may
be run using the floppy drive or, it may be installed to a Hard drive. To
install on the hard drive, copy all files from the program disk to the desired
directory on the hard drive.
Refer to "SERIAL CONNECTIONS" section of the manual for
connecting the Legend Plus to a computer.
USING SOFTWARE
To start the Legend Programming Software (SFLGP) switch to the
disk/directory that contains the Software. Type SFLGP and press ENTER.
The software will display an opening screen that displays the current version
of the Legend Programming Software . Press ENTER to proceed to the main
editing screen. The screen is divided into four areas. The top of the screen
contains a pull-down menu that allows actions such as uploading and
downloading of a file. The bottom of the screen displays an alternate method
of accessing the pull-down menu selections by using the F1-F8 keys in
combination with the ALT key. The middle section displays the
programming parameters of the current file and model of Legend. Below the
pull-down menu is the file status information that indicates the current
filename, model and available message/mnemonic memory available.
Multiple pages are used to display all of the programming parameters. To
change the page displayed press PGUP/PGDN or use the mouse to click on
the arrows located at the upper and lower right of the screen.
Uploading/Downloading of files from the Legend requires that the Baud
Rate and Unit Address of both the Legend and the SFLGP be identical. Prior
to performing elther an upload or download, a menu of the current PC
communications settings Will be displayed. These settings may be modified
before proceeding with the intended action. Once the action is started, the
Legend Will display "TX*ING PROGRAM" if uploading or "RX*ING
PROGRAM" if downloading. Uploading is file transfer from the LEGEND
to the PC and Downloading is file transfer from the PC to the Legend.
COMMUNICATION FORMAT
The half-duplex communication operation sends data by switching
voltage levels on the common pair of wires. Data is received by monitoring
the levels and interpreting the codes that were transmitted. After the Legend
Plus receives a Transmit Command or Print Request, 11 waits the Serial
Transmit Delay time before it begins transmitting data. The serial transmit
delay can be programmed for 0.002 or 0.100 second. For data to be
interpreted correctly, there must be identical formats and baud rates between
the communicating devices. The formats available for the Legend Plus unit
are | start bit, 7 or 8 data bits, No parity or | parity bit (odd or even) and |
stop bit. The available baud rates are; 1200, 2400, 4800, or 9600 baud. If
any extended characters are to be used or transmitted, the Legend Plus
communication port should be set-up for Parity of "NONE-8B". This
configures the unit to accept and transmit § data bits with no parity.
Before serial communication can take place, the unit must be programmed
to the same baud rate and parity as the connected equipment. In addition,
the loop address number and print options should be known. When used
with a terminal or host computer and only one unit 1s employed, an address
of zero (00) may be used to eliminate the requirement for the address
command when sending a command. If more than one unit is on the line,
assignment of unique non-zero addresses is required.
DATA FORMAT 5m
10 BIT FRAME e > E
[Parity = ODD-7B, EVEN-7B] ar 7 DATA BITS run
EL e —
-
Em
DE И bol
10 у 5 14 19 Тб 17 T8 19 T10
+-
DATA FORMAT ; i
10 BIT FRAME En а,
[Parity = NONE-8B] к — 8 DATA BITS tn
y —
Ed Lidl Te
ШЕЕ!
10 H 12 13 14 T5 T6 T/ TB о ho
-43-
SENDING COMMANDS AND DATA
When sending commands to the Legend Plus unit, a command string must
be constructed. The command string may consist of command codes, value
identifiers, and numerical data. Below is a list of commands and value
identifiers that are used when communicating with the LGPM unit.
. COMMAND _ | a — DESCRIPTION — ne
M (4DH) | Request message command: Followed by the
| . message number 0 to 9. o
MC (4DH,43H) | Clear message command. _
N (4EH) Address command; Followed by the address number 1
to 99.
P (50H) Transmit print options command; Transmits the options
selected inthe Program Options Module section.
R (52H) Reset value command; Followed by one Value
— | Identifier (E, I, J, O, or 1 to 6 [for outputs]). ————
T (54H) Transmit value command; Followed by one Value
Identifier (A-Q).
V (56H) Change value command; Followed by one Value
LL — | Identifier (A-E, K-0), then the proper numerical data. —_
SENDING COMMANDS AND DATA (Cont'd)
|... VALUE IDENTIFIERS | MNEMONIC |
| A (41H) PRESET © PRO]
B(42H) PRESET2 — P2
| С (43H) COUNT SCALE FACTOR SFC*
| D (44H) RATE SCALE FACTOR SFR*
LE (45H) COUNT CNT*
| H (48H) RATE — RAT*
1{49H) PEAK PEA*
J {4AH) VALLEY VAL*
K (4BH) PRESET 3 P3
L (4CH) PRESET 4 — РА
M (4DH) PRESETS = P5
IN(4EH) PRESET6 1 - P6
O (4FH) COUNTER LOAD 1. CLD
* From Factory Settings, the mnemonic transmitted is based on full mnemonic
programmed in Display Module. The print mnemonic is the first three
characters of the full mnemonic. The printed mnemonics for the Scale Factors
is SH followed by the first character of the full mnemonic for the value
associated with the Scale Factor,
Note: Command identifiers other than those listed shouid NOT he transmitted.
Otherwise, undefined or unpredictable operation could result
The command string 1s construcied by using a command, a value
identifier, and a data value if required. The Data value need not contain the
decimal point since it 1s fixed within the Legend Plus unit, when
programmed at the front panel. The Legend Plus will accept the decimal
point, however, 1t does not interpret them In any way. leading zeros can be
climinated, but all trailing zeros must be present.
Example: If a Scale Factor of 1.0000 is to be sent, the data value can be
transmitted as 1.0000 or 10000. If a "1" 1s transmitted. the Scale Factor
will be changed to 0.0001.
-44-
The Address command is used to allow a command to be directed to a
specific unit on the Serial Communications Line. When the unit address is
zero, transmission of the Address command is not required. This is done for
applications that do not require more than one Legend Plus. Forapplications
that require several units, cach Legend Plus on the line must be given a
non-zero address. If they are given the same address, a command such as
the Transmit Value Command, will cause all the units to respond
simultaneously, resulting in a communication collision. All Legend Plus’s
in a multiple unit application should be given an address other than zero. 1f
a unit has an address of zero, 1t will attempt to process any transmissions
from the other Legend Plus’s as commands. These transmissions fill up the
receive buffer of the unit with an address of zero, which may produce
unpredictable results.
The command string is constructed in a specific logical sequence. The
Legend Plus does not accept command strings that do not follow this
sequence. Only onc operation can be performed per command string.
Below 1s the procedure to be used when constructing a command string.
I. The first two or three characters of the command string must consist of
the Address Command (N) and the address number of the unit (1 to 991
If the Legend Plus address is zero, the address command and number need
NOT be sent.
2. The next characters in the command string is the actual command that the
Legend Plus is to perform (M, MC, P, R, T, or V).
3. A Value or command Identifier is next if it pertains to the command. The
command P (print) does not require a Value Identifier.
4. The numerical data will be next in the command string 1f the "Change
Value" command is used.
5. All command strings must be terminated with an asterisk* (2AH). This
character indicates to the Legend Plus that the command string is
complete and begins processing the command Below are some typical
examples of properly constructed command strings.
(EX. 1) Change Preset 1 Value to 123.4 on the Legend Plus with an
address of 2.
COMMAND STRING: N2VA1234*
(EX. 2) Transmit the Count Value of the Legend Plus unit with an
address of 3.
COMMAND STRING: N3TE*
(EX. 3) Reset Output 1 of the Legend Plus unit with an address of 0.
COMMAND STRING: R1*
If illegal commands or characters are sent to the Legend Plus, the unit
addressed responds by transmitting an error character "E" (45H) in which
case the string must be re-transmitted.
When writing application programs in Basic, the transmission of spaces
or carriage return and line feed should be inhibited by using the semicolon
delimiter with the "PRINT" statement. The Legend Plus will not accept a
carriage return or line feed as valid characters. See "Terminal Emulation
Program" section for a listing of an IBM® PC Basic terminal emulation
program.
It is recommended that a "Transmit Value" command follow a "Change
Value" Command. If this is done, the reception of the data can provide a
timing reference for sending another command and ensures that the change
has occurred. When a "Change Value or Reset Value" command is sent to
the Legend Plus, time is required for the unit to process the command string.
The diagrams show the timing considerations that need to be made. The
Legend Plus process times shown are for a Legend Plus operating at the
maximum count rate. The process times are count rate dependent and will
be considerably less when the unit is operating at low count rates.
-45-
COMMAND LEGEND
_— STRING PROCESS _
CHANGE | TRANSMITTED TIME LEGEND
VALUE rem IN RECEIVE
COMMAND e 200 msec MODE
{Except the BAUD MAX.
Scale Fuctor RATE
volue
—_— _, COMMAND LEGEND
CHANGE STRING PROCESS
SCALE | TRANSMITTED TIME LEGEND
FACTOR —— — IN RECEIVE
VALUE. e 1 SEC MODE
COMMAND BAUD MAX
RATE
— COMMAND LEGEND SERIAL LEGEND CHANGE
TRANSMIT STRING PROCESS | TRANSMIT TRANSMITS , TO RECEM LEGEND
VALUE Y -
ка TRANSMITTED | _ TIME DELAY VALUE MODE IN RECEIVE
PRINT REQUEST @ 300 msec |.002sec ® 300 msec MODE
COMMAND BAUD MAX. or BAUD MAX.
RATE _10Dsec MIN. RATE
RECEIVING DATA
Data is transmitted from the Legend Plus when aT" (Transmit Value) or
a "P" (Transmit Print Options) command is sent to the Legend Plus via the
serial port or when a User Input, programmed for the Print Request function,
is activated. The Legend Plus will wait until the minimum serial transmit
delay time (0.100 or 0.002 sec) expires and then begin transmissions. The
Legend Plus can also be programmed to transmit Mnemonics. The format
for a typical transmission string with mnemonics is shown below:
1 2 3 4 5 6 7 B 9 10 11 12 13 14 15 16 17
Js Elle) len! (12 el ll
LoOJLIL. 1 Е 0
UNIT Y MNEMONICS 2 ZE SIX DIGITS z a
ADDRESS « io! ос 2 L
u H y a Fo
z Cd pi = A
< > 5 <
Im
e Ir
<
O
The first two digits transmitted are the unit address followed by one blank
space. If the unit address is 0, the first locations are left blank. The next
three characters are the mnemonics followed by one or more blank spaces.
The numerical data value is transmitted next. Negative values are indicated
by a "-" sign. If the numeric value is in an Overflow condition, an asterisk
(*) will precede the most significant digit of the value. The decimal point
position "floats" within the data field depending on the actual value it
represents. The numeric data is right justified without leading zeros.
When a "T" command or print request is issued, the above character string
is sent for each line of a block transmission. An extra <SP><CR><LI>1s
transmitted following the last line of transmission from a print request, to
provide separation between print outs.
If Mnemonics are NOT transmitted (MNEM - NO print option), the
Legend only transmits the numeric data. The unit address, extra spaces and
400msec time delay, is not sent. If the Legend Plus transmits Mnemonics
(MNEM - YES), there is a 400mscc built-in time delay after each
transmission string. When interfacing to a printer, sending Mnemonics 1s
usually desirable. Examples of transmissions are shown below:
3 PRC -6732.5<CR><LF> (400msec delay) Mnemonics Sent
-6732.5<CR><LF> NO Mnemonics Sent
-46-
The various Print Options are used with a printer or a Computer Terminal.
They provide a choice of which Legend Plus data values are to be printed,
when either the User Input, programmed for the print request function is
activated, or a "P” (Transmit Print Options) command is sent to the Legend
Plus via the serial port. The Print Options are programmed in the "Program
Print Options” module, the available options are:
. Print Rate Value.
. Print Peak Value.
. Print Valley Value.
. Print Count Value.
. Print Scale Factors (Count & Rate) Values.
Print Presets 1 & 2 Values.
. Print Presets 3 & 4 Values.
. Print Presets 5 & 6 Values.
- Print Counter Load Value.
. Print Mnemonics for all Values.
. Reset selected Count values following print
. Print Message 0.
A print out from a Legend Plus unit with an address of 1 and all print
options selected is shown below. Message #0 is programmed with the text,
"MACHINE #1".
MACHINE #1
RAT54
PEA100
VALO
CNT4000
SFC1.0000
SFR1.0000
P1500
P21000
P3300
P4400
P5500
P6600
CLD-100
— wh rth к — ны === === === === == ==
TERMINAL EMULATION PROGRAM FOR IBM® PC
Utilizing the RS485 Serial communications capability of
the Legend Plus requires the use of an RS485 serial card in
the computer. If an IBM® PC compatible is used, this card
would be installed in an expansion slot on the
mother-board. The RS485 card should be configured for
"2-wire half duplex” operation. For this mode of operation,
each piece of equipment must be able to switch from receive
mode to transmit mode and vice-versa. The Legend Plus 1s
normally in the receive mode. It automatically switches to
the transmit mode when a Transmit Value Command is
issued or a Print Request 1s issued. For the computer to
switch from receive to transmit mode, the controlling
software must be written to perform this task. On most
RS485 serial cards the R TS (Request-to-send) signal can be
configured to be used as the direction (transmireceive)
control signal. The controlling software must switch the
state of the RTS line when the computer is to switch from
transmitting to receiving data.
The Serial Transmit delay, "XMIT DLY", of the Legend
Plus is used to give the computer time to switch from
transmit to receive mode. The delay can be programmed to
be either 0.002 or 0.100 second.
If an RS485 card cannot be obtained, and only an RS232
port is available, the Legend Plus unit has the capability of
operating directly from RS232 by changing the jumper
selection on the back of the unit. When using RS232, only
one Legend can be connected 10 the RS232 port.
Listed below is a basic program that emulates a terminal.
It 1s written using GW Basic. The program may need to be
modified if using a different Basic interpreter. Set up the
Legend Plus for a baud rate of 9600. When the program is
running, commands can be typed in from the keyboard as
shown in the previous examples. An asterisk (*) 15 used to
end all commands, Do NOT use the carriage return to end
a command. When using this program, the Serial Transmit
Delay should be set to 0.100 second.
1 REM"FOR THIS PROGRAM TO WORK THE "RS485” CARD SHOULD BE SET-UP AS COM2"
2 REM "ALSO THE CARD SHOULD USE "RTS" FOR HANDSHAKING”
3 REM "THE LEGEND PLUS SHOULD BE SET-UP FOR 9600 BAUD, AND ODD PARITY"
4 TXEMPTY = &H60
5 LSR = &HZ2FD: REM "COMM2 LINE STATUS REGISTER"
6 MCR = &H2FC: REM "COMM2 MODEM CONTROL REGISTER”
10 CLS : CLOSE :
20 OPEN "COM2:9600,0,7,17 FOR RANDOM AS #1
30 ON TIMER(1) GOSUB 300
40 A$ = INKEYS$: IF A$ <> ""THEN GOTO 1000:REM "CHECK FOR KEYBOARD INPUT"
50 IF LOC(1) = 0 THEN 40 ELSE 80: REM "CHECK FOR INPUT"
60 IF LOC(1) = 0 THEN 80: REM "SKIP CLEARING OF BUFFER”
70 B$ = INPUTS(LOC(1), 41): REM "CLEAR BUFFER"
80 F = INP(MCR} AND 253: OUT MCR, F: REM "SET FOR RECEIVE MODE"
90 IF INP(LSR) < > TXEMPTY THEN 90: REM "WAIT UNTIL DONE TRANSMITTING”
100 TIMER ON
110 IF LOC(1) = 0 THEN 110
120 B$ = INPUTS(1., #1)
130 IF B$ = CHR$(10) THEN 160: REM "TO PREVENT DOUBLE SPACING ON PRINT"
140 PRINT B%:
160 IF NOT B% = "" THEN GOTO 90
170 TIMER OFF
200 GOTO 40
300 TIMER OFF: RETURN 40
1000 D = INP/MCR) OR 2: OUT MCR, D; BEM "SET FOR TRANSMIT MODE"
1010 PRINT #1, A$; : PRINT A$; : REM "PRINT KEYSTROKE”
1020 IF A$ = "* THEN PRINT
1030 IF A$ = "*" THEN IF INP(LSR) < > TXEMPTY THEN 1030 ELSE GOTO 69
1040 AS = INKEY$: IF A$ <>” THEN GOTO 1000
1050 GOTO 1010
-47-
SERIAL CONNECTIONS
When wiring, remove the 10-position terminal block, which 15 on the top
board at the rear of the unit. Refer to the top label and configure the
RS485/RS232 jumpers for the desired interface. Then, refer to the numbers
listed on the label with the terminal description for installing each wire in
its proper location.
For RS-485 the data (transceiver) wires connect to the A (+)/ITXD and B
(-/RXD terminals. It is recommended that shielded (screencd) cable be
used for serial communications. This unit meets the EMC specifications
using Alpha 42404 cable or equivalent. There are higher grades of shielded
cable, such as, four conductor twisted pair, that offer an even higher degree
of noise immunity. In some applications, a signal ground may be required
lo establish a ground reference. The signal ground 1s required if the
equipment docs not have internal bias resistors connected to the transceiver
lines. The signal ground is connected from only one Legend Plus to the
equipment, If necessary, the shield can be used as the signal ground.
TERMINAL DESCRIPTIONS
COMM. - Common required for some applications.
A (+) TXD E B(-YRXD - The Legend Plus transmits and receives on these
two terminals which are connected to the external device.
TX EN. - Used primarily with a Red Lion Controls (RIC) GCM422 module
to interface with an RLC model DMPC printer or connect Legend Plus’s
in a 20 mA communication loop with other units.
-48-
For connection to an GCM232 Converter Module, refer to diagram below.
MODEL GCM232
DB25
CONNECTOR (DCE) LEGEND PLUS (TBC)
2 4--———. --— 1х0 (8)
3 = - D RXD (9)
4 <-—
7
Sy
< =
+ . -—P COMM. (5)
20
For connection to an RS232 port on a computer, refer to diagrams below.
DB9
CONNF CTOR (DTE) LEGEND PLUS (TBC)
2 «——— > ——— TX (8)
5 = „ес ФО ВХО (9)
4 <a.
, + --—— COMM. (3)
6 <
7
>.
DB25
CONNI CTOR (Dt) |EGEND PLUS (TBC)
3 «— —=—— ——- JXD (8)
э — „—————-- B RXD (9)
4
al
6
7 “7 BP COMM. (3)
70 «|
When all connections are made, replace the terminal block into its proper
location.
CONNECTING TO AN RLC PRINTER
ge E pe Lope
One or several Legend _ RUE, <a Ч a
x Ras 252 Plus units can be OR Pires
Suda connected to an RLC raseoazama) -— [ra ;
< = HI MODEL APS model DMPC printer MO THE Ре
4111 11006 POWER SUPPLY Using an Optional RLC — —
EE o GCM422 converter LIZ.
a 3 module. The two applica- | Нор
L 1/2 WAIT “ © tions show the wiring for NODEL APS
680 Ohm a single and a multiple POWER SUPPI Y
GCM422 Legend Plus hookup to the € à
= printer. S 2
The TX EN (Transmit 1/2 WAN Ny 7
. , . 680 Ohm -
Enable) terminal is
connected to the transmit
— disable pin on the
GCM422 module. The
printer can then receive
AX+ Pın(25) вер | data when a User Input,
Xv PNT) GAN programmed for the print a
BX- PiN(z3) wir 4 request function, is
TX _PIN(P4) BX Y activated. D -CONNUCIOR PIN §S RX+ PIN(25) RED
The GCM422 module and Legend must have Te Pe) oN
their jumpers placed in the 485 position. The
25 pin connector on the GCM422 module must
have pins 2 & 3 and 14 & 16 jumpered. The
Legend Plus must be programmed for the same
baud rate as the printer. When more than one
Legend Plus 15 on the line, each TX EN terminal
is connected to the transmit disable pin of the
GCM422 module. Only one Legend Plus can
have the print function activated at a time,
otherwise, communication line collision will
occur resulting in a garbled print-out.
RX- FINGZ3) WHI |
PIN(24) BK |
-49-
SERIAL CONNECTIONS (Cont'd)
OFFICE COMPUTER
(MIH RS485 INTERFACE CARD INSTALLED)
CONNECTING TO A HOST TERMINAL
Six Legend Plus units are used to monitor and
control parts packaging machines in a plant. The
Legend Plus units are located at each machine in
the production area of the building. A
communication line is run to an Industrial
computer located in the production office. The
drawing shows the line connection. Each
Legend Plus is programmed for a different
TO SERIAL PORI
ON COMPU ITH
COMM.
USH.INP.4 INH.
address and are all programmed for the same 3 SHIELD USE No
baud rate and parity as the computer (ex. 9600 > USR.INP.1
. = - . TI -
baud, parity even). An application program is A — | 0 oo |?
written to send and receive data from the units GER KEN €
using the proper commands.
COMM. COMM.
USH.INP.4 /INH. USR.INP. 4 /INEL
из USR.INF.3 USR.INP_3
> USR.INP.2 USR.INP.2
| = USR.INP.1 USR.INP.1
Sr а г А(+)/ хо —— +4 A(+)/10 5 =
Ga A B(--)/RXD —— | p т B(-)/RXD Fi
= 7 IX EN. TX EN. &
COMM. |e COMM.
USRINP.4/INH | & USR.INF.4/INH,
wn USK.INE. Sen USR.INF..5
3 USR.INP.2 | USR.INP.Z
о USR.INP.1 | USR.INP.1
> y » | At+)/TXD {00 * + — A(+)/1XD >
Sa 71 8(-)/0X0 )o —————— -—— $+— B(-)/RXD |?
“SEN Él meng 5) X EN. ë
LEGEND PLUS
я #2
LEGEND PLUS
AJOS. ye
LEGEND PLUS
ADD
ADOR. #8
-50-
TROUBLESHOOTING SERIAL COMMUNICATIONS
If problems are encountered when interfacing the Legend Plus(s) and host
devices or printers, the following check list can be used to help find a
solution.
1.
od 2
da
Cr
<>
0
Oo
Check all wiring. Refer to the previous application examples and use
them as a guide to check your serial communication wiring. Proper
polarity of all Legend Plus{s) and other peripherals must be observed.
Check RS232/RS485 configuration jumpers for properinterface selection.
. If the Legend Plus is connected to a "host computer”, device or printer
(other than the RI.C DMPC), check to make sure that the computer or
device is configured with the same communication format as the Legend
Plus. ‘The communication format that the legend Plus will accept is: 1
start bit, 7 or 8 data bits, no parliy or } parily bit (odd or even), and | stop
bit.
. Check the baud rate and parity in the Program Communication Module
and make sure all devices an the ne have the same baud rate and parity.
. Check the Legend Plus's unit address. If the Address command is not
used when transmitting a command to the T.cgend Plus. the Legend Plus 's
address must be set to D. Sec "Sending Commands á: Bala” for command
structure.
.iftwo-way communications are to be established between the Tegend Plus
and a computer. have the computer receive transmissions from the Legend
Plus first. Activating a User Input, programmed for ihe print request
function, will initiale transmissions from the Legend Plus.
. When sending commands to the Legend Plus, an asterisk *(2Ah) must
terminate the command. NO CARRIAGI RETURNS (0Dh) OR LINE
FEED (0Ah) CHARACTERS SHOULD BE SENT TO THE LEGEND
PLUS. Ifthey are sent, the Legend Plus will respond by transmitting an
"Е",
In multiple unit configurations, make sure each unit has a different address
other than zero. If a transmit value or print request command 1s issued,
an asterisk (*) must be sent before sending another transmission.
. In some RS485 applications, a twisted pair with a signal ground may be
needed to establish a ground reference. The signal ground 1s required 1f
the equipment does not have internal bias resistors connected to the
transceiver lines. The signal ground is connected [rom only one Legend
Plus to the equipment.
-51-
INSTALLATION & CONNECTIONS
Installation Environment
Before installing the Legend Plus into the panel, the user should first
become familiar with the unit. Also, it may be desirable to program the unit
and set the appropriate DIP switches for the application. When programming
1$ complete, all parameters will be saved in nonvolatile memory. The
Program Disable DIP switch used with an external User Input, programmed
for the program disable function, provides various levels of security to
prevent accidental or unauthorized programming changes. The Legend Plus
should be instalied in a location that does NOT exceed the maximum
operating temperature and provides good air circulation. Placing the unit
near devices that generate excessive heat should be avoided.
The bezel should be cleaned only with a soft cloth and neutral soap
product. Do NOT use solvents. Continuous exposure to direct sunlight may
accelerate the aging process of the bezel.
Do not use tools of any kind (screwdrivers, pens, pencils, etc.) to operate
the keypad of the unit.
Installation
The unit meets NEMA 4X/1P65 requirements for indoor
use, when properly installed. The units are intended to be
mounted into an enclosed panel with a gasket to provide a
water-tight seal. Two mounting clips and screws are
provided for easy installation. Consideration should be
given to the thickness of the panel. A panel that is too thin
may distort and not provide a water-tight seal, therefore the
recommended minimum panel thickness 1s 1/8" (3.2 mm).
The recommended clearance behind the panel for mounting
clip installation is 3.0" (6.45 cm) H x 4.0" (10.16 cm) W.
After the panel cut-out ts completed and deburred,
carefully apply the gasket to the panel. DO NOT APPLY
THE ADHESIVE SIDE OF THE GASKET TO THE
BEZEL. Insert the unit into the panel as depicted in the
drawing. Thread the screws into the clips until the pointed
end just protrudes through the other side. Install each
mounting clip by inserting the case tabs of the clip into the
holes, located on either side of the bezel.
Then snap the rear end of the clip into the case and slide
the clip towards the rear of the unit, locking it in place.
Tighten the screws evenly to apply uniform compression,
thus providing a water-tight seal.
Caution: Only minimum pressure is required to seal panel.
Do NOT over tighten screws.
EXISTING PANEL
125" —.25”
À
= nn |
GASKET
100” (7.54mm)
THICK
CASE TABS
MOUNTING CLIP
WITH SCREW
(2 PLACES)
EMC COMPLIANCE INSTALLATION
This unit complies with the Electromagnetic Compatibility (EMC)
standards listed in the specifications. Compliance to the EMC standards was
demonstrated by means of a test set-up using the following installation
methods:
|. Unit installed in a metal panel mounted to an open aluminum rack
connected to earth ground (protective earth).
2. Shielded (screened) cables for Signal and Control inputs, and solid state
outputs (01-06 SNK) with shield drain wire connected to earth ground at
the mounting panel only.
Multi-conductor Cable Function Used For
| Ведет #8451 - 2 conductor, #22 AWG
| twisted pair w/ foil shield and drain wire
Belden #8771 - 3 conductor, #22 AWG
with foil shield and drain wire
| Alpha #2404 - 4 conductor, #22 AWG
User Input 4/Inhibit
Input A, Input B, User Inputs 1,2 a
3, 01-06 SNK (solid state outputs) |
with foil shield and drain wire ‚ Не48Ы/НЗезе
3. EMI line filter (Corcom #1VB3) placed on the DC power supply when
DC powered.
Test: EN 61000-4-4 EFT and ENV 50141 RF Conducted Immunity.
4. Ground shield or ferrite suppression core (TDK #ZCAT3035-1330A)at
device end (opposite end from unit) on serial communication cable
eliminates serial transmission garble.
Test: RF Conducted Immunity per ENV 50141
It should be noted that the methods listed above may not be necessary for
every unit installation. For the purpose of EMC testing, every input and
output line on the unit Was connected with 25 feet (8 m) of cable. In
extremely high EMI environments, additional measures may be needed. The
unit becomes more immune to EMI with fewer I/O connections. Cable
length, routing and shield termination are very important and can mean the
difference between a successful or troublesome installation.
-53-
ADDITIONAL EMC INSTALLATION GUIDELINES
Although this unit 1s designed with a high degree of immunity to
ElectroMagnetic Interference (EMI), proper installation and wiring methods
must be followed to ensure compatibility in each application. The type of
the electrical noise, source or coupling method into the unit may be different
for various installations. Listed below are some additional EMC guidelines
for successful installation in an industrial environment,
1. Use shielded (screened) cables for all Signal and Control inputs. The
shicid (screen) pigtail connection should be made as short as possible.
The connection point for the shield depends somewhat upon the
application. Listed below are the recommended mcthods of connecting
the shield, in order of their effectiveness.
a. Connect the shield only at the pancl where the unit is mounted to earth
ground (protective earth).
b. Connect the shield to earth ground at both ends of the cable, usually
when the noise source frequency is above | MHz.
с. Connect the shield to common of the unit and leave the other end of the
shield unconnected and insulated from carth ground.
2. Never run Signal or Control cables in the same conduit or raceway with
AC power lines, conductors feeding motors, solenoids, SCR controls, and
heaters, etc. The cables should be run in metal conduit that is properly
grounded. This is especially useful in applications where cable runs are
long and portable two-way radios are used in close proximity or if the
installation is near a commercial radio transmitter.
3. Signal or Control cables within an enclosure should be routed as far away
as possible from contactors, control relays, transformers, and other noisy
components,
ADDITIONAL EMC INSTALLATION GUIDELINES (Cont'd)
4. In extremely high EMI environments, the use of external EMI suppression
devices, such as ferrite suppression cores, is effective. Install them on
Signal and Control cables as close to the unit as possible. Loop the cable
through the core several times or use multiple cores on each cable for
additional protection. Install line filters on the power input cable to the
unit to suppress power line interference. Install them near the power entry
point of the enclosure. The following EMI suppression devices (or
equivalent) are recommended:
Ferrite Suppression Cores for signal and control cables:
Fair-Rite # 0443167251 (RLC #FCOR0000)
TDK # ZCAT3035-1330A
Steward #28B2029-0A0
Line Filters for input power cables:
Schaffner # FN610-1/07 (RLC #LFIL0000)
Schaffner # FN670-1.8/07
Corcom #1VB3
Corcom #1VR3
Note: Reference manufacturer 's instructions when installing a line filter.
5. Long cable runs are more susceptible to EMI pickup than short cable runs.
Therefore, keep cable runs as short as possible.
6. Switching of inductive loads produces high EMI. Use of snubbers across
inductive loads suppresses EMI.
Snubbers:
RLC #SNUB0000
WIRING CONNECTIONS
The bottom board has a removable terminal block (TBA) where the solid
state outputs and the power connections are made. The top board has a
removable terminal block (TBB) where the signal inputs, User Inputs, and
serial communications connections are made. When wiring the unit, remove
the terminal block and use the numbers on the top label to identify the
position number with the proper function. All conductors should meet
voltage and current ratings for each terminal. Also cabling should conform
to appropriate standards of good installation, local codes and regulations. It
is recommended that power supplied to the unit (AC or DC) be protected by
a fuse or circuit breaker. Strip the wire, leaving approximately 1/4" bare wire
exposed (stranded wires should be tinned with solder). Insert the wire into
-54-
the terminal and tighten down the screw until the wire is clamped in tightly.
Each terminal can accept up to two 18-gauge wires. After the terminal block
is wired, install it in the proper location at the rear of the unit. Wire cach
terminal block in this manner.
USER INPUT WIRING
Programmable external user inputs are digital inputs that are active when
connected to TBC #3 Common. The use of shielded cable 1s recommended.
Follow the Additional EMC Installation Guidelines for shield connection.
A.C. POWER WIRING
The AC power is connected to the bottom left terminals TBA 1 & 2
marked AC PWR. The voltage selector switch, located at the side of the
unit, is used to select the proper voltage. The switch is a slide movement
type and can be set by using a small screwdriver. If the switch 1s toward the
front of the unit, it is set for 115 VAC input. If the switch 1s towards the
rear of the unit, it 1s set for 230 VAC input. The switch ts in the 230 VAC
position when shipped from the factory.
Note: Before applying power to the unit make sure the A.C. power switch is set
for the proper voltage setting.
To reduce the chance of noise spikes entering the AC line and affecting
the unit, the AC power should be relatively "clean" and within the specified
+10% variation limit. Connecting power from heavily loaded circuits or
circuits that also power loads that cycle on and off, (contactors, relays,
motors, etc.) should be avoided.
DC POWER WIRING
The DC power is connected to the bottom left terminals TBA 3 & 4
marked +12 VDC and common. The DC power source must be capable of
supplying the unit’s rated current (250 mA) and be within the specified
+20% variation limit. It is not necessary to provide battery backup to retain
programmable information. The Legend Plus has non-volatile memory and
information is stored on power down (Refer to block diagram).
SERIAL COMMUNICATIONS
Refer to the Serial Communications section of the manual, for wirtng and
operational procedures.
SIGNAL WIRING
INPUTSA EB
Input A and Input B have the same input circuitry and share the same
common. Input A and Input B each have separate DIP switches for setting
the type of signal input. A Magnetic Pickup or Logic Input signal can be
sent to either input. When a MAGNETIC PICKUP is used, the Sink/Source
DIP switch, for the appropriate input, must be in the "SRC" position or the
unit wiil not receive the signal. The H/LLO FRQ DIP switch affects the
maximum input frequency at that input.
The Input schematic shows the details of Input A and Input B circuitry.
Each input has three DIP switches associated with its input. The functions
of these switches arc as follows:
INPUT A
SW1 - MAG: Sets input for a Magnetic Pickup signal.
Sensitivity: 200 mV peak: hysterests: 100 mV
LOGIC: Sets input for a Logic signal.
Input trigger levels: Vir = 1,5 V max: Viy = 3.75V max.
Note: SW?2 must be in the "SRC" position for a Magnetic Pirkup signal.
SW2 SNK: Provides a 7.8 K£2 internal pull-up resister for sensors with
current sinking outputs,
SRC: Provides a 3.9 K€ internal pull-down resistor tor sensors wiih
current sourcing outputs.
SW3 - 11 FRQ: Removes damping capacitor and allows operation up to
the max. frequency.
LO FRQ: Connects damping capacitor for switch contact debounce.
Limits count speed to S0cps max. Min. count pulse ON or OFF
time ts [Omsec,
Note: The HILO FRQ selection switch must be set on "LO FRO" when switch
contacts are used to generate count input signals. The "ГО ЕКО" mode
provides very high immunity against electrical noise pickup. It is
recommended that this mode also be used, whenever possible, with electronic
sensor outputs. The "LO FRQ" mode can be used with any type of sensor
output, provided count pulse widths never decrease below 10msec, and the
count rate frequency does not exceed 50 Hz.
+12V +5
MN
INPUT A > PS y >
SECO” LO
SNK. rro. |! ;
IRQ. cone > 150K 4 SW
Spd i {
C | MAC,
pig - : Hoc
@ e : + | + + + !
— 117 +5V
$ A
> | 2
$ sur : $ UK So
A у LGU s
ot A e MN»
i - i
: 5. ЭК LN
INPUT в | e To . :
E. ; i . A »* > |
A Er "a ; |
~ | i ; У
; | ЗК ere | |
i ; mio :
i * : Ci ;
| Sow A ws Х Sy |
i À Lys | SWE A AN ; < К
| SECO! LO | |
SNK HI ]
: | FRA > SK
| | | “| OGIC
INPUT B
SW4 - Same as SW
SWS - Same as SW2
Note: SW5 must be in the "SRC" position
Jor a Magnetic Pickup signal.
SW6 - Same as SW3
Note: A Magnetic Pickup type sensor should not be used unless a large enough
signal is provided at all speeds of operation.
DIP SWITCH SET-UP
The DIP switches are accessible through the side of the Legend Plus. The
DIP switch positions and their functions are shown below:
INPUT A INPUT B INPUT B
SW3 SW4 SW5
a > ‚ >”
FREQ. | Mac. фокс
HI | LOGIC | SNK
FREQ.
INPUT A | A
SWZ SWE
À SRC I _ LO
— — — FRFQ
| SNK HI
TREQ.
|
{ LOGIC
Ea
| ВВВОРНЕ|
Ш
JEU
|| POB
-56-
VARIOUS SENSOR OUTPUT CONNECTIONS (See Note 1)
COUNT SWITCH OR ISOLATED TRANSISTOR OUTPUTS OLDER STYLE SENSORS WITH E-F SENSORS WITH CURRENT SINK SENSORS WITH CURRENT
CURRENT SOURCE CONNECTED CURRENT SINK CONNECTED OUTPUT-CURRENT SRC CONN. OPEN COLLECTOR (NPN O.C)) SOURCE OUTPUT (PNP O.C.)
(COUNT ON OPENING) (COUNT ON CLOSING) (COUNT ON FALLING EDGE) (COUNT ON TURN-ON) (COUNT ON TURN-OFF)
o y с © < mM o <m
r . г . _— 2. FF re
=59 =ua > >6 9 >59 =59
A 17
uns un was any i]
| Oy — Oy A o
Ox T oz" - CE x {На SE |
о о SENSOR on BT De a
м WITH bl
+5V * т * -
* SEE EMITTER SEE | Хон, В SEE |
5 NOTE2 (12 3 FOLLOWER NOTE 2 12345 NOTE 2
ро SEE NOTE 4 FOR INPUT Пн OUTPUT р
r o LOTT To ;
x e = VOLTAGES GREATER x Oss To 33
A 2009 THAN +12V. n >33 а > бо
NOG NGG NOOO
OU Jr Jn
<+ < + < +
RLC SENSOR MODELS: MPS & PR & RR PHOTO-ELECTRICS RLC SENSOR MODELS: LMP-EC, 715 RLC SENSOR MODELS: ASTC, LMPC, LSC,
PSAC, RPGB, RPGC, RPGH, MRZS
2-WIRE PROXIMITY SENSORS MAGNETIC PICKUPS A.C. INPUTS FROM INVERTERS, INTERFACING WITH CMOS [INTERFACING WITH TTL
CURRENT SOURCE CONNECTED TACH. GENERATORS, ETC. CIRCUITRY (B TYPE) G
(COUNT ON CURRENT FALL) с <m LE
Es vo
e 3 >.
<ro 496 PT
= 1 Æ ZO
G <m A [173 a Ш a
E OA Na —
J 53 I> с) Ha
359 259 iu — GX
нео) [23 5 ; sr
A IMACNETIC doc (se La
GET E Peor © К SIGNAL | Note 2 DES
rl Nue | — Y i. т |
er NOTE 3 RESISTOR TO [MIT x
- =
CURRENT TO 2.5mA Note dr À
OTE: | NOTE: CIR-
MAXIMUM EXTERNAL O - CUIT SHOWN
SUPPLYIS < FOR STD. TTL
A.C. SIGNALS OVER 50VAC PEAK SHOULD USED TO POWER CMOS CIRCUIT | OUTPUT. TTL CIRCUITS ARE AVAILABLE
BE ISOLATED BY A STEP DOWN VOLTAGE MUST BE > DC OUT W/OPEN COLLECTOR QUTPUTS ELIMIN-
TRANSFORMER. VOLTAGE ATING NEED FOR DIODE CLAMP.
-57-
NOTES:
—
nd
. SENSOR VOLTAGE AND CURRENT
The +12 VDC (in/out) terminal can supply voltage to a sensor within a
+25% variation, due to line and internal load variations. All RLC sensors
will accommodate this variation.
. HILO FRQ SELECTION
The HI/LO FRQ selection switch must be set on "LO FRQ” when switch
contacts are used to generate count input signals. The "LO FRQ" mode
also provides very high immunity against electrical noisc pickup. It is
recommended that this mode also be used, when possible, with electronic
sensor outputs. The "LO FRQ" mode can be used with any type of sensor
output, provided count pulse widths never decrease below 10 msec, and
the count rate frequency does not exceed 50 cps.
. When shielded cable is used, the shield should be connected to "COMM."
at the unit and left disconnected at the sensor end.
. Inputs A and B can accept source pulses from other circuits up to +28 V
tn amplitude. For voltages above +28 V, a limiting resistor and zener
diode should be used to limit the voltage at the input.
-58-
SPECIFICATIONS & DIMENSIONS
1. DISPLAY: 2X8, 0.3" (7mm) high characters, negative image
transmissive LCD, with Single (green or red) or Dual Color (green and
red) LED backlighting,
. POWER:
AC Operation: 115/230 VAC £10%, 50/60 Hz, 10 VA, switch selectable.
DC Operation: +12 VDC £20% @ 250 mA. max.
. MEMORY: Non-volatile memory retains all programming information.
Count and Preset values are written to non-volatile memory when power
is interrupted. All other programming parameters are Written to memory
when programming mode is exited. If power is removed while in the
programming menu's, the parameters are restored to previously saved
settings.
Data Retention: 10 years minimum
Message/Mnemonics Memory: 804 bytes available (with factory
settings loaded).
. SENSOR POWER: +12 VDC +25% @ 100 mA.
5. INPUTS A and B: DIP Switch selectable to accept count pulses from a
variety of sources including switch contacts, outputs from CMOS or TTL
circuits, and all standard RLC sensors.
LOGIC: Input trigger levels Vir = 1.5 Vmax; Vin = 3.75 У мм.
Current sinking: Internal 7.8 KQ pulled up to +12 VDC | Imax = 1.9
mA.
Current sourcing: Internal 3.9 KC pull-down, 7.3 mA @ 28 VDCumax.
Debounce: Damping capacitor provided for switch contact bounce.
Limits count speed to 50 Hz and input pulse widths to 10 msec
minimum.
MAGNETIC PICKUP:
Sensitivity: 200 mV peak.
Hysteresis: 100 mV.
Input impedance: 3.9 KQ @ 60 Hz.
Maximum input voltage: +50 Vp
Note: For magnetic pickup input, the sink/source DIP switch must be
in the SRC position.
6. RATE ACCURACY: +0.01%.
7. RATE MINIMUM INPUT FREQUENCY: 0.01 Hz.
DIMENSIONS In inches (mm)
Note: Recommended minimum clearance {behind the panel) for mounting clip installation is 3.0" (76.2)H x 4.0" (101.6)W.
PANEL CUT-OUT
FT UT \ то оп ——— sa re т Ne 0 —
a o heosnnd E
1567 RPM | | || (| e ou |
= E (74.9) с 3 6 — 7 2.08
Е = = Е: О | (= = ес) ©
115 МАС 73D YAC
50/60 HE, 10 |
(60) | MEFOA TT nn
| ® + 4 а a LL
Lu. o LA
_ ВЫ ; fos 15 56 8)
-—2.95 (74.9) — 0.13. —
(3.8)
— 5.87 (1491)—— -——- -—
-59-
SPECIFICATIONS & DIMENSIONS
8. MAXIMUM COUNT RATE IN KHz:
MODEL CNT + DIR QUAD ADD/ADD ! ADD/SUB
X1 X2 X1 X2 X4 X1* X1*
LGPM (Multi) 13 6 6 5 2.5 12 6
Notes:
I. Maximum count rates given are for counter set for Auto reset with the
auto cycle preset set to an equivalent of 100 count pulses or greater. With
auto cycle presets less than 100 counts the maximum count rates may be
lower. The actual Preset value for 100 count pulses, with Count SF =
0.5000 and Count Scale Multiplier = X1, would be 50.
2. Maximum count rate given for X2 and X4 count modes are given for 50%
duty cycle signals and Quad signals with 90° phase shift.
- Inputs A and B count rates summed.
9. MAXIMUM COUNT CAPACITY:
Count: 9 digits internal (non-scaled),
6 digits displayable (scaled).
10. CONTROL INPUTS:
Programmable User Inputs (4):
USR INP 1 to 3: Internal 10 KQ pull-up to +5 VDC, Vi. = 1.0 Vmax;
Vin = 4.0 VMIN, Vmax = 30 VDC, response time = 30 msec typical, 100
msec max. (count rate dependent).
USR INP 4/INH: Internal 10 KO pull-up to +5 VDC, Vii. = 1.5 VMAX:
ViH = 3.0 VMIN,, Vmax = 30 VDC, response time = 30 msec typical, 100
msec max. (count rate dependent).
INHIBIT Response time = 50 psec max.
User Inputs Programmed for Binary Message Request: Debounce =
100 msec. (Binary Message Request Inputs must be stable for 100 msec.
before a message is requested).
11. SERTAL COMMUNICATIONS:
Type: Jumper selectable RS-485 or RS-232.
Can connect up to 32 units when using RS485 interface,
Baud Rate: Programmable from 1200 to 9600.
Maximum Addresses: Programmable from 00 to 99. (Actual number on
a line 1s limited by hardware specifications)
Transmit Delay: Programmable for 0.002 or 0.100 second.
-60-
Data Format: 10 Bit Frame; 1 start bit, 7 or 8 data bits, 1 or no parity bit,
and 1 stop bit. Parity is programmable for either ODD (7 data bits), EVEN
(7 data bits), or NO Parity (8 data bits).
12. OUTPUT(S):
Solid-State: Current sinking NPN open collector transistor.
Усв = 1.1 VsaT (9 100 mA max. Von = 30 YDC max. (Internal Zener
Diode Protection).
Programmable Timed Output(s): Programmable time ranges from 0.01
to 99.99 seconds, +0.05% - 11 msec. max.
Output Time Required to Request Message: 50 msec.
Count Boundary Output Response Time: 10 msec. nominal
13. ENVIRONMENTAL CONDITIONS:
Operating Temperature: 0 to 50°C
Storage Temperature: -40 to 70°C
Operating and Storage Humidity: 85% max .relative humidity
(non-condensing) from 0°C to 50°C.
Altitude: Up to 2000 meters
14. CERTIFICATIONS AND COMPLIANCES:
EMC EMISSIONS:
Meets EN 50081-2: Industrial Environment.
CISPR 11 Radiated and conducted emissions
EMC IMMUNITY:
Meets EN 50082-2: Industrial Environment.
ENV 50140 - Radio-frequency radiated electromagnetic field
ENV 50141 - Radio-frequency conducted electromagnetic field lg?
EN 61000-4-2 - Electrostatic discharge (ESD)
EN 61000-4-4 - Electrical fast transient/burst (EFT)
Notes:
!. Unit required an EMI line filter (Corcom #1VB3) when DC powered.
2. Ground shield or ferrite suppression core (TDK # ZCAT3035-1330A)
at device end (opposite end from unit) on serial communication
cable eliminates serial transmission garble.
Refer to EMC Compliance Installation for additional information
15. CONSTRUCTION: High impact plastic case with clear viewing
window. This unit is rated for NEMA 4X/IP65 indoor use. Installation
Category II, Pollution Degree 2. Panel gasket and mounting clips
included.
16. WEIGHT: 1.5 Ibs. (0.68 Kg)
TROUBLESHOOTING GUIDE
For further technical assistance, contact technical support at the numbers listed
on the back cover of the instruction manual.
PROBLEMS POSSIBLE CAUSE REMEDIES
NO DISPLAY 1. Power off 1. Verify power.
2. Improperly wired 2. Check wiring,
3. Voltage selector switch in the wrong position. 3. Check switch position.
4. Power in a Brown out condition 4. Verify voltage reading.
5. If powered by +12 VDC source, not enough current |5. Verify Source current rating.
to drive Legend Plus.
6. Blank message requested. 6. Check message, Output message request User Input
programrning.
7. Mnemonics/Display not programmed properly. 7. Check Display programming,
CHECKSUM 1. Data error detected by processor. 1. Press "ENT" key.
ERROR 1 OR 2 ON DISPLAY a. Check all programming parameters.
2. Check signal lines for possible noise sources.
UNIT DOES NOT COUNT 1. No input signal. 1. Check sensor connections.
a. Verify power to sensor.
2. Type of input signal incorrectly selected. 2. Check DIP switch setting on side of unit.
3. Count Inhibited. 3. Disable Count Inhibit.
4. Scale factor and/or multiplier value too small. 4. Check scale factor value and scale multiplier values.
UNIT WILL NOT ACCEPT THE 1. When a count scale factor greater than 1 is used, the | 1. Unit automatically adjusts preset to be evenly
DESIRED PRESET preset value must be evenly divisible by the scale| divisible by the scale factor.
factor.
UNIT COUNTS INCORRECTLY |. Input signal type incorrectly selected. |. Check DIP switches. Set HI/LO FRQ. switch to LO
for a count speed of less than 50 Hz.
2. Inputs improperly connected. 2. Check sensor input connections.
3. Electrical noise interference. 3. Check power source for noise.
a. Check signal wire routing.
4. Incorrect counting mode. 4. Verify programming in "Program Cntr Module".
5. Scale factor incorrect. 5. Verify scale factor value.
-61-
TROUBLESHOOTING GUIDE (Cont'd)
PROBLEMS a nn
POSSIBLE CA USE
REMEDIES
COUNT, PEAK, OR VAL LEY
VALUES WILL NOT RESET WHEN
A MANUAL, RESET IS PERFORMED
I. User Input NOT properly programmed.
1. Verify programming in "Program User Module".
CAN NOT ENTER INTO
PROGRAMMING MENUS
1. Front panel disabled.
|. Check "Front Panel Accessible Fun Functions With:
_ Program Disable" section in manual.
PRESETS, COUNTER LOAD, OR
SCALE FACTORS CAN BE VIEWED
BUT NOT CHANGED
i. Е ront panel disabled.
|. Verify programming in “Program Options Module":
sub-menu Operator Access.
2. Check " Front Panel Accessible Functions With
_ Program Disable” section of manual. _
UNT Г COUN’ rs WHILE RESET
IS ACTIVATED
PRESET OR COUNTER LOAD VALUE
LOADS SMALLER NUMBER THAN
WHAT 1S ENTERED |
1. User Input Reset mode set for Momentary reset.
1. Program User Input to a Maintained reset.
. Entered number exceeds internal count capacity
"(Seals multiplier/Scale factor too small).
OUTPUT WILL NOT RESET
1. Output assigned to wrong display (Count or Rate).
2. Reset with count disabled (Program Outputs
Module).
3. User Input NOT properly programmed.
1. Check scaling. Reduce number of pulses per unit of
measure.
1. Verify | programming in "Program Outputs Module".
2. Verify programming in "Program Outputs Module".
3. Verify programming in "Program User Module”. |
-62-
TROUBLESHOOTING GUIDE (Cont'd)
PROBLEMS
POSSIBLE CAUSE
NO RATE INDICATION
1.
No signal at Input A.
2. Type of input signal selected incorrectly.
3.
Rate Scale factor and/or Rate Scale Multiplier too
small,
INCORRECT RATE READING
. Input signal type incorrectly selected.
. Inputs improperly connected.
. Electrical noise interference.
. Scale factor incorrect.
. Rate input signal too high of a frequency.
RATE DISPLAY FLASHING OVERFLOW
. Rate Scale Factor, Multiplier and/or Conversion
Factor values too large.
. Minimum update time set too high for input rate. See
Note in “Programming Rate" Section.
-63-
| REMEDIES
1
rt
1
. Check sensor connections.
4.
5. Verify input signal. i
. Check values.
a. Venfy power to sensor.
. Check DIP switch setting on side of unit.
. Check scale factor value and scale multiplier values.
. Check DIP switches. Set HI/LO FRQ. switch to LO
for a count speed of less than 50 Hz.
. Check sensor input connections.
. Check power source for noise.
a. Check signal wire routing.
Verily scale factor value.
APPENDIX "A" - SCALING FOR COUNT INDICATION
SCALING FOR COUNT INDICATION
The Legend Plus is factory set to provide | count on the display for each
pulse that is input to the unit. In many applications, there is not a one to onc
correspondence between input pulses and display units. In these
applications it is necessary for the Legend Plus to scale or multiply the input
pulses by a scaling factor to achieve the proper display units desired (feet,
meters, gallons, etc.). The Count Scale Factor, the Count Scale Multiplier,
and the Number of Count Edges are used in scaling the input pulses to the
desired reading. The number of count edges is determined in the Program
Counter Module. For example, the number of edges for the CNT+DIRX1
mode is one and the QUAD X4 mode is four. All three are factored together
to provide the Scaling necessary for the Process display. The Count Scale
Factor and Scale Multiplier are programmed 1n the Program Scaling section.
The first step in scalng requires the Number of Pulses per Display Units
to be obtained. This may require a small amount of deductive reasoning.
Example: A 48-tooth gear is mounted to a 2 ft circumference feed roll in a
paper processing plant. [It is desired to display the footage of paper
processed per day. In this example, the display units are in feet. A sensor
sensing the gear teeth provides 48 pulses for each revolution of the feed
roll. Each revolution equates to a linear distance of 2 feet. The number
of Display Units desired is 2. The Number of Pulses per Display Units is
48. When the number of Display Units and the Number of Pulses have
been obtained, the Total Scaling can be caiculated.
The Total Scaling, denoted as "KT", ts simply the total amount of
scaling required for the Process. It is obtained by dividing the Display
Units by the Number of Pulses as shown in Formula #1 below.
FORMULA #1: Kr = Display Units + Number of Pulses
WHERE:
Kr = Total Scaling.
Display Units = The number of desired units (revolutions, feet, 10ths
of feet, meters, etc.) that would be acquired after
the Number of Pulses has occurred.
Number of Pulses = The Number of pulses required to achieve the
number of Display Units.
-64-
For the preceding example, the Total Scaling, "Kr", is calculated by
plugging in 2 and 48 in the formula:
KT = 2 — 48 = 0.041667
As previously stated, the Total Scaling, "KT", is the combination of the
Count Scale Factor, Scale Multiplier, and Number of Count edges. In many
applications the Total Scaling, "Kt", can be programmed directly into the
Count Scale Factor, “SF”, in which case the Scale Multiplier and Number
of Count Edges can be left at the factory settings of X1.
In some applications, more display resolution may be required. When the
Total Scaling (KT) 1s greater than 1.0000 and only one edge per count pulse
is used, there may not be enough display resolution.
Example: With a Total Scaling of 2.000, when an input pulse is generated,
the display increments by 2. If the display units are in feet, when 3 feet
have gone by, the display still reads 2. It will not increment again until
4 feet have been accumulated. With this amount of display resolution it
would be impossible to set the Preset and have the output respond at odd
feet intervals (I, 3, 5, etc.). To Increase resolution, the Number of Count
cdges must be increased. This can be achieved by selecting the
CT+DIRX2 mode (Count plus direction times 2) in the Program Count
Module or by selecting the QUAD X4 mode, if quadrature counting is
being used. If enough resolution still has not been attained, more input
pulses need to be generated per display unit.
The amount of resolution required varies depending on the particular
application. In cut-to-length applications, a high amount of resolution is
often necessary. However, in totalizing applications, display resolution
may not be important. Ii should be noted that whencver the number of
count edges 1s increased to 2 or 4, the maximum count frequency
decreases. (Sec Specifications for maxtmum count frequency).
Note: When using 2 or 4 edge counting for length sensor, on/off duty cycle must
be 50% to maintain max. accuracy (mag. pickup will not work).
Once the Number of Count Edges (NCE) to be used has been determined,
the Remaining Scaling factor required, "Kr", can be calculated. This is the
Total Scaling, "Kt", divided by the Number of Count edges used as shown
in Formula #2:
FORMULA #2: Kr =Kr + NCE
WHERE:
Kr = Remaining Scaling Factor.
KT = Total Scaling.
NCE = Number of Count Fdges.
In our original example, the Total Scaling, "KT" Was determined to be
0.041667. Since this value is less than one, sufficient pulse information 1s
betng generated, 1.e., there is enough resolution for the units selected. The
Number of Count edges can be left at the factory set value of X1. The Total
Scaling, "KT", therefore equals the Remaining Scaling Factor, "Kr".
Kr = 0.041667 — 1 = 0.041667
If the remaining scaling is between 0.6000 and 5.9999, it can be
programmed directly into the Count Scale Factor value and the XI factory
setting for the Count Scale Multiplier "SCM", can be used.
COUNT SCALE MULTIPLIER
The general rule for choosing a SCM value is, when the Remaining
Scaling Factor, "KR", 1s less than 0.6000, a SCM value of 0.] or 0.01 can be
used to get a Count Scale Factor value between 0.6 and 5.9999 or to the point
where the maximum number of significant digits 1s obtained.
FORMULA #3: SF =Kg + SCM
WHERE:
SF = Count Scale Factor.
KRr = Remaining Scaling Factor.
SCM = Count Scale Multiplier.
-65-
Following our continuing example, it is easy to see that the Remaining
Scaling Factor, "Kr" (0.041667), cannot fit into the Count Scale Factor
Value without losing significant digits. Using the Formula above and a
Scale Multiplier value of 0.01 allows us to get the maximum number of
significant digits possible for the Count Scale Factor value:
SF = Kr + SCM = 0.041667 + 0.01 = 4.1667
COUNTER SCALING EXAMPLE:
EXAMPLE #1:
A flow sensor provides 62 pulses per gallon. Calculate the scaling
required to provide a display reading in gallons. The number of "Display
Units" displayed after 62 pulses have been counted should be 1.
STEP 1 - Calculate the Total Scaling, "Kt", using Formula #1.
FORMULA #1:
Kt = Display Units + Number of Pulses = 1 + 62 = 0.016129
STEP 2 - In this application 62 pulses per gallon provides more than enough
resolution, so the Number of Count Edges (Selected in the Program
Counter Module) 1s set to a value of X1. With an "NCE" value of 1, the
remaining scaling factor required is still 0.016129.
FORMULA #2
Кк = Кт + NCE = 0.016129 + 1 = 0.016129
STEP 3 - To provide maximum scaling accuracy, a Scale Multiplier value
1s chosen that will give the maximum amount of significant digits in the
Count Scale Factor. A value of 0.01 results in a Count Scale Factor Value
of 1.6129.
FORMULA #3
SF=Kr+SCM=0.016129 + 0.01 = 1.6129
COUNTER SCALING EXAMPLE: (Cont'd)
EXAMPLE #2:
A quadrature Rotary Pulse Generator that provides 100 pulses per
revolution is coupled to a feed roll that is 2.5 feet in circumference. It is
desired to read in feet with display resolution to the nearest hundredth of
feet (0.01).
In this application, the requirement is for the display to read in hundredths
of a foot. A 2.5 fi. distance equates to 250 "Display Units" (hundredths).
The "Number of Pulses” for 2.5 ft. is 100, as stated.
From the information obtained, the Total Scaling, "KT", can be calculated,
using Formula #1.
KT = Display Units + Number of Pulses = 250 —100 = 2.5
With a Total Scaling, "Kr", of 2.5, it can easily be seen that for every
pulse that is input, the display increments by 2.5 display units (hundredths).
The application requires resolution to the nearest hundredth of a foot. To
get higher resolution, Quadrature X4 Input Response Mode is selected. This
provides four times the resolution. Using Formula #2, and 4 for the "Number
of Count Edges”, the Remaining Scaling, "Kr", is calculated.
Kr = KT = Number of Count Edges = 2.5 — 4 = 0.625
At this point, it can be seen that the Remaining Scaling Factor value of
0.625 fits into the Count Scale Factor value range without losing any
significant digits or scaling it any further. Because of this, the Scale
Multiplier (SCM) factory set value of X1 is used, and 0.6250 is programmed
directly in for the Count Scale Factor, "SF",
SF = Кв = SCM = 0.6250 + 1 = 0.6250
-66-
APPENDIX "B"- SCALING FOR RATE INDICATION
The Legend Plus offers a simplified method for scaling the rate portion
of the indicator. The method does not require time unit conversions. The
desired time format (Rate Per Second, Rate Per Minute, Rate Per Hour) is
simply selected as part of ihe programming procedure. Due to the way the
rate is calculated (See "General Description” section), high resolution and
accuracy can be realized at all input rates, slow or fast.
Note: It is not necessary to increase the pulse information to obtain higher
resolution.
The Rate Minimum Update Time can be programmed from 0.1 up to 99.9
seconds to provide averaging in applications where the Input pulse spacing
is not stable. The Update time selected, however, will not affect the scaling
in any manner.
Scaling the Rate channel involves programming the Legend Plus so that
input pulses io the unit are scaled to the desired display vaits (revolutions,
feet, meters, etc.) and in the desired time format (Rate Per Second. Rate per
Minute. Rate Per Hour).
If the rate indicator is to display the rate at which the counter is counting.
the rate indicator can be programmed with the same scaling parameters as
the counter. The only other requirement is that the desired "Rate Conversion
Factor” be selected to provide the rate display in the desired time format,
Rate per Second (X1), Rate per Minute (X60), or Rate per Hour (X3600).
This automatically scales the rate by X1 (1 pulse per second), X60 (60 pulses
per minute), or X3600 (3600 pulses per hour).
Note: The rate uses only the negative edge of the pulse at Input A. The counter
uses both edges of the input pulse for a X2 or X4 count mode. The rate can
show the sume reading as the count, but take into consideration the counter
mode selected.
If the rate application 1s to display a specific Display Unit, then to scale
the rate, it is only necessary to know the number of pulses per display unit
desired or units (feet, revolutions, etc.).
Example: A 48-tooth gear, which is coupled to a shaft, 1s being sensed and
it is desired to indicate the shaft speed in revolutions, the display units
will be in revolutions. It is obvious that 48 puises will occur in one
revolution. To convert the pulse units to revolutions, it is necessary for
the Legend Plus to multiply the number of pulses by a scaling factor to
-67-
convert the pulse units to revolution units. The Legend Plus has a Rate
Scale Factor anda Rate Scale Multiplier to scale pulse units to the desired
display units. They arc programmed in the Program Scaling section.
Both are used to attain the Total Scaling, "Kt". To calculate the Total
Scaling, "Kr", for the application, the following formula is used.
FORMULA #1: Kr = Display units + Number of pulses
WHERE:
Kr = Total Scaling.
Display Units = The number of desired units (revolutions, feet, 10ths
of feet, meters, etc.) that would be acquired after
the Number of Pulses has occurred.
Number of Pulses = The Number of pulses required to achieve the
number of Display Units.
Using the example previously discussed, the desired display unit would
be 1 revolution and the number of pulses per display unit would be 48.
Therefore. the Total Scaling wouid be 0.020833,
Ky =1rev = 48 pulses per rev = 0.020833
In many applications the Total Scaling, "K1". can be programmed directly
into the Rate Scale Factor, "SF", in which case the Scale Multiplier "SCM™
can be Jeft at the factory setting of X1. However, in some applications, such
as the one above, it may be desired to obtain more significant digits in the
Scale Factor. "Si".
These situations occur when "Kyr” does not calculate to an even number
that will fit into the four decimal places available to the Scale Factor. The
following formula can be used to calculate the Scale Factor when an SCM
value other than X11 1s needed.
FORMULA #2: SF = KT + SCM
WHERE:
SF = Rate Scale Factor.
Kt = Total Scaling.
SCM = Rate Scale Multiplier.
In this formula, the Total Scaling, previously calculated, is divided by the
Scale Multiplier Value, "SCM", to obtain the Scale Factor, "SF",
RATE SCALE MULTIPLIER
The general rule for choosing an SCM value is, when the Total Scaling,
"KT", is less than 0.6000, an SCM value of 0.1 or 0.01 can be used to get a
Scale Factor value between 0.6 and 5.9999, or to the point where the
maximum number of significant digits is obtained. If the Total Scaling,
"KT", is greater than 5.9999, then an SCM value of 10, 100, or 1000 can be
used to obtain a Scale Factor Value between 0.6 and 5.9999.
In our initial example, the Total Scaling, "K1" was determined to be
0.020833. It 1s casy to see that this number cannot be programmed into the
Scale Factor, "SF", without losing significant digits. Using formula #2 and
the general rules stated above, a Scale Multiplier Value of 0.01 is chosen
and the Scale Factor 1s calculated as shown below. This will provide the
maximum amount of conversion accuracy possible.
KT — SCM = 0.020833 + 0.01 = 2.0833
In situations where the Total Scaling is already in range of the Scale
Factor (0.0001 to 5.9999) and when there are no significant digits that are
lost, the Total Scaling, "Kr", can be programmed directly into the Scale
Factor Value and a Scale Multiplier value of X1 (the factory set value) can
be used.
Example: If the desired display units are 1n feet and there are 100 pulses per
foot, the Total Scaling, "Kr", would be 0.01.
Kt = Display units + number of pulses = | + 100 = 0.01
Since the Total Scaling, "Ky", is exactly 0.01, it can be programmed into
the Scale Factor Value, "SF", and the Scale Multiplier Value, "SCM", can
be left at its factory setting of X1. After the Scale Factor and Scale
Multiplier values are selected, all that is necessary to complete the scaling
is to choose the Rate Conversion Factor. The Rate Conversion Factor (RCFE)
can be selected to provide indication in Rate per Second (X1), Rate Per
Minute (X60), or Rate per Hour (X3600).
There may be situations where there are many more pulses per display
unit than needed. In these situations the minimum SCM value (0.01) may
not provide enough significant digits in the Scale Factor. To achieve more
significant digits, the Rate Conversion Factor should be set to Rate per
Second and the following formula be used.
SF = KT x RCF + SCM
-68-
WHERE:
RCF = 60 for display reading in Rate Per Minute or 3600 for display
reading in Rate Per Hour
RATE SCALING EXAMPLE:
EXAMPLE #1:
A 60-tooth gear is mounted to a roll that has a circumference of 2 feet. It
1s desired to have a rate readout with a resolution in 10ths of feet per minute.
Calculate the Scale Factor and Scale Multiplier values necessary to provide
the desired readout.
In this example one revolution of the web will provide 60 pulses for 2 feet
of linear travel. Since the desired display units are to be in tenths of feet, it
1s necessary to convert 2 feet to tenths (2 +1 = 20), giving us 20 tenths
(display units). The Total Scaling, "Kr", is calculated by simply plugging
in the two numbers into Formula #1.
Ky = Display Units + Number of Pulses = 20 + 60 = 0.333333
To get the maximum number of significant digits in the Scale Factor we
use formula #2 and a Scale Multiplier value of 0.1 as shown below.
SF = KT + SCM = 0.333333 = 0.1 = 3.3333
To obtain rate indication in Feet Per Minute, the Rate Conversion actor
is programmed for the Rate per Minute mode. À decimal point is
programmed to 0.0, which allows the unit to display in 10ths of feet.
EXAMPLE #2:
The shaft of a positive displacement pump has a 14 tooth sprocket that is
being sensed by a magnetic pickup. It is known that the unit pumps 810
liters of water per minute, when the shaft is turning 400 RPM. It is desired
to have a display readout in liters per minute.
With the Legend Plus, it is not necessary to deal with time unit
conversions. From the information given, we know that when the shaft has
turned 400 revolutions, 810 liters of water will have been pumped. The first
step we need to take is to calculate the number of pulses that occur when
810 liters have been pumped.
Number of Pulses = # of Rev x Pulses per Rev
= 400 Rev x 14 PPR = 5600 pulses.
We now have all the information necessary to scale the rate. The Total
Scaling, "Kt", is calculated using Formula #1 as shown below.
Kr = Display Units + Number of Pulses = 810 — 5600 = 0.144643
It is noticed that there are more significant digits in the Total Scaling,
"Kt", than there are available for the Scale Factor, "SF". To acquire the
maximum amount of significant digits for the Scale Factor, Formula #2 is
used and a Scale Multiplier value of 0.1 1s selected.
SF = Kt + SCM = 0.144643 + 0.1 = 1.4464
The Scale Factor, "SF", equals 1.4464 (1.44643 rounded to 4 decimal
places). This provides the maximum amount of conversion accuracy
possible.
The final step is to select a Rate Conversion Factor. The Rate Conversion
Factor is chosen to be Rate Per Minute as was required.
-69-
APPENDIX "C" APPLICATION
A textile manufacturing company uses three
Ink jets to mark cloth at various locations. They
need a counter to track the cloth measurement
and provide outputs to the ink jets at
predetermined points. They also require
displayed messages to inform their operators of
changing line speed conditions and corrective
actions that need to be taken. With its ability to
monitor rate, count, provide multi-preset
outputs and display user programmed messages,
the Legend Plus Multi-preset counter is the best
The cloth moves over a
roller with a circumference of
13.20 inches. A 72 tooth gear
is mounted on the roller. Due
to the size of the gear, the best
sensor would be the model
HESS. The desired display on
the LGPM is tenths of inches.
H is also desired to display a
rate of tenths of inches per
minute. With the Legend
Plus, the scaling for the rate 1s
the same as for the counter.
WHITE
= R5-485/RS-237
$ TPA
<a Era TES Outputs One through Three are programmed to the
mrs zzzN8 2 : . o
55 vero TTU count display and will fire the ink jets at the appropriate
SHALL . .
ZZ03555598F intervals. The outputs are programmed for a Timed
12345878810 output. Outputs Four through Six are assigned to the rate
display and will be programmed to request messages to
appear on the display when the listed event occurs:
в Output 4 - Speed up Line #4
TE IS EEZEEL Output 5 - Slow down Line #4
<u N Santos Output 6 - Overspd STOP! (Top Priority)
1234587891011 a .
The following is a chart of the necessary programming
= as entered into the Legend Plus unit.
©) 15|
Fm 5
с)
A
L To DC
POWER
e e + + e SOURCE
LL 1, Ii L LL Ll SI L +
TO TO TO TO TO TO
RELAY #1 RELAY #2 RELAY #3 RELAY #4 RELAY #5 RELAY #6
FROM FROM FROM FROM FROM FROM
RELAY #1 RELAY #2 RELAY #3 RELAY #4 RELAY #5 RELAY #6
— — —— — tr pS
Blue Yellow Red Green Light Yellow Light Red Light
Ink Jet Ink Jet Ink Jet Messoge #2 Message #3 Message #4
-70-
SCALE FACTORS RATE
COUNT SF 1.8333 ___ MIN. TIME 1.0 |
RATE SF 18333 _. MAX. TIME 5.0.
CNT. SCM X1 _
CNT. D.P. 0.1
RATE SCM x1 _ COUNTER
RATE PER MINUTE CNT. INPUT CI-DIAX1
RATE D.P. 0.1 RESET TQ ZERQ
CHG. CNT/ AUTO. RST DISABLED
WITH SF YES
PRESET TRACKING
OPTIONS P1 TRACK NONE
ACCESS P2 TRACK NONE __
PI NO _ P3 TRACK NONE ___
Р2 № P4 TRACK NONE —
Pa NO _ P5 TRACK NONE
Р4 NO nn P6 TRACK NONE__
PS № — PRO. CODE 23 _
P6 NO
CTLD NO —
SF'S NO —
PRESETS
P1 360
Р2 180.0
P3 360.0 ____
P4 120.0. —
Р5 12500 ——
P6 13000 ___—
CL 0 _
USER INPUTS
BIN. MSG.REQ. NONE
USER INP. 1 NO MODE _ USER INP. 2 NO MODE …
USER INP. 3 NO MODE USER INP. 4 NO MODE
USER F1 МО МОРЕ USER F2 NO MODE —
LEGEND PLUS PROGRAM SHEET
OUTPUT 1
ASSIGNED
PHASE
TYPE
ACT/TIME
OUTPUT END
DLY TYPE
ON DL TIME
OF DL TIME
OFF@P.
RST/C
REQ MSG #
OUTPUT 3
ASSIGNED
PHASE
TYPE
ACT/TIME
DLY TYPE
ON DL TIME
OF DL TIME
OFF @ P.
RST/C
REQ MSG #
OUTPUT 5
ASSIGNED
PHASE
TYPE
ACT/TIME
DLY TYPE
ON DL. TIME
OF DL TIME
OFF @ P.
RST/C
REQ MSG #
OUTPUTS
OUTPUT 2
TOCNT ASSIGNED
+ PHASE
TIMED 1 TYPE
05 0 ACT/TIME
DISABLED QUTPUT END
_ — DLY TYPE
—_ a ON DL TIME
LL — OF DL TIME
up _ _ OFF @ P.
EN_ —_ RST/C
— _ REQ MSG #
OUTPUT 4
TOCNT ASSIGNED
+ PHASE
TIMED — TYPE
0.5. ACT/TIME
DISABLED DLY TYPE
LL ON DL TIME
pe OF DL TIME
UP. OFFEP.
EN RST/C
—__ REQ MSG #
OUTPUT 6
TORATE ASSIGNED
+ PHASE
BOUNDARY TYPE
HLACT ACT/TIME
NO DLY DLY TYPE
_ ON DL TIME
o OF DL TIME
up_ 2 OFF @ P.
EN. — RST/C
Зо REQ MSG #
0.5 ——
DISABLED
Es
BOUNDARY __
О АСТ
NODLY ....
IO RATE ....
+
BOUNDARY
HIACT —
DISPLY 1
D1 LINE 1
D1 LINE 2
D1 COLOR
DISPLY 3
D3 LINE 1
D3 LINE 2
D3 COLOR
SCRO. SPD
DSP. LEVEL
CUST. DSP.
CUST. DSP.1
CUST. DSP.2
oo
LEGEND PLUS PROGRAM SHEET (Cont'd)
DISPLAY
DISPLY 2
CUST. DSP. 1. D2 LINE 1
CUST. DSP. 2 D2 LINE 2
GREEN — D2 COLOR
DISPLY 4
PEAK-VAL D4 LINE 1
VALI-VAL ___ D4 LINE 2
GREEN — _ D4 COLOR
NONE MNEMONIC
5 RATE
5 PEAK
VALLEY
VAL-BATE = COUNT
Wl FM OVERFLOW
VAL-CNT
RATE-MNE
CUSI.DSP.1 __
GREEN. _. —
CNT-MNE . …
CNT-VAL
GREEN nn
MESSAGE
MSG. # 2_ MSG. # a...
TYPE 2t BLOCK TYPE 2L BLOCK _
TEXT SPEED UP — TEXT OVERSPD _
— LINE #4 _ STOP! —
PRIORITY 6 — PRIORITY 2
BLINKING YES ____ BLINKING YES 0
MULTIPLEX YES о. MULTIPLEX NO ——
MOM/MNT REQ MNT nn MOM/MNT REQ MNT
CANCEL TIL END CANCEL TLEND —-
TIME SEC. ee TIME SEC. _
COLOR GREEN COLOR RED ___
MSG. # y
TYPE 1L BLOCK
TEXT SLOW DOWN
PRIORITY 68 0
BLINKING NO
MULTIPLEX YES 0
MOM/MNT REG MNT
CANCEL TIL END
TIME SEC. Pa ee o
COLOR GREEN
APPENDIX "D" - ORDERING INFORMATION
ART NUMB
MODEL NO. DESCRIPTION 11523080 A CTAVDC
LGPM Multi Preset (6) Legend Plus w/Grn Backlighting LGPMO001
Multi Preset (6) Legend Plus w/Red Backlighting LGPMO101
Multi Preset (6) Legend Plus w/Dual Color Bckightng LGPMO201
SFLGP Legend Plus Programming Software, 3 1/2", 1.44 M disk SFLGP
-73-
LIMITED WARRANTY
The Company warrants the products it manufactures against defects in
materials and workmanship for a period limited to one year from the date of
shipment, provided the products have been stored, handled, installed, and used
under proper conditions. The Company's liability under this limited warranty
shall extend only to the repair or replacement of a defective product, at The
Company's option. The Company disclaims all liability for any affirmation,
promise or representation with respect to the products.
The customer agrees to hold Red Lion Controls harmless from, defend, and
indemnify RLC against damages, claims, and expenses arising out of subsequent
sales of RLC products or products containing components manufactured by RLC
and based upon personal injuries, deaths, property damage, lost profits, and
other matters which Buyer, its employees, or sub-contractors are or may be to
any extent liable, including without limitation penalties imposed by the Consumer
Product Safety Act (P.L. 92-573) and liability imposed upon any person pursuant
lo the Magnuson-Moss Warranty Act (P.L. 93-637), as now in effect or as
amended hereafter.
No warranties expressed or implied are created with respect to The Company's
products except those expressly contained herein. The Customer acknowledges
the disclaimers and limitations contained and relies on no other warranties or
affirmations.
LGPM/IM-B 8/97
DRAWING NO. LP0283
RED LION INTERNATIONAL HEADQUARTERS
> CONTROLS 20 Willow Springs Circle, York, Pa. 17402 (717) 767-6511 FAX: (717) 764-0839
EUROPEAN HEADQUARTERS
892 Plymouth Road, Slough, Berkshire SL1 4LP ENGLAND +44 1753 696888 FAX: +44 1753 696339
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