Model 574 Programmable Counting System (PCS)
140 - GSE Scale Systems
stored in the macro. If MACRO 0 is not yet setup, the
display will show: "P800.00 Mac 0 ". The upper line of
the dot matrix display indicates the macro number
selected, ie "MAC 0" through "MAC16". The solid
block indicates the end of the macro's definition.
Front Panel Key Definitions During Macro Setup
The <TARE> and <ID> keys are used to scroll the
macro's setup across the lower line of the dot matrix
display. The <RightArrow> key increments the macro's
entry number and moving the displayed setup entries
toward the left, thus making room for the next entry in
the last position on the display. Similarly the
<LeftArrow> key, decrements the macro's entry number
and moving the displayed setup entries toward the right.
The <RightArrow> key will 'wrap' around to the
beginning of the macro when the end is reached, and
vice-versa for the <LeftArrow> key. If however any
entry is in process, the <LeftArrow> key acts as a
backspace and the <RightArrow> appends an "A" on to
the end of the entry.
As in all other setup modes, the <ZERO> key will allow
you to exit the setup mode and the <SELECT> key will
advance the unit to the next parameter, ie the next macro
setup.
The <UpArrow> key acts as it does in other alpha setup
modes, that is it will begin an entry by placing an "A" on
the display if an entry is not yet in process and it will
advance the last entered character to the next sequential
value if an entry is in process. Refer to Chapter 14
regarding alpha entries for more information.
The <CLR> key can be used to delete any one character
out of a macro. Simply move the undesired character to
the last position on bottom line of the dot matrix display
(using the arrow keys) and then press <CLR>.
In order to clear out the complete setup of a macro, scroll
the setup until the BLOCK which signifies the end of the
macro setup is located in the last position of the display.
(From the beginning of a macro, press the <LeftArrow>
key, once.) Then press <CLR>. The message "Clear
All?" will appear. Press <ENTER> to proceed and clear
out the entire macro, or press any other key to prevent
clearing the macro.
Maximum Macro Size
Two factors limit the size to which macros may grow:
EEPROM (U1 and U2) and available RAM. Additional
EEPROM may be purchased and installed to increase the
amount of data which may be stored in the setup of the
574. However once macros (or custom transmit setups,
for that matter) get extremely large ( > 2K of EEPROM)
you may run into insufficient RAM to load the macro or
edit the macro. If the database option is installed,
additional RAM may be allocated to general use,
allowing the macros and other setups to increase further
in size.
To allocate 8K of your database option memory to
general use, access P65010 and press <2><Enter>. This
will decrease the available database memory by 8K.
Standard Macro Setup Method
As mentioned previously, there are two basic methods of
setting up the MACROS. The first involves using the
front panel 'cursor' keys as described above to enter the
required characters, while the second makes use of the
learn mode. In practice, you may find that using the two
methods in conjunction with each other to be the quickest
approach.
Using the cursor keys for alpha and punctuation entry,
the required characters are simply scrolled onto the
display. The number keys can be used within the same
entry for entering numeric data. Pressing the <ENTER>
key stores the entered data into the macro. The
<ENTER> key may be pressed after keying in any
number of characters.
Macro Setup LEARN Mode
Using the "LEARN" mode simplifies macro setup quite a
bit for programming macros which are to execute
commands that can also be performed using the front
panel keys.
The "LEARN" mode is accessed by pressing
<ENTER> then <SELECT>. The 574 immediately
goes to the weigh mode. From this point onward any
commands which are entered are "recorded" by the
macro. (The macro learn mode can learn unlimited
keystrokes at a time.) Press the keys which the macro
will have to execute when it is running. When all the
required commands have been entered, key in <100>
<SELECT> and the 574 will return to the macro setup
mode with the entered commands stored away. These
commands can then be edited by clearing out any
undesired entries and inserting any additional characters.
(If you are using the M550/574 simulator, the learn mode
can be exited by pressing <ALT> <F10>.)
Macro Setup Example
For the first example we will setup a very simple macro
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