12 EVOLUTION 1 SYSTEM MANUAL Issue Issue 1.1 20 Dec 2006
SPECIAL FIELD OBJECTS
Message Objects define special characteristics about the messages contained in
line 1 or line 2. These may define for example font size, sequence number, date
code, etc. There may be up to 15 Objects (special fields) for each line in a
message with the limitation that there can only be 1 sequence number imbedded
in a message.
'P' 0x50 Message Objects
(EV I, EV II, EV SC)
Q. ESC|STX|Address|`P`|SOH|aabb|EOT
R. ESC|STX|Address|`P`|'aa bb cc dd ee ff gggg hhhh'|EOT
Where: each set of 2 ASCII characters represent the upper and
lower nibble of a byte
aa = objects for which line 0 or 1
bb = number of objects transmitted. (Max 15)
Each object as defined by bb: (repeat the for each object)
cc = Position within message string
dd = Number of characters in object
ee = Attribute of the object
Where:
ee= 00 Normal Alpha/Numeric character
ee= 01 Time Hours
ee= 02 Time Minutes
ee= 03 Time Seconds
ee= 04 Date Month
ee= 05 Date Day
ee= 06 Date Year
ee= 07 Date Julian
ee= 08 Sequence Number (1 per message)
ee= 09 Barcode
ee= 0A Shift Code
ee= 0B Expiration Date Month
ee= 0C Alpha Date Code
ee= 0D Expiration Date Year
ee= 0E Expiration Date Julian
ee= 0F Expiration Date Day
ee= 10 Day of Week (1-7)
ee= 80 Bar Code Attribute (EV II only)
The above constitutes 10 object fields. Even though there are 48
characters permitted per line data entry will be inhibited when
the 15
th
object is entered, although the last field, if it is an
alpha/numeric object, may contain enough characters to meet
the 48-character limit.