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The SIGN ON character for a 6 line display RF Terminal operating in 6 line display mode (see the previous point concerning
LCD DISPLAY MODE) is different than for a 4 line display. A 6 line display terminal operating in 6 line mode signs on using
ASCII 22. If the 6 line terminal is configured for 4 line display, it signs on using ASCII 15. This allows you to use both types of
display in the same system and be able to distinguish between the two terminal types. See page 6-6 for more information on
SIGN ON.
CAUTION
: All 6 line display terminals are by default, configured as 6 line display terminals and will try to SIGN ON using
ASCII 22. If you are trying to SIGN ON to an existing 4 line display terminal system that has not had any changes in its pro-
gramming to utilize the 6 line display terminals, the 6 line display terminal will NOT BE ABLE TO SIGN ON. Make sure to re-
configure the Terminal using the LCD DISPLAY MODE to operate as a 4 line display terminal.
Here are some sample command statements utilizing some of the programming tips offered above:
@2,1,1,ENTER ITEM NO
Display
ENTER ITEM NO
on line 2, position 1
and wait for wait for data input. This is a
valid
single command
statement
– it ends with a
data entry request.
@V23@1,2,1,WRONG ITEM
Play voice message 23, display
WRONG ITEM
on line1, position 2 and wait for data input. This is
a
valid
multiple command
statement
– it ends
with a data entry request.
@C1@1,7,0,PICKING
Clear line 1. Display
PICKING
at position 7 of
line 1. This statement is
illegal.
To be a valid
statement, it must end with a data entry re-
quest. For example:
@C1@1,7,0,PICKING@2,7,1,ITEM
@1,1,1,ITEM@2,1,1,QTY
Since only one command can be a “prompt” data
entry request, this is an
illegal statement
and
would be ignored as a command. It would be
valid if changed to
@1,1,0,ITEM@2,1,1,QTY
Base Station to Host Formats
The basic format of a message that is transmitted from Base to Host is fairly simple:
Byte position
Function
Possible values
1
RF Terminal ID
0-9, A-Z, a-z, - =
2+
Data Transmitted
**
Last
Termination of message
CR (ASCII 13)
Typically, the Base Station is sending the “answer” to the hosts “question” - for example, if a Base sent a host message to a ter-
minal #2 that said:
2@1,1,1,ITEM NUMBER
+ EOT
The RF Terminal would display ITEM NUMBER on line 1, position 1 and accordingly, the operator would then enter an item
number by scanning or using the keypad. The RF Terminal transmits the data entered -say it’s
123
- to the Base Station, which in
turn transmits the following to the host:
2123
+CR
Where
2
is the Terminal ID,
123
is the data and
CR
is the termination, (the plus sign is not transmitted).
Besides data, there are other messages that the Base Station will send to
the Host:
Serial Reply
After a
Serial
command (
@S
) has been successfully completed, the Base Station sends to the Host the Terminal ID followed by a
CR. Serial commands are typically used for attached serial printers. Serial commands cannot be combined with other commands
in a message to the Base Station/Terminal. Remember, you can only send 231 characters (including the ID + @S + EOT).
Summary of Contents for 7100 RF Terminal Series
Page 5: ......
