User's Manual

10
Base Shut Down
Due to Host Logic
Error
Check your program for the sequence error before starting again. The host
program will have to reinitialize the Base Station or you will have to cycle
power on the Base Station and have the Terminal Sign On again in order to
continue.
Sequence Error Message
The host program must observe the one-for-one "host prompt/terminal
response" protocol at all times. The host cannot send a second data entry
prompt until it has received a response to the first data entry prompt. If it
does, this is considered a Sequence Error. If the Base Station receives a
command that is out of sequence, it sends the following message back to the
host:
Byte position Function Possible values
1 RF Terminal ID 0-9, A-Z, a-z, - =
2+ Sequence Error DC2 (ASCII 18)
Last Termination of message CR (ASCII 13)
If the Base Station receives 5 Sequence Error’s in a row, it transmits the
following message to the Terminal and shuts down: (the only host
command that it will receive is *@EOT)
Base Shut Down
Due to Host Logic
Error
Check your program for the sequence error before starting again. You will
have to reinitialize the Base Station by host program control (*@EOT) or
manually cycle power on the Base Station and have the Terminal Sign On
again in order to continue.
Illegal Command

When a terminal receives an illegal statement from the host, it will display
the entire statement on the terminal. Once the ENTER key is pressed on
the terminal, the terminal sends a “?” back to the Base Station.
Byte position Function Possible values
1 RF Terminal ID 0-9, A-Z, a-z, - =
2+ Illegal Command ?
Last Termination of message CR (ASCII 13)
For example, if Terminal #2 received an illegal command, the Base
station would transmit to the host: