REMEMBER!
To leave the Programming
Mode at any time, press the
Esc
key. Doing so will
return the CP-220A to its
normal operating mode.
Programming changes will
be stored automatically.
PARAMETER 17:
NAK
Programming Procedures:
When
PARAMETER 16
is entered, [ACK 00] will be displayed, indicating
(via the use of [00]) that the [ACK] feature has been factory disabled – the
default arrangement (in which it is assumed that an
Automation System
is
not
in use). If there
is
an
Automation System,
any
ASCII
value between [01]
and [FF] may be programmed to represent the [ACK], although
ASCII
[06]
is normally used to convey the
ACKnowledgement
character.
NOTE: Whatever ASCII character is used to provide the [ACK] must be
the same for both the CP-220A and the
Automation System.
In any case, the first of the two digits will be flashing; use the
NEXT
key or
the
MANUAL/PREVIOUS
key to change the character, as required. Once
this is done, use the
key to move to the second digit. As before, use
either the
NEXT
key or the
MANUAL/PREVIOUS
key to change it, if
necessary. Subsequent movement between the two digits can be
accomplished through the use of the
key or the
key.
Default
:
PARAMETER 16's
default disables the
ACKnowledgement
([ACK])
character through the use of
ASCII
[00].
Advancing to Next Parameter:
After programming
PARAMETER 16,
press the
N
key to advance to
PARAMETER 17
– the next parameter in
Category C
.
The CP-220A displays the parameter just programmed ([PARAMETER
NUMBER 16]) with its first digit flashing, indicating its request for the
next parameter number. Press either:
•
1
then
7
, or
• then
key and
7
, or
• the
key
NOTE: When
the
is used, the
name
of the next parameter appears
immediately – not its
number.
NAK 00 MM/DD/YY HH:MM:SS
Background:
[NAK] is the computer representation of
Negative ACKnowledge,
an
ASCII
character sent from a device receiving data back to the device that sent it,
to indicate that the received data was either invalid or unaccepted.
CP-220A Central Station Receiver
Section 2: Programming the CP-220A Page 2-83
Hook-Up and Installation Manual