Parameter 45: Data Loop Test - Honeywell FBII CP-220A Hookup And Installation Instructions

PARAMETER 45:
Data Loop Test
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.
DATA LOOP TEST OFF MM/DD/YY HH:MM:SS
Background:
The Data Loop Test provided by PARAMETER 45 offers a more rigorous method
than either PARAMETER 20, DTR, or PARAMETER 21, RTS, of testing
communications between the CP-220A and the Automation System's computer.
Rather than having the CP-220A simply check for proper voltage levels at the
computer (as performed by PARAMETERS 20 and 21), the Data Loop Test is
initiated by the computer and evaluates the ability of both it and the CP-220A to
communicate back and forth.
With PARAMETER 45 enabled, the computer "calls" the CP-220A, causing it to
send a reply, which is acknowledged by the computer. If the acknowledgement is
not received by the CP-220A within the time frame programmed in PARAMETER
15, Computer Trouble Delay (see page 2-81), the receiver will generate a
[COMPUTER FAIL] message.
If PARAMETER 45 is enabled, PARAMETERS 16 and 17 (pages 2-82 and
2-83) must also be enabled, and PARAMETERS 20 and 21 (pages 2-88 and
2-89) must both be programmed to [OFF].
NOTE: The Data Loop Test is valid only when PARAMETER 02, Receiver
Computer Type (page 2-76) has been set to either the FBI or the
ADEMCO mode. Furthermore, the Data Loop Test will operate
only if supported by the Automation System computer in use.
Programming Procedures:
After entering PARAMETER 45, [DATA LOOP TEST OFF] will be
displayed with the [OFF] after [TEST] flashing.
Press the NEXT key or the MANUAL/PREVIOUS key to toggle between
[DATA LOOP TEST OFF] and [DATA LOOP TEST ON].
Default:
PARAMETER 45 is defaulted to [DATA LOOP TEST OFF].
Advancing to Next Parameter:
After programming PARAMETER 45, press the N key to advance to
PARAMETER 46 – the next parameter in Category C.
The CP-220A displays the parameter just programmed ([PARAMETER
NUMBER 45]) with its first digit flashing, indicating its request for the
next parameter number. Press either:
• 4 then 6 , or
• then
• the
NOTE: When the
immediately – not its number.
CP-220A Central Station Receiver
Hook-Up and Installation Manual
key and 6 , or
key
is used, the name of the next parameter appears
Section 2: Programming the CP-220A Page 2-95