Programming instructions

32
XR200 Programming Guide
2841 E. Industrial Drive Springfield, MO 65802-6310 800-641-4282
16.3 Diagnostics function
The XR200 panel contains a Diagnostics function that allows test the communication integrity of the LX-Bus™,
identify individual zones, and also display the present electrical state of any zone. To use Diagnostics, reset the
panel, enter the Diagnostics code 2313 (DIAG), and press COMMAND.
TEST LX-BUS
The first Diagnostic function you'll see displayed is: TEST LX-BUS. This function allows you to test the ability of the
462N, 462P, 472, and 481 Interface Cards to communicate with zone and output expander modules connected to
their LX-Bus™ circuits.
To continue, press any top row SELECT key. The keypad displays LX-BUS 1 2. Press the SELECT key under 1 to
test LX-Bus circuit number 1. Press the SELECT key under 2 to test LX-Bus circuit number 2. The keypad now
displays ADDRESS: - . Enter a 2-digit LX-Bus address to which you have assigned a device and press COMMAND.
Important Note: A device address is not the same as a zone number. If you are testing 714 or 715 Zone Expander
Modules, which each contain four zones, the device address is the first zone number. When the panel polls a 714 or
715 on the LX-Bus, it recognizes them as four zone devices and skips polling the remaining three zones (these are
polled internally by the module, which then transmits any status changes to the panel). This polling of addresses
greatly reduces the amount of time it takes the panel to poll all devices on the LX-Bus.
When testing LX-Bus devices, enter only the addresses to which the modules have been set.
The keypad next displays TESTING . . . STOP during the testing of the device. At any time, you can press the
SELECT key under STOP to end the polling. The panel now records the number of no responses from the device. If
all polls are received back by the panel correctly, the keypad displays 00000/65535 FAIL. The 0 (zero) represents the
number of failed polling responses.
If one or more polling attempts fail, the keypad displays * * * * */65535 FAIL. (The * * * * * represents the number of
polling attempts that failed.) A display of 65535/65535 FAIL indicates a problem with the interface card or its LX-Bus
wiring such as a bad or broken wire, harness not properly connected, or excessive noise or distance. It can also
mean that a zone number was entered that did not match a device address. Press the ARROW key to enter a new
device address or press COMMAND to exit the TEST LX-BUS option.
ZONE FINDER
The second Diagnostic function is the Zone Finder. Press the COMMAND to display ZONE FINDER. This function
allows you to identify individual zones on devices connected to the LX-Bus of an interface card, the panel, or any
zones on the keypad data bus. To use ZONE FINDER, press any top row SELECT key. The display changes to
FAULT ZONE. The next zone on the system that changes from a normal to an open or shorted state is displayed as
ZONE NO: * * *. To continue, press the ARROW key.
ZONE STATE
Press the COMMAND to display the third Diagnostic function: ZONE STATE. This function allows you to enter any
zone number and check its current electrical state (Normal, Open, or Shorted). Press any SELECT key. The display
changes to ZONE NUMBER: _ . Enter in the number of the zone you want to check and press COMMAND. The
panel then displays the current state of the zone as either NRML (normal), OPEN, or SHORT.
LX-BUS STATUS
The fourth Diagnostic function is the LX-BUS STATUS. This function allows the panel to poll all devices connected to
the LX-Bus of an interface card and check for any Overlapped, Missing, or Extra addresses. Below is a description of
each status item:
Overlap - An overlap occurs when two or more devices are set to the same address.
Missing - A missing occurs when a zone between 100 and 299 has been programmed in ZONE INFORMATION and
no device with that zone's address has been installed on the LX-Bus. For example, if zone 110 has been
programmed but the device has not been installed or has been set to another address, the zone cannot be found by
the panel and a MISSING is displayed here in LX-BUS STATUS. To correct the problem, check your zone
programming and addressing of zone expansion modules.
Extra - A device is installed on the LX-Bus but none of its zones are programmed into the system.
Exiting the Diagnostics program
To exit the Diagnostics function, press the ARROW key until you see the display STOP then press any top row
SELECT key. The keypad returns to the Status List display.
16 - APPENDIX