
ADDRESSING
PAGE 1-19
ID1
: 2408 as LCP1
ID2
: 2404 as LCP 2
ID3
: UNUSED
ID4
: 2 BTN SWITCH
ID5
: 6 BTN SWITCH
ID6
: ANALOG 1
ID7
: ANALOG 3
through the addresses to find out which address the errors
are coming from.
Say it is a switch. Investigate that switch to find our what is
wrong. Usual problems are an additional terminator or a
bad connection. Another possibility is that the switch itself
is bad.
Very occasionally one will find an address with a high error
rate that has no card or switch. This is usually due to no ter-
minator at the end of the bus resulting in a false echo.
Once a system has been set up there should be no errors
on the bus for at least 2 minutes at a time.
Occasionally there will be an error due to noise on the line
or a data collision. But these should be rare.
Most items on the bus try 30 times in order to get a ques-
tion or answer through. Thus the error rate can be very high
and yet everything works. The only apparent difference will
be that the LEDs will respond slower on a system with more
than 10 switches.
PANEL/SWITCH TYPES MENU
Once a new switch or board has been addressed it must be
defined in this menu. Notice that there are 19 pages of
addresses. Scroll through to the correct page and then to
ERROR STATISTICS:
OVERALL: 134
ADR8 :
120
CMD1 : 0
CLEAR
the correct address. Then scroll through the options to
define the item. For example if it is a switch then scrolling
up to say "6 BTN SWITCH" would be appropriate.
Note that if you are adding a control card to an LCP panel
then it is important to scroll though the LCPs to assign it to
the correct LCP or it will not display in the Switch Button or
Group menus.
RELAY PROPERTIES
This menu is also available in the non restricted area and is
repeated here for convenience.
REMOTE SYSTEM MENU
Use this menu for dialing up another DTC 2400 or for set-
ting the password to be used by a remote DTC 2400 in
order to access your DTC 2400.
REMOTE PASSWORD
This would be more accurately named the dial in password.
It is usually set to
001900
Page 54
60