User Interface
4-6 Manual # 42-02-2P24
Diagnostic Mode
With all Function switches down, Diagnostic Mode is active. The
LCD displays status, position, an internal memory register address
and its contents (flags). This mode allows you to select a memory
register and view its contents. Memory contents can tell you the
exact state of controller inputs and outputs, which is very valuable
in troubleshooting.
1. Select the address to view. (See following two tables.)
• Press N to select an address digit (selected digits blink)
• Press + or - to change the blinking digit
2. Press S to select the entered address when
ready to view contents (or wait about 20 sec-
onds and the selection will take effect by
itself).
LCD Format
• Control Configuration: D, S, or blank.
• S (slave): Hall call assignments made by
group or other controller.
• D (dispatcher): This controller is acting as a
dispatcher. It is responsible for assigning
hall calls to itself and to a second controller
if this is a Duplex installation.
• Blank: Simplex operation or, if part of a
group or duplex, communication has not
been established with controller or group.
• Status / Error Message: The top line is elevator
status or an error message. Messages are scrolled if longer than the space available. There
is a status message for each special operation (e.g., Fire Service). There are also messages
for error conditions (e.g., open safety string). Please refer to “Status and Error Messages”
on page 5-2 for a list of messages including a description and troubleshooting suggestions.
• PI “nn”: Current elevator position relative to the bottom floor. 1 denotes the lowest landing
served.
• Computer Internal Memory: Register address and contents. Each of the 8 data digits
(flags) corresponds to a particular elevator signal or condition. Each digit is either 1 or 0. A
1 indicates the signal or condition is ON and 0 indicates it is OFF.
Status
Position indicator
(landing 8)
Register Address
Memory Contents
Duplex Configuration:
D = Dispatcher
S = Slave
Blank = Simplex Operation
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