Motorola ACE3600 RTU Owner's Manual page 97

Event Time Tagging
Each DI can be set in the user application program's I/O link table to trigger recording of time
tagged events upon any input change of state. The time tagged events are recorded in the CPU
memory and can be retrieved for various purposes.
Keep Last Value (KLV) and Predefined Value (PDV)
Each input can be configured to KLV or to a PDV (0, 1). This value is shown to the user
application program in the event of DI module failure. The PDV can also be used during
normal operation to force a value that masks the actual input value. In this case the user
program will get the PDV instead of the actual input value.
DI Module Configuration Options
The DI module features which can be configured are listed in the table below. Some
parameters are per module and some are per input.
Table 6-1 ACE3600 DI Module Configurable Features
Feature
DC or AC
∗
operation
Fast Capture
DI Filter (DC)
Counter Filter
(DC)
Event Time
Tagging
Keep Last Value
and Predefined
Value
Mask
∗
in Fast 24V IEC TYPE II modules –only DC
Parameter Default Setting
Settings
AC / DC DC
Disabled Disabled
/Enabled
0-254 (x 0.2 50 * 0.2 mS
mS) (=10 mS)
0-255 (x 0.05 20 * 0.2 mS
mS) (= 1 ms)
Disabled/ Disabled
Enabled
KLV/PDV KLV
PDV=0/1
No /Yes No
6-4
Digital Input Module
Per Module / Parameter Setup
Input Location
Module STS site
configuration
Input STS site
configuration
Module STS site
configuration;
'C' User Program
Module STS site
configuration
'C' User Program
Input User Program I/O
link table
Input User Program I/O
link table
Input User Program I/O
link table