Owner`s manual

Digital Input Module
6-4
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 Parameter
Settings
Default Setting Per Module /
Input
Parameter Setup
Location
DC or AC
operation
∗
AC / DC DC Module STS site
configuration
Fast Capture Disabled
/Enabled
Disabled Input STS site
configuration
DI Filter (DC) 0-254 (x 0.2
mS)
50 (10 mS) Module STS site
configuration;
‘C’ User Program
Counter Filter
(DC)
0-255 (x 0.05
mS)
20 (1 ms) Module STS site
configuration
‘C’ User Program
Event Time
Tagging
Disabled/
Enabled
Disabled Input User Program I/O
link table
Keep Last Value
and Predefined
Value
KLV/PDV
PDV=0/1
KLV Input User Program I/O
link table
Mask No /Yes No Input User Program I/O
link table
Sleep Mode
Each DI module can be switched by the user application program to Sleep Mode. In Sleep
Mode, the module does not function and the power consumption is minimized. During Sleep
mode, the user application program will get the predefined values (PDV) for each I/O.
∗
in Fast 24V IEC TYPE II modules –only DC