INSTALLATION
SETUP
3 - 6
I-E96-309A
®
and a Digital Logic Station (DLS), then the contact must be in
the 1 or open position. In either of these applications, the first
two contacts (1 and 2) of the configuration switch set the oper-
ation of two separate point groups in the I/O circuitry. Contact
1 sets the operation of group A. Contact 2 sets the operation of
group B. To set these groups for input, set these contacts to
the 0 or closed position. To set groups A and B for output, set
contacts 1 and 2 to the 1 or open position.
NOTE: When the DSM interfaces between an LMM or an MFP and
field devices, you can set these contacts to make the I/O point
groups either input or output. When the DSM interfaces between a
master and a Digital Logic Station, both point groups must be out-
puts (contact 1 and 2 must be in the 1 or open position).
Contact 4 on the configuration switch defines the values of out-
put signals during default. This contact allows the DSM to set
the operation of the output points if communication to a master
is lost. Set contact 4 to the 0 or closed position to drive all out-
puts to the preset default values. Set contact 4 to the 1 or open
position to freeze all outputs when communication is lost.
NOTE: When the DSM interfaces between a master and a Digital
Logic Station, contact 4 must be in the 0 or closed position to drive
all outputs to the preset levels.
Default Value Switch
shows the default value switches. If communication
to either master is lost, the DSM will output default values (if
contact 4 of the configuration switch is closed). Switch A
defines the default value of point group A. Switch B defines the
default value of point group B. Each of the eight contacts in the
switch set to 1 or open causes an output signal to be sent to
the related I/O point during default.
NOTE: When the DSM interfaces between an LMM or an MFP and
field devices, you can set these contacts to either open or closed.
When the DSM interfaces between a master and a Digital Logic Sta-
tion, contact 8 of switch B must be set to the 0 or closed position.
Digital Input/Output Jumpers
Each of the I/O points has a removable jumper (J1-J16), see Fig-
ure
. Connect this jumper between two of the three posts for
each input or output point. To select an I/O point for input, place
the jumper between posts 1 and 2. For outputs, place the jumper
between posts 1 and 2 to cause the DSM to operate normally.
Place the jumper between posts 2 and 3, to isolate the outputs
from each other and from the inputs. A jumper connected to
posts 2 and 3 makes the output a two wire isolated output.
NOTE: When using two-wire isolated output, the front panel LED for
the I/O point does not light and the DSM cannot sense the state of
the signal line to the I/O point.