Rockwell Automation 150 SMC-Flex User Manual - Manual (Page 110)

7-6 Communications
If enabling control from the built-in SMC-Flex programmer, the
Logic Mask must be set as follows:
Table 7.D Logic Mask Requirements
Control Enable The Logic Mask parameter (Parameter 87) allows the user to
configure whether a communication device (HIM or network
connection) can perform control commands such as starting. Each
communication port can be enabled or disabled as required. When a
given device is enabled through the logic mask that device is allowed
to execute control commands. In addition, disconnecting any device
with the logic mask enabled will result in a communication fault
unless the communication fault is disabled. When a given device is
disabled through the logic mask that device cannot execute control
commands, but can still be used for monitoring. A device that is
disabled through the logic mask can be disconnected without causing
a fault.
Loss of Communication and
Network Faults The loss of communication fault will follow the functionality as
defined in the DPI specification. There will be separate faults for each
device. Since three DPI ports are supported there will be three faults
that can be generated.
DPI provides a separate network fault for each port. This fault can be
generated directly by the peripheral and is separate from the
Communications Loss fault (which is actually generated by the
SMC-Flex itself).
SMC-Flex Specific Information The SMC-Flex can be used with all LCD applicable DPI interface.
Regardless of the type of interface being used, the information below
can be used to configure the rest of the system.
Mask Code Description
0 No external DPI devices are enabled
4 Only HIM on port 2 is enabled
12 Two HIMs are enabled on ports 2 and 3
32 Only the DPI communication card on port 5 is enabled
36 HIM on port 2 and the DPI communication card on port 5 in
enabled
44 Two HIMs on ports 2 and 3 and the DPI communication card on
port 5 is enabled
IMPORTANT Stop commands override all start commands and can
be initiated from the hardwired inputs or any port
regardless of the logic mask.