Delta RMC70 - Manual (Page 27)

Continuing the Motion Application
deltamotion.com 25
Communications
Most PLCs or other host controllers can communicate with the RMC,
which includes reading status, writing values, and sending commands.
The RMC70 supports Ethernet, PROFIBUS-DP, or serial RS-232/485.
See the Communications section of the RMCTools help for more
detailed information.
Discrete I/O
Discrete I/O augments the communications of the RMC. Discrete I/O is
often faster than the communications, and is therefore well-suited for
starting a sequence in the RMC at a specific time. Up to 32 discrete I/O
can be added to the RMC70. Each I/O point is individually configurable
in software as inputs or outputs. See the Discrete I/O topic in the
RMCTools help for details.
Variables
Variables make the User Programs very flexible and easy to maintain.
Variables can be used to effortlessly change programs and easily
modify User Program parameters via a PLC. Variables can also be used
to store data. For more details see the Variables topic in the help.
Program Triggers
Use the Program Triggers to start User Programs based on conditions
defined by the user. For example,

Start a User Program by writing to an RMC variable from a PLC.

Start a User Program when a discrete input turns on.

Automatically start a User Program when the RMC starts up.

When an error condition occurs, automatically start a User
Program to handle it.
See the Program Triggers topic in the RMCTools help for details.