ABB Ability™ Symphony® Plus MR Series (Melody Rack) MR Series controllers

Wide range of intelligent I/Os, standard interfaces and libraries

Scalable control stations

MR Series control stations are conveniently

set up according to project needs and are made

up of modular controllers and I/Os. Depending on

the scope of the automation task, the controller

is extended with I/O modules or communication interfaces.

The controllers are connected via the control

network to ensure reliable, high speed and

system wide real-time signal exchange with

other control stations, with S+ Operations,

with system level applications and with

S+ Engineering for Melody.

Each node on the control network operates

autonomously. Acting as its own communication

manager, the system requires no traffic directors.

The controller’s associated I/O modules are

connected using the high-speed redundant serial

field network or PROFIBUS DP (DPV1 as well as DPV2).

MR Series controllers

Melody controllers are designed for maximum

computing power and modular scalability.

Each controller can handle up to 2.000 analog

and/or digital I/O points from the local I/O, and

additionally 6.000 analog and/or digital I/O

points connected via PROFIBUS DP. In addition

to the standard tasks such as signal processing,

loop and logic control, the MR Series controller

also performs complex computations such as

sequential, batch and advanced controls.

Diagnostic routines periodically check the

hardware and firmware integrity.