ABB System Controller Connect

System Controller Connect

 New Ethernet based peer-to-peer 

communication

 Ethernet based communication 

The System Controller Connect provides a dedi

cated, high speed, and secure interface between 

Symphony Harmony/Symphony Plus systems and 

800xA systems/safety systems.

 Applications

 The System Controller Connect software can be 

used in applications requiring a:

 • Fast and reliable interface between electrical and 

process controllers

 • Controller Connectivity for real-time data ex

change in mixed systems

 • Interface between Symphony Harmony/S+ based 

DCS controller and AC 800M High Integrity safety 

controller

 Overview

 System Controller Connect is a software product 

which is loaded and executed in a Symphony Har

mony/Symphony Plus controller.

 System Controller Connect supports Manufacturing 

Message Specification (MMS) protocol in the Sym

phony Controller. The  System Controller Connect  

software is deployed as an MMS Client Application.

 The AC 800M controller acts as a  Server and re

sponds to MMS commands sent from the System 

Controller Connect client. The client application 

reads/writes blocks of data in order to maximize ef

ficiency. This is accomplished by forming scan 

The System Controller Connect 

software provides a real time 

dedicated and secure interface 

between Harmony/Symphony Plus 

systems and 800xA systems or 

Safety systems.

 groups containing a set number of access variable 

values.

 The System Controller Connect interface performs 

non-SIL based communications that can be used for 

‘high speed’ real-time data exchange communica

tion.

 Features and benefits

 • Transfer of 800xA tag values to the Symphony Har

mony / Symphony Plus system using MMS proto

col. MMS is a native protocol of the System 800xA 

AC 800M controllers and thus needs minimal con

figuration effort and no additional hardware com

ponents.

 • MMS access variables in the AC 800M controller 

are supported in the user friendly interface. En

tries are defined as either read or write.

 • Communication rates are fully tunable to meet re

quirements.

 System 800xA values now available within the Har

mony blockware can be displayed in the Symphony 

Harmony HMI.

 System Controller Connect supports a fully redun

dant interface.  Redundant failovers are ‘bumpless’. 

Redundant Ethernet address of the AC 800M con

troller using RNRP is fully supported.