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Process Automation
S950e I/O system for the Freelance DCS
Coming soon
Fit for purpose
Made for high availablity
This year, ABB launches the new S950e I/O system for the
Freelance distributed control system (DCS). S950e I/O system
meets high availablity plant requirements and thus is well suitable in many applications in the process industries.
S950e I/O is a distributed and modularized I/O system that
delivers high performance. It provides a variety of input, output and signal conditioning modules to transmit and process
signals between field devices and the process controllers.
S950e I/O provides a comprehensive set of functions to meet
your requirements. The S950e I/O modules can be combined
in a flexible way to fit many different applications in the process industries.
S950e I/O can be used together with all Freelance controllers
AC 900F, AC 800F and AC 700F and communicates with the
controllers via Profibus.
S950e I/O offers the following features and benefits:
–– High availability: optional redundancy is built-in. Both,
communication interfaces and I/O modules can be used in
redundant configuration with no single point of failure.
– – Robust: features needed in typical process industry applications are supported such as hot-swap, module-/channel-wise galvanic isolation, G3 coating (for use in harsh
environments) for all components
– – Value for your money: Investment goes a long way with
its small footprint. S950e I/O needs less space for the electronic cabinets because of its high density .
S950e I/O – Coming soon | Freelance distributed control system 1
S950e I/O modules
S950e I/O modules are used for transmitting and processing
field device input and controller output signals. All I/O modules have a similar appearance and share the same connection, configuration, and mounting methods. I/O modules are
connected via their corresponding terminal boards.
I/O type
Channels
Features
Analog input
AI951H
8
AI952B
8
HART, 0.1% accuracy, 0/4..20mA, 0/1..5V,
optional redundancy
Channel-wise galvanic isolation,
0.1% accuracy, 0/4..20mA, 0/1..5V,
optional redundancy
AI951B
8
0.1% accuracy, 0/4..20mA, 0/1..5V,
optional redundancy
Analog output
AO951H
8
HART, 0/4..20mA, optional redundancy
AO951B
8
0/4..20mA, optional redundancy
AO952B
8
Channel-wise galvanic isolation, 0/4..20mA,
optional redundancy
Digital
DI951B
16
Group isolation on module (2 groups),
optional redundancy
DO951B
16
8
––
––
––
––
––
––
iring termination for field devices
W
I/O channel signal routing
Signal conditioning
Signal range and mode selection for AI and AO
Voltage threshold selection for digital inputs
Circuit protection by fuses
Terminal board
Signal range
TB951-AI
0/4..20 mA, 0/1..5 VDC, HART
TB952-AI
0/4..20 mA, 0/1..5 VDC
TB951-TC
type B, E, J, K, N, R, S, T, U
TB951-RTD
Pt100, Cu50
TB951-AO
0/4..20 mA, HART
TB952-AO
0/4..20 mA
TB951-DI
24 VDC (dry contact)
TB952-DI
24 VDC
24 VDC (relay signal, dry/wet contact)
110/230 VAC
110 VAC/230 VAC (relay signal, dry/
Group isolation on module (2 groups);
Relay output, optional redundancy
PI951B
S950e terminal boards
The terminal boards are passive components that connect the
I/O modules and field devices for transferring I/O signals between them. Wiring connectors for field devices are also integrated. Field wiring cables are assembled to enter the cabinet
from the cabinet bottom and then be attached to the terminal
boards. A terminal board has the following functions:
Pulse Input / Counter 0..50 kHz; Input signal
range: 5V, 12 V and 24 V.
wet contact)
TB952-DO
24 VDC/230 VAC (relay signal)
TB951-PI
5 VDC/12 VDC/24 VDC
Temperature
AI951T
8
Thermocouple, optional redundancy
AI951R
8
RTD, no redundancy
New S950e I/O system
Terminal board TB952-DO
S950e I/O – Coming soon | Freelance distributed control system 2
Communication interface
The CI950 communication interface module bridges the communication between the controller and I/O modules, handling
the data transmission between the two. The functions of
CI950 are as follows:
–– S
ignal transferring via PROFIBUS
–– C ollecting the diagnostic information of both communication interface modules and I/O modules
–– H ART pass-through, even cyclic HART communication for
second and third variable
–– I/O module configuration
–– Both redundant and non-redundant mode can be used
Redundant solutions
The S950e I/O family offers redundancy options for I/O channels, power supply and Profibus connection. This enables increased availability for maximum productivity. There is no additional engineering effort required in Freelance Engineering.
You just need to plug the redundant devices using the engineering tool.
Modular I/O system
S950e I/O is connected to the Freelance controllers via Profibus. S950e I/O has a modular structure: it consists of the
communnication interfaces, I/O modules, a rack and terminal
boards.
An S950e I/O station is based on a rack or also called terminal unit. The rack based design allows for flexible selection of
I/O types and number within the system limitation. Two rack
types (terminal units) are available, one for 8 I/O modules and
one for 20 I/O modules. The terminal boards are connected
with corresponding I/O modules by D-Sub 37 (DB37) cables.
Each terminal board has two DB37 connectors for optional
redundancy.
S950e I/O - simple system configuration example
Freelance Engineering
Freelance Operations,
Formulation,
Information,
Asset Management
Industrial ethernet (optionally redundant)
Operator level
Process level
AC 700F controller
AC 800F controller
S950e I/O
Terminal Boards
S950e I/O
Terminal Boards
Field
Devices
AC 900F controller
S950e I/O
Terminal Boards
Field
Devices
Field
Devices
S950e I/O – Coming soon | Freelance distributed control system 3
Space-saving, cost efficient and reliable
Patented solution for any common
process application
Optimized for cabinet mounting
Most I/O systems are mounted in electric control cabinets today. These cabinets need expensive space in the control
rooms. That’s why the S950e I/O system is made for using
minimal cabinet space. S950e I/O allows for a high density of
up to 600 I/O signals per standard 19” two-door cabinet. The
most economical way is to wire field cables from the ground
into the cabinet center between the front side where we find
the electronic part with controllers, power supply and I/O
modules and on the back side where the the terminal boards
are mounted on DIN rails.
Engineering made easy
The entire configuration of S950e I/O is performed with the
Freelance Engineering tool. Freelance Engineering is designed
to optimize your engineering workflow.
S950e can easily be configured using the specifically designed S950e configuration plug-in. Also diagnostic information can be accessed via the the same plug-in.
Also User Function Blocks are available as part of Freelance
Engineering. These special function blocks make the signal
connection, conversion and scaling as easy as possible.
S950e mounted in cabinet with AC 900F controllers
Benefits at a glance
– – High availability through redundancy
– – Small footprint – a perfect supplement to the “smallest
DCS on the planet”: 600 I/Os per cabinet are possible
– – Reliable through hot-swap: modules can be replaced
without powering down the station.
– – HART pass-through capability for cyclic access to second
and third HART variables.
– – All-purpose I/O system for process applications with the
Freelance DCS: the patended, cost-efficient can be used in
any common process application.
– – Robust: To withstand harsh environments, all S950e
modules and components are compliant to G3 severity
level of ISA-S71.04, “Environmental Conditions for Process
Measurement and Control Systems”.
– – Optimized for cabinet mounting.
– – Cost-efficient due to affordable price and small footprint.
To summarize, the new S950e I/O system is able to cover almost any demand in process industry applications. It will help
to to save money due to reduced cabinet space and keep
your production up and running thanks to redundancy options.
Easy configuration and diagnostics via the S950e configuration plug-in
S950e I/O – Coming soon | Freelance distributed control system 4
www.abb.com/freelance
www.abb.com/controlsystems
Note:
We reserve the right to make technical changes
or modify the contents of this document without
prior notice. With regard to purchase orders,
the agreed particulars shall prevail. ABB does
not accept any responsibility whatsoever for
potential errors or possible lack of information in
this document.
We reserve all rights in this document and in
the subject matter and illustrations contained
therein. Any reproduction, disclosure to third
parties or utilization of its contents - in whole
or in parts - is forbidden without prior written
consent of ABB.
© Copyright 2015 ABB.
All rights reserved.
3BDD017333 B EN
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