The S800 I/O provides easy installation of the I/O modules and process cabling. It is highly modularized and flexible so that the I/O modules can be combined to suit many applications. The S800 I/O modules and a Fieldbus Communication Interface (FCI) are combined to form an I/O Station.
The S800 I/O provides easy installation of the I/O modules and process cabling. It is highly modularized and flexible so that the I/O modules can be combined to suit many applications, including most types of signals, HART and Intrinsic Safety Interface. The S800 I/O modules and a Fieldbus Communication Interface (FCI) are combined to form an I/O Station. The S800 I/O can be used in both single and redundant applications.
In general, all S800 units are G3 compliant. G3 compliant modules withstand more severe environmental conditions according to ISA-S71.04. The following S800 units are G2 compliant – SD821, SD822, SD823, SD831, SD832, SD833, SD834, SS822, SS832, TB811 and CI830. G3 compliant versions of SD822 and SS822 are also available (refer to SD822Z and SS822Z).
ABB S800 I/O is a comprehensive, distributed and modular process I/O system that communicates with parent controllers over industry-standard field buses. Thanks to its broad connectivity it fits a wide range of process controllers from ABB and others.
By permitting installation in the field, close to sensors and actuators, S800 I/O reduces the installation cost by reducing the cost of cabling. And thanks to features such as hot swap of modules, on-line reconfiguration and redundancy options, it contributes to keeping production — and thereby profits up.
S800 I/O features include:
Flexible configuration and installation
Ease of set up
Reliability and accuracy
Redundancy also on I/O module level
High Integrity I/O modules certified to SIL3
High accuracy time tagging
Defined outputs at communication errors
I/O modules with Intrinsic Safety interfaces
The S800 I/O is distributed as modular I/O that communicates with numerous controllers over Advant Fieldbus 100 (AF100), PROFIBUS-DP, or directly.
The S800 I/O provides easy installation of the I/O modules and process cabling. It is highly modularized and flexible so that I/O modules can be combined to suit many applications. The S800 I/O can be mounted in many configurations to fit most requirements.
S800 I/O is used in applications around the world by numeruos industries and control systems.
The various applications require a high flexibility in the signal interfacing and field wiring termination to adapt to user preferenses and engineering or maintenance methods.
Several termination and signal adaption product lines can be used to adopt to the needs in each and every installation.
ABB S800L I/O Modules
The I/O modules have open ventilated plastic enclosures and a bottom of sheet metal. On the front of each I/O module there is one LED (STATUS) indicating the module status and digital I/O modules have one status LED for each channel. An electronic type designation ID in each module keeps the I/O module from being taken into operation by the ModuleBus master, if a module’s ID doesn’t match the configured module type definition.
The module can be mounted on a standard DIN rail. The module is locked to the DIN rail by using the locking screw. The process connection is done via detachable connectors.
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• 8 channels for 0…20 mA or 4…20 mA, single ended unipolar inputs. • 1 group of 8 channels isolated from ground. • 12 Bit resolution. • Power and monitor for Ex certified two-wire transmitters. • Non energy-storing analog inputs for externally powered sources. • EMC protection. • DIN rail mounting. • G3 Compliant.
There are two types of S800 I/O modules: • Standard S800 I/O, which is mounted on MTU’s. • S800L, which is mounted directly on the DIN-rail.
The two types of S800 I/O modules can co-exist on the same bus. The main difference is that the standard S800 I/O is hot swappable, and it offers many type of field connection alternatives through the different type of MTUs that are used.
On the front of all standard S800 I/O modules, there are at least three LEDs (RUN, WARNING and FAULT) indicating the module status. Additionally output I/O modules have one LED indicating OSP (Output Set to Predetermined) and some input modules have one LED indicating PRIMARY. Digital I/O modules have one LED per channel indicating the current state (on/off) and pulse counter I/O modules have two or more LEDs per channel. S800L I/O module has one dual color LED (STATUS) indicating the module status.
All I/O modules have user parameters that can be configured using the engineering tool. The reset circuitry keeps the I/O module in Init State until the bus master indicates that the Modulebus power supply is valid. In addition, the standard S800 I/O modules are kept in Init State until the module locking mechanism (on the MTU) is in the locked position.
All output I/O modules implement the Output Set to Predetermined (OSP) function. The outputs of the I/O module are set to a predetermined value, if the OSPwatchdog timer expires or if the SetOSPState command is received. The watchdog timer is set by the controller (OSP timer) and is used for ModuleBus supervision. The watchdog timer is re triggered every time the correct node address is decoded (or broadcast). If the watchdog timer expires or if the SetOSPState command is received, the module enters the OSP state and the active outputs (if any) are set to their OSP values. The OSP value can be either configured as a predefined value or set to use the last good value sent. The output values are kept as long as the module stays in the OSP state. To change the outputs, the module first has to leave this state. When re-entering Operational State, the outputs are still kept with their OSP value until new valid values are written.
ABB S800 I/O Technical Data
According to ISA-S71.04
Maximum ambient temperature
Class I according to IEC 61140 (earth protected)
IP20 according to IEC 60529
S800: 45 mm (1.77″) S800: 86.1 mm (3.4″)
S800: 102 mm (3.8″), 111 mm (4.2″) including connector S800L: 58.5 mm (2.3″)
S800: 119 mm (4.7″) S800L: 110 mm (4.33″)
S800: 0.2 kg (0.44 lbs.) S800L: 0.24 kg (0.53 lbs.)