Introduction

ABB S800 IO is a modular, distributed, and highly integrated I/O system. It provides a straightforward connection for field devices, with various module and terminal combinations.

Key Features

• Profibus DP/DPV1 and AF100 Communication: Ensures seamless integration and reliable data transfer.
• Status Indicators: Each module and channel have status LEDs for easy error diagnostics.
• Comprehensive I/O Models: Suitable for a wide range of factory applications.
• DIN Rail Mounting: Standardized installation method for easy setup.
• Redundancy Support: Offers power and bus medium redundancy for uninterrupted operation.
• Output Control: All outputs can be forced and preset.
• Efficient Device Connection: Simplifies connection to drives, reduces communication delay, and saves costs.
• IP20 Protection: Injection-molded modules offer protection per IEC529 standards.
• Hot-Swappable Modules: All modules can be replaced while powered.
• Intrinsic Safety Modules: Includes modules with HART communication.

Product Description and Structure

S800 IO uses Profibus and AF100 standards for remote I/O. It directly connects to ABB drive equipment, with module parameters configurable via the bus.

• Status Indicators: Module states are indicated by LEDs and can also be diagnosed remotely.
• Analog Values: Represented as 0-100% of signal range; AI/AO modules refresh every four scan cycles, RTD/TC modules every ten.
• Bus Interface Modules: Periodically scan I/O modules with a cycle time of 4-108ms, depending on module type and quantity.

Profibus Connection

An S800 IO station connected via Profibus DPV1 includes one or two (redundant) FCI (CI801 or CI840) communication modules and up to 12 S800 I/O modules. For redundancy, two FCI communication modules form one station.

Modulebus Connection

An S800 IO station connected via Modulebus includes one optical Modulebus modem (TB820 or TB840) module and up to 12 S800 I/O modules.

• Non-Redundant Connection: Directly connect up to 12 I/O modules to the right of an AC800M controller using electrical Modulebus.
• Optical Modulebus Extension: Extend up to seven S800 I/O stations via optical Modulebus, each with up to 12 I/O modules.

Communication Protocols

Profibus

• FCI Modules: CI801 or CI840 connect S800 IO to the Profibus DPV1 network, with CI840 supporting communication redundancy. S800 IO acts as a standard slave device.

Redundant Profibus

• Redundant Communication: Supports both redundant communication medium and redundant FCI modules (CI840), allowing HART instrument configuration.

Modulebus

• Internal Modulebus: FCI modules use internal Modulebus for communication within the Base Cluster.
• Optical Modulebus Modem: Required for communication between expanded Cluster I/O stations.
• Ring Communication Modes: Supports single-direction and bidirectional ring communication structures.

Bus Communication Interface Modules

• CI801: Supports Profibus DPV1, standard D-type 9-pin Profibus DP interface, and optical interface via TB806/TB842.
• CI840: Supports redundant Profibus communication, includes D-type 9-pin interfaces, service interfaces, and connection via TB806/TB842 or TB846/TB842.

Interface Module Selection

• CI801: Supports Profibus DPV1, standard Profibus modem, and 24V isolated power supply.
• CI840: Supports redundant Profibus communication, Profibus DPV1, standard Profibus modem, and 24V isolated power supply.

Module Bases

• TU846: Base for redundant CI840 and I/O modules.
• TU847: Base for redundant CI840 and non-redundant I/O modules.
• TB820: Optical Modulebus interface, 24V isolated power supply.
• TB840: Redundant optical Modulebus interface, 24V isolated power supply.

Module Types

• S800 I/O Modules: Designed for use with module terminal units, hot-swappable.
• S800L I/O Modules: DIN rail-mounted with detachable I/O terminals, not hot-swappable.
• Redundant S800 I/O Modules: Use specialized I/O bases and paired modules for redundant operations.