Phoenix Contact IBS S5 DSC/I-T 2752000 Termination Board for Siemens SIMATIC S5 PLCs

Product Overview

The Phoenix Contact IBS S5 DSC/I-T 2752000 (IBSS5DSC/I-T) is a termination board for Siemens SIMATIC® S5 PLC systems with electrical isolation. The board enables SIMATIC S5-115U through S5-155U controllers to connect with the INTERBUS fieldbus system.

The module connects directly through the SIMATIC I/O bus and operates as a system I/O card with a variable address area. INTERBUS input and output data can be accessed directly through the periphery or indirectly through the process image.

INTERBUS Communication Functions

The IBS S5 DSC/I-T supports INTERBUS communication with up to 4096 bits of process data and up to 62 devices with parameter channels. The INTERBUS system can start automatically during power-up or through the application program.

System-specific parameter assignments for both the INTERBUS system and the controller board are stored centrally in a pluggable parameterization memory on the board.

Configuration and Diagnostics

Phoenix Contact provides IBS CMD SWT software for Windows operating systems. The software supports parameterization, configuration, diagnostics, and system documentation for the complete INTERBUS installation.

The board also supports diagnostics for individual devices and the entire INTERBUS network during operation. Local operating conditions of connected INTERBUS devices can be monitored in real time.

Integrated LCD Diagnostics

The IBS S5 DSC controller board features a four-line LCD display for local diagnostics. Operating states, error conditions, and I/O status information appear in plain text format. This direct diagnostic display helps reduce startup time and system downtime.

Main Features

• Termination board for Siemens SIMATIC® S5 PLCs
• Electrical isolation support
• INTERBUS master functionality
• Automatic INTERBUS startup
• Supports Plug & Play startup technology
• Synchronous operating modes
• Supports process data preprocessing to IEC-1131
• Supports parameterization of changing bus segments
• Four-line LCD diagnostic display
• Supports interrupts

Technical Specifications

• Manufacturer: Phoenix Contact
• Model: IBS S5 DSC/I-T
• Item Number: 2752000
• Product Type: PLC controller board
• Format: 2 narrow slots
• P-area: 0 ... 255 inputs and outputs
• Q-area: 0 ... 255 inputs and outputs
• Maximum Process Data: 4096 bit
• Maximum Devices with Parameter Channel: 62
• Transmission Medium: Copper
• Supply Voltage: 5 V DC
• Voltage Range: 4.8 V DC ... 5.3 V DC
• Typical Current Consumption: 1.5 A
• Maximum Power Dissipation: 7.5 W
• Degree of Protection: IP00
• Mounting Type: In the host system

Connection Interfaces

• INTERBUS Remote Bus: 9-pos. D-SUB female connector with electrical isolation
• Diagnostics and Parameterization: RS-232-C, 9-pos. D-SUB male connector
• Host System: Siemens SIMATIC S5 115U to 155U

Software Requirements

• Configuration Tool: CMD from Version 4.0x
• Diagnostics Tool: DIAG+ from Version 1.0x

Environmental and Compliance Information

• Country of Origin: Germany
• EU RoHS: Compliant
• China RoHS: EFUP-50
• REACH SVHC: No substance above 0.1 wt%

Technical FAQs

How is the system parameterization data preserved on the IBS S5 DSC/I-T termination board?The parameter data for the network configuration is stored centrally inside a pluggable, non-volatile parameterization memory module located directly on the termination board. Upon system initialization or power-up, the controller automatically references this pluggable card to activate the network topology. This design ensures that if the main board must be swapped out, the parameters remain intact on the memory chip, avoiding a manual re-download.

What adapter is required to mount this termination board into a SIMATIC S5-115U subrack?For physical installation within a Siemens SIMATIC S5-115U controller chassis, the termination board requires an external adapter capsule with the part number 6E5S 491-OLB11. This mechanical capsule aligns the board with the specific slot depths of the 115U rack, guaranteeing stable contact pressure along the SIMATIC I/O bus backplane.

Can this copper-based termination board connect to a fiber-optic INTERBUS network?The native interface on the board consists of a 9-position D-SUB female connector configured for electrically isolated copper transmission. To integrate this board into a fiber-optic network topology, you must place an external Phoenix Contact optical fiber interface converter between the D-SUB port and the optical network line to convert the electrical pulses into light signals.

Field Engineering & Installation Guide

• Backplane Power Safety Protocols:Never install, adjust, or remove the IBS S5 DSC/I-T termination board while the main Siemens S5 power supply is energized. Removing a module while under load induces inductive voltage arcs across the SIMATIC I/O bus backplane pins, which can ruin the internal logic gates of the termination board and corrupt the adjacent Siemens CPU registers.

• D-SUB Shielding and Common-Mode Noise Protection:The 9-position D-SUB female network connection features integrated electrical isolation. To preserve this protection barrier, all incoming INTERBUS copper cables must use high-density braided shielding. Connect the cable shield directly to the metal housing of the D-SUB plug to ground high-frequency noise through the PLC chassis, rather than allowing it to penetrate the communication circuitry.

• Parameter Memory Handling Restrictions:The pluggable parameterization memory module must only be extracted or inserted when the PLC rack is completely powered down. Modifying or pulling the memory module while the logic bus is active will cause a fatal memory fault, causing the INTERBUS master controller to halt immediately and dropping all active field output states.

Network Capacity & Hardware Integration

The IBS S5 DSC/I-T 2752000 termination board manages decentralized field network topologies by utilizing a dedicated master configuration interface.

• Adjustable Address Mapping: Offers flexible address configuration across the P-area and Q-area registers ranging from 0 to 255, permitting seamless integration with pre-existing STEP 5 software variable tables.

• Decentralized Device Footprint: Coordinates cyclic data exchange for up to 62 remote fieldbus devices equipped with active parameterization channels.

• Local Plain-Text Diagnostics: Incorporates an integrated four-line LC display directly on the front panel, visualizing real-time operating, error, and I/O bus states in plain text to accelerate commissioning and fault localization.