ABB 87TS01I-E GJR2368900R2550 Station Bus Serial Coupler for Procontrol P14 DCS

Product Overview

The ABB 87TS01I-E (ordering code GJR2368900R2550) is a specialized station bus serial coupler and time master module engineered for ABB’s Procontrol P14 distributed control system . As a critical communication gateway within the P14 architecture, the ABB 87TS01I-E serves the essential function of bridging external serial devices—such as engineering stations, diagnostic terminals, serial printers, and third-party PLCs—with the Procontrol P14 station bus . The module does not execute control logic; rather, it acts as a dedicated “translator” that converts RS-232C or RS-422 serial data into the proprietary ABB station bus protocol, enabling seamless integration of peripheral equipment into the DCS network.

What distinguishes the ABB 87TS01I-E from conventional communication cards is its integrated time master functionality. The module distributes a high-precision 5 ms system clock beat to all Procontrol P14 nodes, underpinning accurate sequence-of-events recording and coordinated multi-node control . This dual-role capability—combining external system coupling with precision time distribution—makes the ABB 87TS01I-E indispensable for applications where event causality and timing accuracy are critical. The module is built around a dedicated 32-bit processor that manages timing and communication functions independently of the central CPU, ensuring resilient operation even under fault conditions .

The ABB 87TS01I-E occupies two slots in a standard Procontrol P14 rack and supports online insertion and removal without system shutdown . Upon re-insertion, the module automatically loads its stored EEPROM configuration, restoring operational parameters without requiring engineering downloads . As the Procontrol P14 platform has been formally transitioned to legacy status by ABB, the ABB 87TS01I-E is now available exclusively through aftermarket channels as new surplus inventory or professionally tested refurbished units, making it a critical strategic sp

Category: FUJI

Contact Us WhatsApp / Wechat：+8618150087953
Phone：+86 18150087953
Email：sales@cxplcmro.com

Description

Technical Specifications

Parameter Name	Value
Product Model	ABB 87TS01I-E
Order Code	GJR2368900R2550
Manufacturer	ABB (Sweden)
Product Type	Station Bus Serial Coupler & Time Master Module
System Platform	Procontrol P14 DCS
Serial Interfaces	2 × D-Sub 25-pin (X1, X2), RS-232C or RS-422 selectable
Transmission Rate	300 – 19200 baud (default 9600)
Transmission Distance	RS-232C ≤ 20 m; RS-422 ≤ 1200 m
Time Master Output	5 ms system clock beat
Bus Interface	Procontrol P14 Station Bus (backplane)
Supply Voltage	24 V DC (from backplane)
Current Consumption	340 mA typical
Power Dissipation	8.2 W typical
Isolation Voltage	≥ 2500 V AC
Mounting	P14 rack slot, occupies 2 slots, hot-swappable
Dimensions (approx.)	190 × 100 × 25 mm (standard P14 size)
Operating Temperature	-20°C to +70°C
Safety Compliance	CE, SIL3 (IEC 61508/61511)
Lifecycle Status	Discontinued by OEM, available as spare only

Main Features and Advantages

Dual-Function Communication and Time Master: The ABB 87TS01I-E uniquely combines two critical system-level functions. On the communication side, it translates serial data from external devices into the Procontrol P14 station bus protocol. Concurrently, it serves as the system time master, distributing a precise 5 ms clock beat to all nodes across the DCS network . This synchronization capability is fundamental for high-resolution sequence-of-events recording, ensuring that multiple SOE points are time-stamped with accurate causal ordering. The integrated 32-bit dedicated CPU manages these tasks independently of the central processor, providing autonomous and resilient operation .

Flexible Serial Connectivity with Extended Range: The ABB 87TS01I-E features two independent D-Sub 25-pin serial ports configurable for either RS-232C or RS-422 protocols . For short-range connections up to 20 meters, RS-232C provides direct connectivity to local laptops or terminals. For remote engineering stations up to 1200 meters, RS-422 enables reliable long-distance communication. Baud rates are configurable from 300 to 19200 baud, with a factory default of 9600 baud, ensuring compatibility with a broad spectrum of legacy and modern serial equipment .

Hot-Swap with Auto-Configuration: The ABB 87TS01I-E is designed for maintainability in continuous-process environments. It supports online insertion and removal from a live Procontrol P14 rack without requiring system shutdown . Upon re-insertion, the module automatically reads its stored EEPROM configuration, loading the correct station bus address and operational parameters without DIP-switch reconfiguration or engineering downloads . This auto-configuration reduces mean time to repair to under one minute for field technicians.

Comprehensive Protection and Isolation: The ABB 87TS01I-E is engineered with ≥2500 V AC galvanic isolation between communication interfaces and the system side . This robust isolation protects the DCS core logic from electromagnetic interference, high-voltage spikes, and severe grounding loops that are common in power plant and heavy industrial environments. An integrated hardware watchdog circuit forces the module’s communication lines into a high-impedance safe-disconnect state in the event of internal logic failure, preventing fault propagation across the network .