ABB CI521-MODTCP S500 Interface Module

Series#: ABB

Product Details

ABB CI521-MODTCP S500 Interface Module – a fully integrated Modbus TCP server for distributed automation I/O.
Combines 4 analog inputs (U, I, RTD), 2 analog outputs (U, I), 8 digital inputs (24 VDC), and 8 digital outputs (24 VDC, 0.5 A) in a single compact unit.
Transistor-based digital outputs with 0.5 A continuous current and fast switching response (0.1–32 ms delay).
IP20 protection rating, ideal for clean indoor control cabinet environments.
Ultra-compact footprint: 67.5 mm (W) × 76 mm (H) × 62 mm (D), net weight only 0.136 kg.
Direct drop-in replacement for existing S500 I/O racks; no additional hardware interfaces required.
Guaranteed 100% Original factory condition, offering fast and secure worldwide delivery.

Specification

The ABB CI521-MODTCP is a powerful S500 interface module engineered for seamless Modbus TCP server communication in distributed automation networks. This versatile unit integrates 4 analog input channels supporting voltage (U), current (I), and RTD sensors, along with 2 analog output channels for voltage and current signals. Additionally, it provides 8 digital inputs rated at 24 VDC and 8 digital outputs delivering 24 VDC at 0.5 A per channel, making it an ideal solution for mid-scale I/O consolidation. The module operates on a 20.4–28.8 VDC supply with a low input current of 5 mA, ensuring energy efficiency. Its IP20 enclosure and compact dimensions (67.5 mm width, 76 mm height, 62 mm depth) allow for easy mounting in standard control panels. With a net weight of just 0.136 kg and a gross weight of 0.159 kg, the CI521-MODTCP is shipped in a single carton (84 × 72 × 71 mm) and is classified under eClass 27-24-26-07 and ETIM 8 EC001604.

Parameter	Specification
Product Type	CI521-MODTCP S500 Interface Module
Communication Protocol	Modbus TCP Server
Analog Inputs	4 channels: Voltage (U), Current (I), RTD
Analog Outputs	2 channels: Voltage (U), Current (I)
Digital Inputs	8 channels, 24 VDC, sink/source type
Digital Outputs	8 channels, 24 VDC, 0.5 A, transistor type
Input Voltage Type	DC
Supply Voltage Range	20.4 – 28.8 VDC
Input Current (module)	5 mA typical
Output Voltage Maximum	20.4 – 28.8 VDC
Output Current per Channel	0.5 A continuous
Delay Time (τ)	0.1 – 32 ms
Degree of Protection	IP20
Net Weight	0.136 kg
Gross Weight	0.159 kg
Dimensions (W × H × D)	67.5 mm × 76 mm × 62 mm
Package Dimensions (L × H × W)	84 mm × 72 mm × 71 mm
Package Units	1 carton
Minimum Order Quantity	1 piece
Order Multiple	1 piece
Selling Unit	Piece
eClass	27-24-26-07
ETIM 8	EC001604 – Fieldbus, decentr. periphery – communication module
UNSPSC	32151705
WEEE Category	5 – Small Equipment (No External Dimension More Than 50 cm)
SCIP Number	efc8d8ea-3ef4-48b2-b474-318eb4321719 (Germany)
CN8 Code	85389091
Made to Order	No