✅ Basic Information

Full Name: CI590-CS31-HA: S500, BUS-MODULE, 16DC, 2×CS31, 24VDC, High Availability Redundancy

Installation: 35mm DIN Rail

Connection: Spring Terminals

Protection: IP20

Dimensions: 67.5 × 76 × 62 mm

Weight: Approximately 0.119 kg

Features: Dual CS31 Bus Interface (Redundant), Rotating Address Switch (00–99)

✅ I/O Configuration (16DC Fully Configurable)

16DC Configurable Channels: Software selectable DI or DO

Input: 24VDC, NPN/PNP Universal

Output: 24VDC / 0.5A / Point, Transistor, Short-Circuit Protection

Flexible Configuration: 16DI / 16DO / Mixed Any Ratio

Terminal Unit: Equipped with TU551-CS31 / TU552-CS31

✅ Bus and System (CS31 Redundancy)

Bus Protocol: ABB Private CS31 (RS485)

Interface: 2×CS31 (Redundant Medium), Supports Bus Ring Network / Hot Standby

Mode: CS31 Slave Station, Address Set by Rotating Switch

Compatible PLC: ABB AC500 / AC500-eCo

Expansion: Up to 7 S500 I/O Modules Can Be Expanded

Function: High Availability (HA) Remote I/O, Supports Bus Redundancy Switching

✅ Electrical and Environmental

Power Supply: 24VDC ±10%

Operating Temperature: 0–+60℃ (Horizontal Installation); 0–+40℃ (Vertical Installation)

Storage Temperature: -40–+70℃

✅ Difference from EtherCAT Series (CI590 vs CI511/CI512)

CI590-CS31-HA (1SAP221100R0001): CS31 Bus, Dual Ports Redundancy, 16DC Pure Digital, Old System / High Availability Scenario

CI511-ETHCAT (1SAP220900R0001): EtherCAT, 8DI/8DO/4AI Mixed, High-Speed Motion + Analog

CI512-ETHCAT (1SAP221000R0001): EtherCAT, 8DI/8DO/8DC Pure Digital, High-Speed, High Density

✅ Typical Applications

Old Line Renovation (CS31 Bus): Replace Traditional CS31 I/O, Keep Old Wiring

High Availability System: Dual CS31 Redundancy, Avoid Single Point Failure

Pure Digital High-Density I/O: Logistics, Textile, Packaging, Assembly Line

AC500 Small-Medium System: Economical Remote I/O Solution