PLCs, Power Supplies & Others

Technical Specifications Overview

Functional Overview and Processing Architecture

This powerful network processor module serves as a communication gateway for ABB control systems. It manages data exchange between multiple field networks and the main controller. The INNPM22 combines serial and Ethernet connectivity in a single compact unit. Moreover, the module handles protocol conversion between different industrial networks. This capability bridges MODBUS RTU devices with MODBUS TCP or PROFIBUS DP networks. The module operates as a standalone processor, offloading communication tasks from the main CPU. Consequently, the primary controller focuses on critical control algorithms.

Communication Interfaces and Protocol Support

The ABB INNPM22 features three independent communication channels for maximum flexibility. Two RS-485 serial ports support MODBUS RTU and ABB INN protocols. One Ethernet port provides 10/100 Mbps connectivity for MODBUS TCP communications. Additionally, the module supports PROFIBUS DP for Siemens-based network integration. Each channel operates independently with its own baud rate and protocol settings. You can configure the module as a protocol converter between any combination of these networks. This versatility simplifies integration in mixed-vendor automation environments.

Memory Architecture and Data Handling

The module incorporates substantial onboard memory for demanding networking tasks. Its 32 MB SDRAM provides ample buffer space for message queuing. The 8 MB flash memory stores firmware, configuration parameters, and system logs. The INNPM22 can buffer up to 1000 pending messages per port. This buffering prevents data loss during network congestion or master polling delays. The module also supports automatic data forwarding and routing rules. You can define custom data mapping between different network protocols.

Physical Architecture and Mounting Details

The module features a robust design with dimensions of 45 mm x 130 mm x 110 mm (1.8″ x 5.1″ x 4.3″) . Its weight of approximately 0.35 kg ensures secure DIN rail mounting. The front panel provides two removable terminal blocks for RS-485 wiring. The Ethernet RJ45 connector offers straightforward network cabling. The module also includes a configuration port for local access. The rear housing integrates a DIN rail latch for vibration-resistant installation. The module’s depth of 110 mm allows adequate clearance for cable management.

Status Indication and Diagnostic Capabilities

The module features six front-panel LEDs for comprehensive status monitoring. A green Power LED confirms correct supply voltage. A Run LED indicates normal processor operation. An Error LED alerts users to configuration or communication faults. Two dedicated LEDs show activity on each RS-485 port. An Ethernet LED indicates link status and network traffic. The module also logs communication statistics and error counters internally. Through the ABB Master Software, you can view detailed diagnostic information. This visibility simplifies troubleshooting and network optimization.

Power Supply and Energy Storage Features

The module draws 120 mA from a 24 VDC external power source. This consumption remains moderate for its processing capability. The internal 470 µF capacitor provides energy storage for brief interruptions. This capacitance allows the module to ride through momentary voltage dips. The module also includes input filtering for power supply noise. This filtering ensures stable operation in industrial environments with electrical interference.

Environmental Conditions and Standards Compliance

The module operates reliably from 0°C to +60°C ambient temperature. Storage temperatures range from -40°C to +85°C. The unit carries CE, UL, and CSA certifications for global deployment. Install the module in a clean, dry control cabinet. The module also complies with IEC 61131-2 standards. This compliance ensures interoperability with other industrial control equipment.

Details