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ABB PCD232｜Communications I/O Module｜
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- Core Functions
32 digital inputs + 32 digital outputs in a single module
Multi-protocol industrial communication
Data forwarding and protocol conversion
Communication Interfaces
Serial ports:
2 × RS-232
1 × RS-485
Ethernet:
1 × RJ45, 10/100 Mbps
Supported Communication Protocols
Modbus RTU
Modbus TCP
RS-232 / RS-485 serial communication
Profibus-DP
I/O Electrical Specifications
Digital Inputs (DI):
24 VDC
Leakage or sourcing type selectable
Digital Outputs (DO):
24 VDC
Maximum load current: 0.5 A per channel
Communication Performance
RS-232 / RS-485 baud rate: 9.6 – 115.2 kbps
Ethernet speed: 10 / 100 Mbps
Key Features
Integrated I/O and CommunicationCombines 32DI / 32DO with multi-protocol communication in one module
Reduces module count, cabinet space, and field wiring complexity
Multi-Protocol Compatibility
Supports mainstream industrial protocols
Easily interfaces with PLC, HMI, SCADA, and third-party field devices
Ideal for mixed networking environments involving both legacy and new systems
Flexible Configuration
DI/DO polarity, communication parameters (baud rate, node address, checksum) configurable via PEC80 programming software
Enables quick adaptation to diverse application requirements
High Reliability
Electrical isolation between I/O channels and communication circuits
Strong immunity to electrical noise and industrial interference
Supports fault self-diagnosis and status reporting for simplified maintenance
Quick Swap Capability
Fully compatible with PCD230 (communication control) and PCD234 (extended I/O) modules of the same series
Supports hot swapping under the PEC80 framework
Allows module replacement without stopping the machine, improving system availability
- Core Functions
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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