Technical Specifications PLC Platform: GE Series‑90‑30 PLC Communication Ports: Dual serial ports, RS‑232 / RS‑485 configurable Supported Protocols: SNP, RTU and other serial industrial protocols Operating Temperature Range: 0 ℃ to +60 ℃ Storage Temperature Range: ‑40 ℃ to +85 ℃ Mounting: Series‑90‑30 rack slot‑mount
Functional Features Independent coprocessor handles serial communication tasks. Dual configurable serial interface. Supports peer‑to‑peer PLC communication, HMI connection and host computer data link. Front‑panel LED indicators for port status and module fault diagnosis. Data interaction with PLC CPU via rack backplane bus.
Application Scenarios PLC‑HMI serial connection, multi‑PLC inter‑communication, industrial equipment serial data acquisition, Series‑90‑30 automation system communication expansion.
Performance Parameters Serial baud rate: Wide range configurable Protocol operation: Asynchronous serial industrial communication
Structural Characteristics Standard Series‑90‑30 rack‑mount module housing. Dual serial signal connectors on front edge. LED status indicator group. Rear gold‑plated backplane connector for rack bus.
Working Principle On‑board coprocessor chip manages serial protocol stack independently. It receives data from external serial devices and transfers valid information to PLC CPU memory through backplane bus. Meanwhile it reads required data from PLC memory and sends out through serial ports to external equipment.
Installation Requirements Insert into Series‑90‑30 PLC available rack slot. Complete serial cable wiring according to interface type RS‑232 or RS‑485. Configure communication parameters within PLC programming software. Follow ESD anti‑static operation rules.
Usage Notes Match baud rate, parity and protocol settings between module and connected external devices. RS‑485 network needs proper terminal resistance setting. Power off rack before module replacement.
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