Technical Specifications Power from PLC back‑plane bus; Multiple serial communication ports; Supports multiple serial industrial protocols Operating temperature:0℃~+60℃; Storage temperature:‑40℃~+85℃; Humidity:5‑95% non‑condensing Mounting:PLC rack plug‑in mounting
Functional Features Serial protocol data processing. Data exchange between PLC CPU and external serial devices. Communication fault self‑diagnosis. Front‑panel LED for communication status.
Application Scenarios Serial communication expansion for GE 90‑30 PLC automation system. Connect PLC to serial‑based field instruments. Spare replacement communication module.
Performance Parameters Stable serial‑protocol data transmission. Reliable communication error detection. High‑speed data interaction with PLC CPU.
Material Composition Flame‑retardant plastic housing. Multilayer conformal coated PCB. Serial processing chip, transceiver circuits, back‑plane connector and external serial‑port terminals.
Structural Characteristics Standard 90‑30 rack plug‑in module. Rear connector links PLC back‑plane bus. Front‑panel serial‑communication terminals and LED status indicators. Locking latch for rack‑slot fixation.
Working Principle Module obtains power from PLC back‑plane bus. It handles serial protocol conversion, exchanges data between external serial devices and PLC CPU via internal back‑plane bus.
Installation Requirements Power off PLC rack before installation. Insert module to rack slot and lock latch. Connect external serial device cables. Restore PLC power, configure serial protocol parameters and verify communication status.
Usage Notes Do not hot‑plug under power. Match communication wiring polarity and signal level. Follow anti‑static operation procedures.
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