This product is AC500 series Modbus TCP/Ethernet IP communication expansion module belonging to ABB AC500 PLC control platform, manufactured in accordance with IEC industrial standards and ABB global production specifications. It is a plug-in optional component installed on the dedicated CPU expansion slot, designed to add high-speed industrial Ethernet interface for AC500 controller to realize network data exchange with upper monitoring system, remote PLC and field intelligent devices supporting Ethernet communication protocols.

3BDH is fixed internal coding prefix for ABB AC500 series PLC expansion accessory products.000017 is exclusive material serial number of this Ethernet communication module inside ABB internal product catalog.R1 stands for the first revised hardware version with optimized internal circuit design compared with original prototype.

The module draws working power from CPU internal backplane bus without independent external power supply. Its Ethernet port follows IEEE802.3 standard with 10/100Mbps auto-adaptive transmission rate. Working ambient temperature ranges from -25℃ to +60℃, storage temperature ranges from -40℃ to +85℃, protection grade is IP20 for cabinet inner installation. The whole module passes IEC61000 EMC anti-interference and industrial anti-vibration certification.

Front panel is equipped with standard RJ45 Ethernet port for network cable connection to industrial switch, upper computer and field network equipment. Rear gold finger structure plugs into CPU reserved expansion slot to finish internal data transmission via CPU built-in bus. The module supports Modbus TCP and Ethernet IP communication protocols, and no built-in RS485 or fieldbus terminal is arranged on module body.

It expands independent high-speed Ethernet communication channel for AC500 CPU. It uploads real-time field operation data and fault information to upper SCADA monitoring system through industrial Ethernet, supports inter-PLC network communication as well as remote online program download and debugging. It shortens communication cycle and reduces field wiring quantity compared with traditional serial communication mode.

It is widely installed inside PLC control cabinets of water treatment engineering, packaging automatic production lines, HVAC centralized control, building intelligent monitoring and metallurgical auxiliary automation projects, applied for central control room networking and remote data interaction of distributed field control units.

Cut off total power supply of matched CPU before installation, insert the module vertically into CPU expansion slot until mechanical locking is completed. Connect standard Ethernet cable into RJ45 port and complete IP parameter configuration in PLC programming software as on-site network requirement. Implement routine maintenance every six months, wipe dust on port and module shell with dry soft brush and forbid liquid cleaning solvent. Replace the entire module if persistent network abnormal occurs after excluding cable and switch faults, unauthorized disassembly and internal circuit modification are prohibited.