1SAP170800R0001 is the CM578-CN CANopen master communication module for the ABB AC500 PLC series. It allows the PLC to function as a CANopen master station and establishes stable data connection with various CANopen slave devices including distributed I/O modules, sensors, actuators and drives. Adopting compact DIN rail mounting structure and industrial-grade anti-interference design, this module supports standard CANopen protocols. It delivers reliable and deterministic communication performance, and is widely used in distributed control systems for general machinery, factory automation and process industries.

1SAP170800R0001 is the complete part number of the product. CM578 stands for the communication module series. CN represents CANopen communication protocol. 170800 refers to the base platform of CM578 series and R0001 indicates the corresponding hardware revision. This module is specially developed for AC500 PLC system, and it differs from other communication modules equipped with PROFIBUS, DeviceNet and Ethernet interfaces in the same product line.

The module is powered by 24 V DC with a voltage tolerance of plus or minus twenty percent, and it obtains power through the PLC internal backplane bus. The maximum power consumption is 2.5 watts. It fully complies with standard CANopen protocol and works in master mode. The selectable communication baud rates cover 10 Kbps, 20 Kbps, 50 Kbps, 125 Kbps, 250 Kbps, 500 Kbps and 1 Mbps. It can connect up to 127 CANopen slave nodes on a single bus. The maximum transmission distance varies according to different baud rates. There is 500 V DC electrical isolation between the CANopen network and the PLC internal bus. The operating temperature ranges from minus 25 degrees Celsius to 60 degrees Celsius, and the storage temperature ranges from minus 40 degrees Celsius to 85 degrees Celsius. The protection class is IP20. The product has passed CE, cULus and RoHS certifications. The overall dimension is 135 millimeters by 28 millimeters by 62 millimeters, and the weight is approximately 0.12 kilograms. It is equipped with 5 pin pluggable spring terminals and multiple LED indicators for power supply, running status, network communication and fault alarm.

This module is fitted with one CANopen interface via 5 pin spring terminals for network wiring. It connects to the FBP bus of AC500 CPU to realize high-speed internal data interaction. The built-in electrical isolation structure can effectively isolate external interference and voltage surge from the field network. Users can set baud rate, node address and communication parameters, and complete I/O mapping by importing corresponding EDS files in ABB Automation Builder. A 120 ohm terminal resistor needs to be installed at both ends of the CANopen bus to ensure signal integrity. Onboard LED indicators and system diagnosis functions help users check real-time operating status and quickly locate network faults.

This module acts as a CANopen master to manage all connected slave devices and implement cyclic and acyclic data transmission. It supports multiple baud rate options to adapt to different transmission distance and speed requirements. It is compatible with all standard CANopen devices from different manufacturers. The module supports hot swap operation, so it can be replaced directly without cutting off the power supply of the whole PLC system during maintenance. With excellent electromagnetic compatibility, it can keep stable communication operation in harsh industrial environments. The whole parameter configuration and network debugging work can be completed conveniently through professional supporting software.

It is suitable for various general mechanical equipment and packaging machinery that adopt CANopen distributed control. It is widely applied to factory automation production lines such as automotive manufacturing and material handling. It can be used in water treatment, chemical, pharmaceutical and food processing industries with distributed I/O and field devices. It is an ideal choice for upgrading old CANopen control systems and connecting new AC500 PLCs to existing CANopen networks. It can also cooperate with other communication modules to build multi-protocol hybrid industrial control networks.

Mount the module on standard TH35-15 DIN rail beside the AC500 CPU and connect it to the FBP bus through the internal backplane connector. Connect the CANopen network cable to the 5 pin spring terminals and install terminal resistors at both ends of the bus line as required. Complete parameter configuration, EDS file import and I/O address mapping in ABB Automation Builder before formal operation. Keep the working environment clean, dry and well ventilated, and regularly inspect terminals, cables and wiring conditions every quarter. There are no user-serviceable components inside the module. Replace the module in time if the status LEDs display persistent abnormal states or continuous communication failures.