YOKOGAWA KM21 COMMUNICATION CABLE 3M KM21-2N

Description:

The Yokogawa KM21-2N Communication Cable is used in FA-M3 PLC systems to connect sequence CPU modules to external devices such as computers or display units for communication and monitoring. Commonly installed in industrial automation systems where data exchange between PLCs and external equipment is required. Maintenance teams, OEMs, and system integrators use this cable for system communication, programming interface access, and replacement of damaged cables.

Applications:

The Yokogawa KM21-2N is used in industrial automation systems to establish communication between FA-M3 PLC CPUs and external devices for monitoring and data transfer. It is commonly deployed in manufacturing lines, process control systems, and automation panels where engineers need to access PLC data or connect to higher-level systems. The cable is specifically used for higher-level link communication and is not intended for programming tools like WideField.

Technical Specifications:

• Manufacturer: Yokogawa
• Model / Part Number: KM21-2N
• Product Type: Communication / Monitor Cable
• Cable Length: Approx. 3 meters
• Connector Type: SIO port to D-sub 25-pin (male/female configuration depending on side)
• Function: Higher-level link (PC communication interface)
• Compatible CPU Modules: F3SP66-4S, F3SP67-6S
• Interface Type: Serial communication (RS-type signaling)
• Usage Limitation: Not compatible with WideField programming tools
• Connection Port: SIO port on CPU module
• Maximum Insertions: ~1000 cycles (CPU side), ~500 cycles (external side)
• Application Environment: Industrial automation and PLC communication systems

Common Replacements:

• Yokogawa KM21-2T
• Yokogawa KM13-1S
• Yokogawa KM11-2T