CL-NX Cannot Communicate via External Signal (EXT) Miho 16 May 2026 09:56 Updated Applicable models: CL4NX/6NXPlease refer to the below. What to check Countermeasure Are the product and external device connected with a cable correctly? Connect the cable correctly. Rear View Is the power of the external device on? Power on the external device. Are the interface settings of the product set correctly? Set the interface settings of the product again. External I/O Power the product and external device off and then on again if the error cannot be resolved. Powering On/Off the Product[01-01589-EN]