Siemens 6ES7241-1CH30-1XB0 Automation Connection Component. Siemens 6ES7241-1CH30-1XB0 is the exact manufacturer order number for a automation connection component in the SIMATIC S7-1200 portfolio. Siemens describes this exact reference as: SIMATIC S7-1200, Communication Board CB 1241, RS485, terminal block, supports Freeport. The verified manufacturer lifecycle record is PM300: Active Product.