Quantity   Component name
1 × Raspberry Pi 4 No test other RPI version
1 × 7inch dsi touchscreen with RS232/RS485, This screen have speaker and RS485, very good https://www.amazon.com/Raspberry-Touchscreen-Monitor-Capacitive-Display/dp/B08LVC4KRM/ref=sr_1_5?dchild=1&keywords=raspberry+pi+dsi&qid=1612273657&sr=8-5
1 × FX3U PLC--plc logic controller https://item.taobao.com/item.htm?spm=a1z09.2.0.0.8e1f2e8dcpSieV&id=628097876237&_u=23n1djd7f93
1 × 24V PLC Power, 5V Raspberry Power, DB9 line