Op320 - A 3.7 Inch Text Display Hmi Support S485/Rs232 Communication Port Mainly Product Details Specification: ?Introduction?- OP320-A is a small man-machine interface, mainly used with various kinds of PLC (or intelligent controller with communication port) ?Function?- Communication protocol and screen data are downloaded to the display without PLC writing communication program. It has password protection, has alarm list function, line by line real-time display current alarm information. With background light STN liquid crystal display, 24 English characters x 4 lines, that is, 12 Chinese characters x 4 lines. ?Operation?- Make pictures on the computer by editing software TP200CN, input Chinese characters freely and set PLC address, use serial communication to download the screen ?Original Imported Chip?- Made of ABS material original and imported chip, good Anti-shock and stable working performance ?Can Control the Equipment Freely?- Monitor and modify the values and state of the internal registers or relays of the PLC in the form of text or indicator light so that the operator can control the equipment freely Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.