Siemens Touch Panel TP177B PN/DP-6 CSTN. Siemens Article Number 6AV6642-0BA01-1AX1. With 4 fastening elements and connection plug for 24V power supply. CE marking present. The touch panel was used for a test stand and may have minor optical defects like scratches. The device has not been in use for a long time. Functionality was checked (test program together with an S7-300 networking via Profibus-DP with Step7 and WinCC flexible).