1P 6ES7972-0BA42-0XA0西门子DP数据总线接头6ES7972-OBA42-OXAO ¥120.00 1P 6GK1900-0AB10西门子C-PLUG网络模块6GK1900-OAB1O现货 ¥200.00 6ES7972-0BA12-0XA0西门子DP数据总线连接器6ES7972-0BA12-OXAO ¥160.00 1P 6GT2811-4AA00-1AA1西门子RF630R FCC 读写器6GT28114AA001AA1 ¥8200.00 6GT2801-2BA10西门子SIMATIC RF300读取器RF340R 6GT28012BA10 ¥2500.00 1P 6ES7142-4BF00-0AA0型号齐全ET200PRO8 DO DC 6ES71424BF000AA ¥550.00