西门子840D系统PCU50黑屏维修流程：
一、联系
本地客户既可电话联系，也可直接到我公司（特殊情况我们可提供现场维修服务）；外地客户可以通过电话、手机、E-mail和我们联系，向我们说明您的工控产品的具体型号、故障情况以及服务要求，另我公司备有大量各种品牌备用工控产品（如：PLC、人机界面、变频器、伺服驱动器等），您还可以向我们商务索取免费借用协议书，进行借用。
二、货运
根据您的需要选择合适的货运方式，电话通知我们，并将货运单号发给我司商务，以便我们及时查收。货物运输时请注意包装保护（如用2-3层海绵包裹机器），以防运输过程中出现损坏
三、接收
我们在收到您所需要维修的工控产品后，将在第①时间通知您，核实相关信息，确定维修编号，手工、电子入档，在24小时内给予答复，给出检测报告、维修方案等相关事宜
四、维修协议书、维修合同
西门子840D系统PCU50黑屏维修型号：
6FC5210-0AA00-0AA0 MOD,LI-INTERF- 6FC5210-0AA00-0AA0
6FC5210-0AD21-0AA0 SINUMERIK FM-NC/840D
6FC5210-0DA00-0AA0 MMC 0, COMPO. 6FC5210-0DA00-0AA0 840D
6FC5210-0DA00-1AA0 MMC100.2,8MB 6FC5210-0DA00-1AA0840D
6FC5210-0DA00-1AA1 MMC100.2,12MB 6FC5210-0DA00-1AA1840D
6FC5210-0DA10-0AA0 MMC 1, KOMPO. 6FC5210-0DA10-0AA0 840D
6FC5210-0DA10-0AA1 MMC 101,COMPO. 6FC5210-0DA10-0AA1840D
6FC5210-0DA11-0AA0 SINUMERIK FM-NC/ 840D/DE
6FC5210-0DA20-0AA0 MMC 102,DX2,8MB6FC5210-0DA20-0AA0 840D
6FC5210-0DA20-0AA1 MMC 102, 8MB 6FC5210-0DA20-0AA1840D
6FC5210-0DA20-1AA0 MMC 103 / 16MB 6FC5210-0DA20-1AA0840D
6FC5210-0DF02-0AA0 PCU 50, HMI 6FC5210-0DF02-0AA0810D/840D
6FC5210-0DF03-0AA0 PCU 50 6FC5210-0DF03-0AA0 810D/840D
6FC5210-0DF04-0AA0 PCU 70, WIN 6FC5210-0DF04-0AA0
6FC5210-0DF05-0AA0 PCU 50, WIN 6FC5210-0DF05-0AA0810D/840D
6FC5210-0DF20-0AA0 PCU 50 566MHZ, NT4.06FC5210-0DF20-0AA0
6FC5210-0DF21-0AA0 PCU 50 566MHZ, NT4.06FC5210-0DF21-0AA0
6FC5210-0DF21-2AA0 PCU 50 566MHZ, WIN XP6FC5210-0DF21-2AA0
6FC5210-0DF22-0AA0 PCU 50 1,2GHZ, NT4.06FC5210-0DF22-0AA0
6FC5210-0DF22-1AA0 PCU50 1,2GHZ, WIN20006FC5210-0DF22-1AA0
6FC5210-0DF22-2AA0 PCU50 1,2GHZ, WIN XP6FC5210-0DF22-2AA0
6FC5210-0DF23-2AA0 PCU 50 566MHZ, WIN XP6FC5210-0DF23-2AA0
6FC5210-0DF24-0AA0 PCU70 1,2GHZ, WIN NT6FC5210-0DF24-0AA0
6FC5210-0DF24-2AA0 PCU70 1,2GHZ, WIN XP6FC5210-0DF24-2AA0
6FC5210-0DF25-2AA0 PCU50 1,2GHZ, WIN XP6FC5210-0DF25-2AA0
6FC5210-0DF31-2AA0 PCU50.3-C, WINXP 6FC5210-0DF31-2AA0
6FC5210-0DF33-2AA0 PCU50.3-P, WINXP 6FC5210-0DF33-2AA0
6FC5210-0DA20-1AA1 MMC 103, 32MB 6FC5210-0DA20-1AA1840D
6FC5210-0DA20-1AA2 MMC 103, 32MB 6FC5210-0DA20-1AA2840D
6FC5210-0DA20-2AA0 MMC 103 / 32MB 6FC5210-0DA20-2AA0840D
6FC5210-0DA20-2AA1 MMC 103, 32MB 6FC5210-0DA20-2AA1 840D
