我的硬件是SP307 10 连 CPUCPU315-2DP 连 FM350-2 连 模拟量模块 连 数字量模块，软件组态好后，下载不了，提示：The system data cannot be loaded to module CPU315-2(1)-(RO/S2)of station SIMATIC 300 Station.
Look under details or try to determine the cause for the problem using the diagnostic buffer of the modul.
点详细说明出现：The block/op.sys. update is too large.
Cannot load SDB4.
The system data cannot be loaded to module CPU315-2(1)-(RO/S2)of station

急的头出汗，请大家帮帮!