|  |  | 
 |  |  |         OperateResult writeResult; | 
 |  |  |         //任务下发次数 | 
 |  |  |         int writeCount = 0; | 
 |  |  |         //任务下发成功标识 | 
 |  |  |         boolean writeFlag = false; | 
 |  |  |         while(writeCount < 5){ | 
 |  |  |             writeResult = siemensS7Net.Write("DB100.310", staProtocol.getRollback102().shortValue()); | 
 |  |  |             if(writeResult.IsSuccess){ | 
 |  |  | 
 |  |  |                     short rollback = siemensS7Net.getByteTransform().TransInt16(readResult.Content, 0); | 
 |  |  |                     if (staProtocol.getRollback102() == (int) rollback) { | 
 |  |  |                         //任务命令写入成功 | 
 |  |  |                         writeFlag = true; | 
 |  |  |                         log.info("写入输送线命令后返回成功,并且回读成功。输送线plc编号={},{},写入次数={}", slave.getId(), JSON.toJSON(staProtocol), writeCount); | 
 |  |  |                         return; | 
 |  |  |                     } else {//返回结果是成功了,但是真实值不相同 | 
 |  |  | 
 |  |  |                 log.error("写入输送线命令失败。输送线plc编号={},站点数据={},写入次数={}", slave.getId(), JSON.toJSON(staProtocol), writeCount); | 
 |  |  |             } | 
 |  |  |             Thread.sleep(200); | 
 |  |  |         } | 
 |  |  |  | 
 |  |  |         //写命令尝试了5次还是失败了 | 
 |  |  |         if(!writeFlag){ | 
 |  |  |             staProtocol = station.get(staProtocol.getSiteId()); | 
 |  |  |             if (staProtocol.getWorkNo() == 0 && staProtocol.getStaNo() ==0) { | 
 |  |  |                 staProtocol.setPakMk(true); | 
 |  |  |             } | 
 |  |  |             OutputQueue.DEVP.offer(MessageFormat.format("【{0}】写入输送线命令尝试5次失败。输送线plc编号={1},站点数据={2}", slave.getId(), JSON.toJSON(staProtocol))); | 
 |  |  |             log.error("写入输送线命令尝试5次失败。输送线plc编号={},站点数据={}", slave.getId(), JSON.toJSON(staProtocol)); | 
 |  |  |  | 
 |  |  |             //重新添加数据到任务队列 | 
 |  |  |             boolean result = MessageQueue.offer(SlaveType.Devp, slave.getId(), new Task(5, staProtocol)); | 
 |  |  |             read();//读取1次设备状态 | 
 |  |  |             return; | 
 |  |  |         } | 
 |  |  |     } | 
 |  |  |  |