fix some bugs

code/openapi.py

@@ -139,6 +139,13 @@ class ModbusRequest(object):
         clibs.logger.info(f"40018-{action} 执行{actions}安全区 safe region 03")
         sleep(clibs.interval)
 
+    def r_write_signals(self, addr: int, value):  # OK | 40100 - 40109: signal_0 ~ signal_9
+        if -1 < addr < 10 and addr.is_integer():
+            self.__c.write_register(40100+addr, value)
+            clibs.logger.info(f"{40100+addr}-{value} 将寄存器 signal_{addr} 赋值为 {value}")
+        else:
+            clibs.logger.error(f"{40100+addr}-{value} 地址错误，无法赋值！")
+
     @property
     def w_alarm_state(self):  # OK
         res = self.__c.read_holding_registers(40500, 1).registers[0]
@@ -418,7 +425,10 @@ class HmiRequest(object):
                     return res.get("data", f"{msg_id} has no data item")
                 sleep(clibs.interval*2)
             else:  # 尝试在上一次分割的日志中查找，只做一次
-                res = find_response("".join([clibs.log_path, sorted(listdir(clibs.log_path))[-3]]))
+                try:
+                    res = find_response("".join([clibs.log_path, sorted(listdir(clibs.log_path))[-3]]))
+                except IndexError:
+                    res = None
                 if res is not None:
                     return res.get("data", f"{msg_id} has no data item")
         elif flag == 1:
@@ -428,7 +438,10 @@ class HmiRequest(object):
                     return res
                 sleep(clibs.interval*2)
             else:
-                res = find_response_xs("".join([clibs.log_path, sorted(listdir(clibs.log_path))[-3]]))
+                try:
+                    res = find_response_xs("".join([clibs.log_path, sorted(listdir(clibs.log_path))[-3]]))
+                except IndexError:
+                    res = None
                 if res is not None:
                     return res
         self.__sth_wrong(11, f"无法找到请求 {msg_id} 的返回结果")