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wu

2024-01-15 733aaaac3ed6a41b78f74c0bcb4d5de7725d788c

 springboot-vue3/src/main/java/com/example/springboot/component/S7control.java

@@ -37,13 +37,21 @@
        }
        return instance;
    }

    
    /**
     * 关闭西门子s7通讯连接
     */
    public void CloseS7client() {
        if (s7PLC == null)
            s7PLC.close();
            s7PLC.checkConnected();
    }

    /**
     * s7通讯连接状态
     */
    public boolean CheckConnected() {
        return s7PLC.checkConnected();
    }

    /**
@@ -215,7 +223,15 @@
        if (s7PLC==null)
             return null;
       // List<String> addresslist = GetAddressList(address, count, 16);
        return s7PLC.readByte(address,count);

        try {
            return s7PLC.readByte(address, count);
        }catch (Exception e) {
            // 处理异常
            System.out.println("读取 " + address + " 失败：" + e.getMessage());
            return null;
        }

    }

    /**
@@ -337,7 +353,7 @@
    try {
        return s7PLC.readTime(address);
    } catch (Exception e) {
        e.printStackTrace();
        System.out.println("读取 " + address + " 失败：" + e.getMessage());
        return null;
    }
}