Siemens西门子代理商6DL1164-6JH00-0PH1

MODBUS MASTER:

先组态硬件,如下所示:

打开OB1,进行编程,如下所示:

先调用初始化的块 MODBUS COMMONLOAD

管脚说明:

REQ: 指令起始于上升沿（0 到 1）。

PORT: 安装并组态完 CM 后，便可在设备组态的“硬件ID”(Hardware ID) 属性中找到 CM 端口值。符号端口名称在 PLC 变量表的“系统常数”(Systemconstants) 选项卡中指定。就是前面提到的硬件标识符

BAUD: 选择数据传输速率：

1 = 300, 2 = 600, 3= 1200, 4 = 2400, 5 = 4800, 6 = 9600, 7 = 19200, 8 = 38400, 9 = 57600, 10 =76800, 11 = 115200 bit/s。所有其它值无效。

PARITY: 选择奇偶校验：

·        0 – 无

·        1 – 奇校验

·        2 – 偶校验

RESP_TO: 响应超时：

5 ms 到 65535 ms - Modbus_Master 等待从站响应的时间（以毫秒为单位）。如果从站在此时间段内未响应，Modbus_Master 将重复请求，或者在指定数量的重试请求后取消请求并提示错误（请参见下文，RETRIES 参数）。

MB_DB:用MODBUS MASTER的背景数据块里面的一部分,如下所示:

对 Modbus_Master 或Modbus_Slave 指令的背景数据块的引用。必须以 Modbus_Master 或 Modbus_Slave 指令的 MB_DB 参数替换 MB_DB 参数（静态，在指令中不可见）。

调用MODBUS MASTER 的功能块,如下所示:

管脚说明如下所示:

REQ;是脉冲信号,给一次脉冲,收发一次

MB_ADDR:是从站地址

MODE:读写模式,0是读,1是写

DATA_ADDR:对应功能码

LEN:数据长度

DATA_PRA:接收或发送的存储区域

上述是模式和功能码的对应关系

除上述做法,还需要设置一个地方:

打开MODBUS COMMON LOAD的背景数据块,如下所示:

将MODE 设置成4

上述是主站的

说一下从站的设置:

前面参数和主站是一样的,就是调用MODBUS SLAVE需要说明一下:

MB_ADDR: MODBUS 的从站地址

MB_HOLD_REG:这对应的是40001的功能码

例如00001的功能码对应的是     Q0.0

10001 ------I0.0

30001-------IW0

其余和主站设置一样.

Source: Siemens 6DL1164-6JH00-0PH1 Authorized Dealer - Hunan Xikong Automation Equipment Co.,Ltd.

The Siemens 6DL1164-6JH00-0PH1 is a high-quality PLC (Programmable Logic Controller) manufactured by Siemens, a renowned global leader in automation technology. As an authorized dealer for Siemens PLCs, Hunan Xikong Automation Equipment Co.,Ltd is proud to offer this product to our valued customers in China. Our company has been appointed as the exclusive distributor of Siemens products in Hunan province, providing customers with access to genuine and original Siemens PLCs.

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As an authorized dealer of Siemens PLCs, Hunan Xikong Automation Equipment Co.,Ltd is committed to providing our customers with exceptional products and services. We understand the importance of reliable automation solutions in maximizing operational efficiency and productivity.

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