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七、通信端口服务 584有两个通讯端口,一个是连接J_(21)的MODBUS PORT1,另一个是连接RAP上的MODBUS PORT2。两个通信端口都可用来连接P190编程器或其它数字通信设备。在584扫描时间的通信端口服务时间内对这两个端口进行扫描,并显示或修改某些控制参数。通信端口服务内容有: (1)在启动一个全新的控制器之前,首先对控制系统的配置进行必要的参数组态,或在控制器工作时修改组态。 (2)启动或停止584运行。 (3)通过P190编程器修改或加载新的用户逻辑程序。 (4)在调试用户逻辑程序时,强使输入信号或输出线圈为ON或OFF状态,即DISABLE(失效)和ENABLE(有效)功能,也可称作模拟操作功能。 (5)如果P190连接打印机,并请求打印的话,584也是在通信端口服务时间内输出所需要的打印参数。
VII. Communication Port Service 584 has two communication ports, one is MODBUS PORT1 connected to J_ (21) and the other is MODBUS PORT2 connected to RAP. Both communication ports can be used to connect a P190 programmer or other digital communication device. The two ports are scanned during the communication port service time of 584 scan times and some of the control parameters are displayed or modified. Communication port services are: (1) Before starting a new controller, the first configuration of the control system parameters necessary to configure or modify the configuration while the controller is working. (2) Start or stop 584 operation. (3) Modify or load new user logic program with P190 programmer. (4) To force the input signal or output coil ON or OFF while debugging user logic, ie DISABLE and ENABLE functions, also called analog operation functions. (5) If P190 is connected to the printer and requests printing, 584 also prints the required print parameters during the communication port service time.