对MODBUS RTU从设备的OpenHAB2访问

Question

在我的Windows10上运行OpenHab2时，我无法让OpenHAB2请求保存来自串行端口的寄存器数据。端口上看不到MODBUS请求。我安装了NTP-binding (ntp time) (工作正常)，并尝试了Modbus binding 1.12.0，但似乎只对OpenHAB1有效。

我的OpenHAB2配置是

.sitemap

    sitemap boiler label="My home" 
    {
        Frame label="Date" 
        {
          Text item=Date
          Text item=holding1501 label="Holding1501 out[%.1f °C]"
          Text item=holding1500 label="Holding1500 out[%.1f °C]"
        }
    }

.items

    DateTime Date  "Date [%1$tA, %1$td.%1$tm.%1$tY %1$tH:%1$tM:%1$tS]"  { channel="ntp:ntp:local:dateTime" }
    Number holding1501 "Holding1501 [%.1f]" <temperature> {channel="modbus:data:localSerial:holding:holding1501:number"}
    Number holding1500 "Holding1500 [%.1f]" <temperature> {channel="modbus:data:localSerial:holding:holding1500:number"}

和.things

    Bridge modbus:serial:localSerial [port="COM6", id=10, baud=19200, stopBits="1", parity="even", dataBits=8, encoding="rtu"]
    {
        Bridge poller holding [ start=1500, length=1, refresh=1000, type="holding" ] 
        {
            Thing data holding1500 [ readStart="1500", readValueType="int16", writeStart="1500", writeValueType="int16", writeType="holding" ]
            Thing data holding15011 [ readStart="1501", readValueType="int16", writeStart="1501", writeValueType="int16", writeType="holding" ] 
        }
        Thing data holding1500 [ readStart="1500", readValueType="int16", writeStart="1500", writeValueType="int16", writeType="holding" ]
        Thing data holding15011 [ readStart="1501", readValueType="int16", writeStart="1501", writeValueType="int16", writeType="holding" ] 
    }

为了让MODBUS在OpenHAB2中运行，我错过了什么。请参考一些教程或工作示例。

Answer 1

最终找到了解决方案: MODBUS v2.x不支持OpenHAB 2.3.0。使用OpenHAB2 2.4.0 (快照)时，MODBUS RTU工作正常(使用com0com桥接OH2到MOD_RSsim)。无法使MODBUS/TCP正常工作，似乎是IP端口连接问题)