From 1fe34bd9cd779c67beece43b4016e2a0192157c9 Mon Sep 17 00:00:00 2001
From: whyclj <1525436766@qq.com>
Date: 星期二, 21 七月 2020 14:17:22 +0800
Subject: [PATCH] 改成改单个寄存器
---
src/com/modbus/util/BaseData.java | 25 ++++++++++++++++++++++++-
1 files changed, 24 insertions(+), 1 deletions(-)
diff --git a/src/com/modbus/util/BaseData.java b/src/com/modbus/util/BaseData.java
index 79f9106..82cfd17 100644
--- a/src/com/modbus/util/BaseData.java
+++ b/src/com/modbus/util/BaseData.java
@@ -4,6 +4,7 @@
import java.nio.ByteOrder;
import com.base.ComBase;
+import com.base.ComFn;
public class BaseData {
@@ -54,6 +55,28 @@
}
/**
+ * 构造单点写入数据
+ * @param value
+ * @return
+ */
+ public byte[] createSingleCollWiriteData(byte[] data) {
+ ByteBuffer bf = ByteBuffer.allocate(ReadByteCount+regcount*2+1);
+ bf.order(ByteOrder.BIG_ENDIAN);
+ bf.putShort(ComBase.changeIntToShort(addrstart)); //接收标识 将寄存器起始地址放在标识中[2个字节]
+ bf.putShort(ComBase.changeIntToShort(0x0000)); //协议标识符
+ bf.putShort(ComBase.changeIntToShort(7+regcount*2)); //下面字节长度
+ bf.put(ComBase.changeIntToByte(unitident)); //单元标识符(设备ID)
+ bf.put(ComBase.changeIntToByte(funcode)); //功能码
+ bf.putShort(ComBase.changeIntToShort(addrstart)); //寄存器起始地址
+ bf.put(data); //目标值
+ bf.flip();
+ byte[] databyte = new byte[bf.limit()];
+ bf.get(databyte);
+ return databyte;
+ }
+
+
+ /**
* 构造多点写入数据
* @param value
* @return
@@ -71,7 +94,7 @@
bf.put(ComBase.changeIntToByte(regcount*2)); //写字节数量
bf.put(data); //目标值
bf.flip();
- byte[] databyte = new byte[ReadByteCount];
+ byte[] databyte = new byte[bf.limit()];
bf.get(databyte);
return databyte;
}
--
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