SET Not a Modbus Function
(seeAppendix B)
--- Causes Modbus storage to be set to
specified value
Table 3-6. Modbus Addresses
Modbus Storage Textual Address Protocol Address Modbus Functions
Coils C0001 to C9999 0000 to 9998 RCS, FSC, FMC
Inputs I10001 to I19999 0000 to 9998 RIS
Input Registers IR30001 to IR39999 0000 to 9998 RIR
Holding Registers HR40001 to HR49999 0000 to 9998 RHR, PSR, PMR
Table 3-7. Modbus Data Type Specifiers
Specifier Description
int16, short Treat two consecutive bytes as a sixteen bit signed integer
uint16, word Treat two consecutive bytes as a sixteen bit unsigned integer
int32, long Treat four consecutive bytes as a thirty-two bit signed integer
Table 3-5. Modbus Commands (Cont’d)
Mnem Modbus Command
Function
Code Description
3-2. Create the Configuration File
U3-1050 3-14 11/98
Westinghouse Proprietary Class 2C
The following table (Table 3-8) provides more detail about these Modbus data
types. Several values and the corresponding message representation are shown for
each data type.

不设置Modbus功能
（见附录B）
---使Modbus存储设置为
指定值
表3-6。Modbus地址
Modbus存储文本地址协议地址Modbus功能
线圈C0001至C9999 0000至9998 RCS、FSC、FMC
输入I10001至I19999 0000至9998 RIS
输入寄存器IR30001至IR39999 0000至9998 RIR
持有寄存器HR40001至HR49999 0000至9998 RHR、PSR、PMR
表3-7。Modbus数据类型说明符
说明符描述
int16，short将两个连续字节视为16位有符号整数
uint16，word将两个连续字节视为16位无符号整数
int32，long将四个连续字节视为32位有符号整数
表3-5。Modbus命令（续）
Mnem Modbus命令
作用
代码描述
3-2. 创建配置文件
U3-1050 3-14 11/98
西屋专有2C级
下表（表3-8）提供了有关这些Modbus数据的更多详细信息
类型。显示了多个值和相应的消息表示形式
每种数据类型。