5-18
IM MW100-01E
5.2 Main Module Specifications
Command items: Loading channels: C001 toC300
Writing channels: 001 to 060, A001 to A300, C001 to C300
Address: 1 to 247
Input registers: 30001 to 39999, 300001 to 365535
Hold registers: 40001 to 49999, 400001 to 465535
Type:
Type Description
Int 16 Signed 16-bit integer
Uint 16 Unsigned 16-bit integer
Int 32 - Big Signed 32-bit integer (from upper to lower. )
Int 32 - Little Signed 32-bit integer (from lower to upper. )
Uint 32 - Big Unsigned 32-bit integer (from upper to lower. )
Uint 32 - Little Unsigned 32-bit integer (from lower to upper)
Float - Big 32-bit floating decimal (from upper to lower. )
Float - Little 32-bit floating decimal (from lower to upper)
Modbus Slave Function
Supported function: The functions that the MW100 supports are as follows.
Function Code Function Operation
3 Read hold registers MW100 read communication input data
(4XXXX) 16 written by function code 6 or 16
4 Read Input registers MW100 reads the main instrument’s
(3XXXX) measured, computed, and time data.
6 Simple write to hold MW100 writes to the main instrumentls
registers (4XXXX) communication input data.
8 Loop back test MW100 performs the loop back test on the main
instrument. Main instrument only support message
return (diagnostic code (0x00).
16 Write to hold registers MW100 writes to the main instrument’s
(4XXXX) communication input data.
Register Assign (Modbus Server Functions and Sharing)
Input Registers Data Data Type
30001 Lower byte of measured data of measurement channel 001 Int 32
30002 Upper byte of measured data of measurement channel 001
| |
30119 Lower byte of measured data from measurement channel 060
30120 Upper byte of measured data from measurement channel 060
• No decimal place information.
31001 Lower byte of measured data from measurement channel 001 Float
31002 Upper byte of measured data from measurement channel 001
| |
31119 Lower byte of measured data from measurement channel 060
31120 Upper byte of measured data from measurement channel 060
• Includes decimal place information.
32001 Alarm status of measured data of measurement channel 001 Bit string
| |
32060 Alarm status of measured data of measurement channel 060
• Register structure and alarm status values
Alarm 2 1 4 3
4 bits 4 bits 4 bits 4 bits
0: No alarms 1: Upper limit alarm occurs
2: Lower limit alarm occurs 3: Differential upper limit alarm occurs
4: Differential lower limit alarm occurs 5: Rate of change upper limit alarm occurs
6: Rate of change lower limit alarm occurs
7: Delay high limit alarm occurs 8: Delay low limit alarm occurs