Instruction Manual

5. Modbus RTU
103
Modbus
5.3.18 Total Time after Power On Reading <<STIM>>
(1) Function
This bit reads the total time since the controller power was turned on. The unit is ms.
The timer value is not cleared by software reset.
(2) Query format
Field Number of data items
(number of bytes)
RTU mode
8-bit data
Remarks
Start None Silent interval
Slave address [H] 1 Arbitrary Axis number + 1 (01
H
to 10
H
)
Function code [H] 1 03 Register reading
Start address [H] 2 9010 System timer
Number of registers [H]
2
0002 Reading addresses 9010
H
to
9011
H
Error check [H] 2 CRC (16 bits)
End None Silent interval
Total number of bytes 8
(3) Response format
A response message contains 16 bits of data per register.
Field Number of data items
(number of bytes)
RTU mode
8-bit data
Remarks
Start None Silent interval
Slave address [H] 1 Arbitrary Axis number + 1 (01
H
to 10
H
)
Function code [H] 1 03 Register reading
Number of data bytes [H] 1 04 Reading 2 registers = 4 bytes
Data [H] 4 System timer System timer [Hex]
The unit is ms.
Error check [H] 2 CRC (16 bits)
End None Silent interval
Total number of bytes 9