INST No. INE-479-P0
Software version 1.0
-18-
5.4.4 Reference table of a digital setting value
Application function Write (Writing): 05/15
Read (Reading): 01 (*) Writing: 05 only
N
o Data name
Setting range Default Reference
1 Smoothing/Real
0,1
0
0: Smoothing 1: Real
2 Preset output
0,1
0
0: OFF 1: ON
3 Measured value hold
0,1
0
0: OFF 1: ON
5 Absorbance displaying mode
0,1
0
0: OFF 1: ON
6 Surface water ratio computation
0,1
0
0: OFF 1: ON
9 Wavelength data logging demand
0,1
0
0: OFF 1: ON (*)
17 Calibration designation
0,1
0
0: OFF 1: ON (*)
25 Ch display part switching demand
0,1
0
0: Constituent No display
1: Calibration curve No display
5.5 Communication check between the master and slave
(Loop back test)
[Function code: 08 (08H)]
Check the communication between the master and slave.
Answer for according to the diagnosis code that was designated.
This device does [the return check that transmits reception data as it is] and the diagnosis code is
"0000H" fixation.
5. MODBUS protocol-Function code
[Example]
Carrying out the loop back test to slave 1.
<RTU mode>
Master
→
Device Device
→
Master
Upper class as personal
IRMA series
Slave address
01H
Slave address
01H
Function code
08H
Function code
08H
Diagnosis code (H)
*1
00H
Diagnosis(H) *1
00H
Diagnosis code (L)
*1
00H
Diagnosis(L) *1
00H
Any data
*
Any data
*
Any data
*
Any data
*
CRC (L)
*2
*
CRC(L) *2
*
CRC (H)
*2
*
CRC(H) *2
*
*1: The writing order is an upper class (H) 8 bits, the subordinate class (L) 8 bits.
*2: The writing order is the subordinate class (L) 8 bits, an upper class (H) 8 bits.
R e m a r k s
