List Of Modbus Rtu Supported Commands; List Of Modbus Function Codes - Panasonic FP7 Series User Manual

8.2 List of MODBUS RTU Supported Commands

8.2.1 List of MODBUS Function Codes

■
Table of supported commands
Code Name (MODBUS)
01 Read Coil Status
02 Read Input Status
03 Read Holding Registers
04 Read Input Registers
05 Force Single Coil
06 Preset Single Register
08 Diagnostics
15 Force Multiple Coils
16 Preset Multiple Registers
22 Mask Write 4X Register
23 Read/Write 4X Registers
(Note 1) Types of MODBUS function codes vary by instructions to be used.
■
Correspondence table for MODBUS reference No. and device No.
MODBUS reference No.
Coil
Input
Holding register
Input register
(Note 1) The table above indicates correspondence between the MODBUS reference numbers for accessing
from a higher device to FP7 using the MODBUS protocol, and the operation device numbers of FP7.
WUME-FP7COM-07

8.2 List of MODBUS RTU Supported Commands

Name
Read Y and R Coils
Read X Contact
Read DT
Read WL and LD
Write Single Y and R
Write DT 1 Word
Loopback Test
Write Multiple Y's and R's
Write DT Multiple Words
Write DT Mask
Read/Write DT
000001 to 002048
002049 to 034816
100001 to 108192
400001 to 465536
300001 to 301024
302001 to 318384
Remarks
(Reference No.)
0X
1X
4X
3X
0X
4X
-
0X
4X
4X
4X
Data on BUS
(hexadecimal)
0000 to 07FF
0800 to 87FF
0000 to 1FFF
0000 to FFFF
0000 to 03FF
07D0 to 47CF
FP7 supported
functions
●
●
●
●
●
●
-
●
●
-
-
PLC device number
Y0 to Y127F
R0 to R2047F
X0 to X511F
DT0 to DT65535
WL0 to WL1023
LD0 to LD16383
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