7-84
Supported commands
Executable
instructions for
master
Code
(decimal)
Name (MODBUS
original)
Name for FPΣ
Remarks
(Reference No.)
F146 (RECV) 01 Read Coil Status Read Y and R Coils 0X
F146 (RECV) 02 Read Input Status Read X Input 1X
F146 (RECV) 03 Read Holding Registers Read DT 4X
F146 (RECV) 04 Read Input Registers Read WL and LD 3X
F145 (SEND) 05 Force Single Coil Write Single Y and R 0X
F145 (SEND) 06 Preset Single Register Write DT 1 Word 4X
Cannot be issued 08 Diagnostics Loopback Test
F145 (SEND) 15 Force Multiple Coils Write Multiple Ys
and Rs
0X
F145 (SEND) 16 Preset Multiple Registers Write DT Multiple
Words
4X
Not supported 20 Read General Reference Read FL 6X
Not supported 20 Write General Reference Write FL 6X
Cannot be issued 22 Mask Write 4X Register Write DT Mask 4X
Cannot be issued 23 Read/Write 4X Registers Read/Write DT 4X
Note) The items shown in the shaded area are not supported with the FPΣ.
Table for MODBUS reference No. and FP-X device No.
Device name Reference No.
MOD bus FPΣ MODBUS FPΣ (decimal) FPΣ (hexadecimal)
Coil Y 000001 to 002048 0 to 2047 0 to 7FF
Coil R 002049 to 009999 2048 to 9998 800 to 270E
Input X 100001 to 109999 0 to 9998 0 to 270E
Holding register DT 400001 to 432765 0 to 32764 0 to 27FFC
Input register WL 300001 to 300128 0 to 127 0 to 7F
Input register LD 302001 to 302256 2000 to 2255 7D0 to 8CF