Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 35

■Available devices
Operand Bit
X, Y, M, L, SM,
F, B, SB

(s1)

(s2)

(s3)
(s4) 

(s5)/(d1)
(d2) 
*1 T, ST, C cannot be used.
Processing details
• Function code (s2) is operated on slave station No. (s1) according to parameters (s3), (s4), and (s5)/(d1). Use 0 as the
slave station No. (s1) for broadcast commands. (Refer to Page 33 Function code and function parameters.)
• The communication execution status (d2) is output according to each status of the ADPRW instruction such as
communicating/completed normally/completed with an error. (Refer to Page 34 Communication execution status
output device.)
■Function code and function parameters
The following table shows the parameter allocation of (s3), (s4), and (s5)/(d1) for each function code (s2).
(s2): Function (s3): MODBUS address
code
Applicable device:  (Refer to the following
applicable devices.)
01H MODBUS address:
Read coils 0000H to FFFFH
02H MODBUS address:
Read inputs 0000H to FFFFH
03H MODBUS address:
Read holding 0000H to FFFFH
registers
04H MODBUS address:
Read input 0000H to FFFFH
registers
05H MODBUS address:
Write coils 0000H to FFFFH
06H MODBUS address:
Write holding 0000H to FFFFH
registers
Word
T, ST, C, D, W, U\G
SD, SW, R
*1
 
*1
 
*1
 
*1
 
*1
 
*1
 
(s4): Device count
Device count:
1 to 2000
Device count:
1 to 2000
Device count:
1 to 125
Device count:
1 to 125
0 (fixed)
0 (fixed)
Double word Indirect
specification
Z LC LZ
   
   
   
   
   
   
(s5)/(d1): Start device storing data
Start device storing read data
Applicable device Word device
 (Refer to the following table of the applicable devices.)
Bit device
 (Refer to the following table of the applicable devices.)
Number of Word device
((s4) + 15)  16 points
occupied points
Bit device
(s4) points
Start device storing read data
Applicable device Word device
 (Refer to the following table of the applicable devices.)
Bit device
 (Refer to the following table of the applicable devices.)
Occupied points Word device
((s4) + 15)  16 points
Bit device
(s4) points
Start device storing read data
 (Refer to the following table of the applicable devices.)
Applicable device
Occupied points (s4) points
Start device storing read data
 (Refer to the following table of the applicable devices.)
Applicable device
Occupied points (s4) points
Start device storing write data
Applicable Word device
*2
device  (Refer to the following table of the applicable devices.)
Bit device
 (Refer to the following table of the applicable devices.)
Occupied points 1 point
Start device storing write data
 (Refer to the following table of the applicable devices.)
Applicable device
Occupied points 1 point
Constant Others
K, H E $
   
   
   
   
   
   
*1
*1
7 FUNCTION
7.1 Master Function
7
33