Modbus Communication Instruction - Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual

15.3

MODBUS Communication Instruction

ADPRW
This instruction allows the MODBUS Master to communicate (read/write data) with the Slaves.
Ladder diagram
(s1)
FBD/LD
EN ENO
s1 d2
s2
s3
s4
s5d1
Setting data
■Descriptions, ranges, and data types
Operand Description
(s1) Slave station No.
(s2) Function code
(s3) Function parameters depending on the function code
(s4) Function parameters depending on the function code
(s5)/(d1) Function parameters depending on the function code
(d2) Head bit device number to which the execution status of
the communication is output
EN Execution condition
ENO Execution result
*1 Slave station No. that can be used in FX5 master station differs depending on the version. (Page 1097 Added and Changed
Functions)
■Applicable devices
Operand Bit
X, Y, M, L, SM,
F, B, SB, S

(s1)
(s2) 

(s3)
(s4) 

(s5)/(d1)

(d2)
*1 T, ST, C cannot be used.
15 EXTERNAL DEVICE COMMUNICATION INSTRUCTION
834
15.3 MODBUS Communication Instruction
(s2) (s3) (s4) (s5)/(d1) (d2)
Word
T, ST, C, D, W,
SD, SW, R
*1

*1

*1

*1

*1

*1

Structured text
ENO:=ADPRW(EN,s1,s2,s3,s4,s5d1,d2);
Range
*1
0 to F7H
01H to 06H, 0FH, 10H
0 to FFFFH
1 to 2000




Double word Indirect
U\G Z LC
  
  
  
  
  
  
Data type
16-bit signed binary
16-bit signed binary
16-bit signed binary
16-bit signed binary
Bit/16-bit signed binary
Bit
Bit
Bit
Constant
specification
LZ K, H
  
  
  
  
  
  
Data type (label)
ANY16
ANY16
ANY16
ANY16
ANY_ELEMENTARY
ANYBIT_ARRAY
(Number of elements: 3)
BOOL
BOOL
Others
E $
  
  
  
  
  
  