Hitachi EH-150 Series - Page 103

Chapter 6 Communication Mode
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Modbus Slave
[EHV-CPU]
TRNS 9 ( WY4A5 , WR0 , M0 )
WR7 = H0000 … Initial setting command
WR8 = 200 … Command timeout time
DR9 =ADR(WR100) … I/O address of sending data area
( WR100 )
DRB = ADR(WR200) … I/O address of receiving data area
( WR200 )
WRD = H0002 … Size of receiving data area
R7E3
s parameter
TRNS 9 command
WR100 = H0022 … No. of send data (byte)
WR101 = H0011 … Communication mode
WR102 = H0001 … Modbus mode (RTU)
WR103 = H180A … Address & waiting time
WR104 = H0000 … I/O mapping (B) (Not used)
WR105 = H0004 … I/O mapping (W) (Division number4)
R7E3
Sending data area
(Parameter for
initialization)
M0
S
TRNS 9 execution
R0
DIF
R7E3
X4A29
WR106 = H0A00
WR107 = H0000
WR108 = H0000
WR109 = H0B00
WR10A = H0000
WR10B = HD000
WR10C = H0B00
WR10D = H1000
WR10E = HE000
WR10F = H0C00
WR110 = H0000
WR111 = HF000
R7E3
I/O No WR0
Modbus address H0000
I/O No WL0
Modbus address HD000
I/O No WL1000
Modbus address HE000
I/O No WM0
Modbus address HF000
Sending data area
(I/O mapping for Word
setting)