User`s manual

SH-300 User’s Manual Connection with PLC
Page 83 of 103
If Registers are addressed starting at B1, W1,DW1. Allocation map of memory address is shown
as following:
Register
address
Double
word
DW1 DW3 ……
word W1 W3 W5
W7 ……
byte B1 B2 B3 B4 B5 B6 B7 B8 ……
Coil address
M8
∣
M15
M16
∣
M23
M24
∣
M31
M32
∣
M39
M40
∣
M47
M48
∣
M55
M56
∣
M63
M64
∣
M71
……
……
Example: Write the double word values of 075BCD15 into Register DW0, the value of per byte is
distributed as following:
The value of DW0 is 075BCD15 when Register is addressed as double word. The value of W0 is
CD15, W2 is 075B when Register is addressed as word. The value of B0 is 15, B1 is CD, B2 is
5B, B3 is 07 when Register is addressed as byte.
2. Connection guidance of special cable
FREE-RS232
SH-300 side
2 RXD TXD
（9 PIN D shape ）
3 TXD RXD
Slave device
Female plug
5GND GND
side
FREE-RS485
1 TD+
RD+
SH-300 side
9 RD+ TD+
Slave device
（9 PIN D shape ） 6 TD- RD-
side
Female plug
8 RD-
TD-
5 GND GND
FREE-RS422
1 TD+ RD+
SH-300 side
9 RD+ TD+
Slave device
(9PIND shape)
6 TD- RD-
side
Female plug
8 RD- TD-
5 GND GND
The address of double word
DW0
The address of word
W2 W0
The address of byte
B 3 B2 B1 B0
set value
07 5B CD 15