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High
−
level Instructions
3
−
366
Explanation of command
Command 01 (Y, R coil read) send
Example) When the 1 bit of Y17 is readed from the unit No. 17 of the remote unit, and a command to transmit
the readed bit data to the 5th bit of the DT100 in the local unit is sent from the COM1.
[ F146 (RECV), DT10, WY0, K1, DT100 ]
[S1]:
H8
H5
H7
DT10
Bit No. of local unit
(H0 to HF)
Bit No. of remote unit
(H0 to HF)
Bit unit
transmission
H0 fixed
*Bit units (H8) should be specified for the transmission method of [S1] to read only 1bit of data by the
command 01.
[S1+1]:
H1
H1
H1
DT11
Unit No. (H01 to H63)
(1 to 99)
Selects COM port
(H1 or H2)
H0 fixed
MODBUS commands
Slave address
Command (01H)
Starting No. of read (H)
Starting No. of read (L)
Quantity to read (H)
Quantity to read (L)
CRC16 (H)
CRC16 (L)
11
01
00
17
00
01
DC
59
1
2
3
4
5
6
7
8
Command
conversion
*Specify the coil No. of the destination for the starting
No. of read. (Remote unit: Y17)
The quantity to read should be 1.
[S1]: DT10(DT10=8507H, DT11=1011H)
[S2]: WY0
[N] : K1
[D] : DT100
Example) When the 64 bits (4 words) of data from Y10 to Y4F is readed from the unit No. 17 of the remote unit,
and a command data to the area starting with DT100 in the local unit is sent from the COM1.
[ F146 (RECV), DT10, WY0, K1, DT100 ]
Specifies No. of transmission words
(H001 to H07F)
[S1]:
Word unit
transmission
H0
H0
H0
H4
DT10
*Bit units (H0) should be specified for the transmission method of [S1] to read in word units by the command
01.
Unit No. (H01 to H63)
(1 to 99)
[S1+1]:
Selects COM port
(H1 or H2)
H1
H1
H1
DT11
H0 fixed
* Specify the coil No. of the destination for the starting
No. of read. (Remote unit: Y10)
The quantity to read should be the value of “No. of
specified words X 16”. (64
−
bit read)
[S1]: DT10 (DT10=0004H, DT11=1011H)
[S2]: WY0
[N]: K1
[D]: DT100
Command
conversion
MODBUS commands
Slave address
Command (01H)
Starting No. of read (H)
Starting No. of read (L)
Quantity to read (H)
Quantity to read (L)
CRC16 (H)
CRC16 (L)
11
01
00
10
00
40
3E
AF
1
2
3
4
5
6
7
8
FP
Σ
/FP
−
X/FP0R
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
Summary of Contents for FP-E
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