Send Instruction (Modbus Function Code Unspecified Type) - Panasonic AFP7CPS4E User Manual

8.4.3 SEND Instruction (MODBUS Function Code Unspecified Type)

 Instruction format
 Operand
Items Settings
i Specify the operation unit.
S Specify the header of the source node data area.
n Specify the No. of sent data.
D1 Specify the partner station no.
Specify the initial address of the receiver node data area
D2
in the partner node.
Specify the device area in the source node to save the
D3
execution result code (one word).
(Note 1) Types of devices and transmission methods to be specified for operands [S] and [D2], and MODBUS
function codes to be used for instruction execution vary.
Types of device
to be specified in [S]
16 bit device
WX, WY, WR, WL, DT, LD
1 bit device
X, Y, R, L, DT, n, LD, n
(Note 2) The No. of sent data [n] is on a word basis for register transmission, and on a bit basis for bit transmission.
(Note 3) When "0" is specified for partner station no., global transmission is applied. In this case, no response
message is received from the partner side.
(Note 4) 16 bit device WX, WL, and LD; and 1 bit device X; L; DT, n; and LD, n cannot be specified for the header of
the receiver data in the partner node.
(Note 5): Device that can be specified for [D3] are: WX, WY, WR, WL, DT, LD. Saved as one word in the specified area.
0: Normal completion
1: Communication port is being used for master communication
2: Communication port is being used for slave communication
3: No. of master communication instructions that can be used simultaneously has been exceeded
4: Sending timeout
5: Response reception timeout
6: Received data error
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8.4 MODBUS RTU Master Communication (SEND)
Transmission
method
Register transmission
Bit transmission
Setting range
US / SS
(Note 1)
1 - 127 words, 1 - 2040 bits (Note 2)
H0 - HF7 (0 - 247) (Note 3)
H0 - HFFFF (0 - 65535)
(Note 5)
MODBUS function codes
to be used for instruction execution
Force Multiple Coils (15)
Preset Multiple Registers (16)
Force Multiple Coils (15)
(Note 4)
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