Panasonic FP-E Programming Manual page 604

High−level Instructions
Specifications for each item
The control data specified by [S1][S1+1] is specified as follows.
[S1]: Specifying transmission unit and transmission method
H0
[S1]:
Word unit Specifies No. of transmisson words (H001 to H07F)
transmission *According to the restrictions on the MODBUS protocol.
H8
[S1]:
Bit unit transmis- Bit No. of remote
sion unit (H0 to HF)
[S1+1]: Specifying the remote unit
H0 fixed
[S1+1]:
Selects COM port
(H1 or H2)
(1) Specifying the transmission unit and transmission method [S1]
If data is to be sent in word units, specify the data volume, and if it is to be sent in bit units, specify the position of the
target bit.
*In word units, the maximum of 127 (7Fh) words can be transmitted as the transmission range is up to 254 bytes.
(2) Specifying the remote unit [S1+1]
Specify the remote unit with the unit number. When H00, it is global transmission. (No response)
Specify either the COM1 or COM2 port from which data is transmitted to the remote unit.
Specify H1 if only one COM port is available.
(3) Specify the area of the local unit by [S2] in which the data to be transmitted is stored
Specify the memory area of the local unit in which the data to be transmitted is stored.
(4) Specify the area of the remote unit for storing by [D] and [N].
Specify 0 for the device No. of [D].
Specify the memory area of the remote unit in which the data to be transmitted is stored, specifying the type D and the
address N in combination.
[D]:DT0, [N]:K100
Example)
DT100
The MODBUS command is created according to the operands specified by [S1],[S1+1], [S2], [D], and
[N].
When being transmitted in word units: The command 06 (DT1 word write), command 15 (Y, R
multi−points write) and command 16 (DT multi−words write) can be transmitted.
When being transmitted in bit units: The command 05 (Y, R single point write) can be transmitted.
The transmission is executed adding the 2 bytes of CRC at the end after the MODBUS command has
been created.
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H0 fixed
Bit No. of local
unit (H0 to HF)
Unit No. (H00 to H63)
(0 to 99)
FPΣ/FP−X/FP0R