Omron SYSMAC CP Series, Руководство пользователя

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14-43
14 Serial Communications
CP2E CPU Unit Software User’s Manual(W614)
1
4
-7 Mo
db
us-
R
T
U Sla
ve F
unc
tion
14
14-7-2 F
lo
w
of Oper
ation
Built-in RS-2 3 2C, Built-in RS-4 8 5 or Serial Port Tab Page
14-7-2 Flow of Operation
1
Connect CP2E CPU Unit and Modbus-RTU master
device using RS-2
3 2C or RS-422A/4 8 5 ports.
Select Built-in RS2 3 2C, Built-in RS4 8 5 or Serial Port in
the PLC Setup and transfer the PLC Setup from the CX-
Programmer to the CP2E CPU Unit.
• Set the seial communication mode to Modbus-RTU
Slave
• Set the baud rate and format
• Set Modbus Slave address
2
When receiving a Modbus-RTU command from a
Modbus-RTU Master, it automatically responds without a
ladder program.
3
14-7-3 PLC Setup
Parameter Settings
Communications Settings Set the communications settings to the same values as the connected Mod-
bus-RTU master device.
If the connected device is set to 19,200 bps, one stop bit, and even parity,
select the
Cu s tom Option . Set the baud rate to 19,200 and the format to
8 ,1,E .
Mode Select Modbu s RTU Slave .
Modbus Slave Address Set the CP2E slave address.
Wiring comm u nic a tion s
PLC S et u p
Cyclic t as k s
Interr u pt t as k s
Cre a te
l a dder
progr a m