User manual

Installation and Configuration
368
33002479 06 07/2008
Connecting the
PC to the PLC
with a Modbus
Cable
Proceed as follows to connect the PC to the PLC with Modbus.
Step Action
1 Ensure that the Quantum system is powered up.
2 Connect the PLC to the PC with a Modbus cable.
3 On the PC, click the Unity Pro PLC\Set Address tab to bring up the Set Address
menu.
4 Select MODBUS01 in the PLC Media field.
5 Enter the Modbus address in the PLC Address field (the default address is 1).
Note: You can also use the keypad on the 140 CPU 651 50 module to enter or change
the Modbus address.
6Click OK.
7 Proceed to Downloading and Running the Configuration Program (below).
CC Memory (KB)
Set Address
SETUP1.PRJ
236
Media
PLC
Address
MODBUS01
Communication Parameters
Simulator
Address
Media
127 . 0 . 0 . 1
TCPIP
Communication Parameters
?
Bandwidth
TestConnection
Ok
Cancel
Help
1