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First Steps in Commissioning
Installing the CP 341, Connecting to the Communication Partner
● Plug the bus connection supplied with the CP 341 into the CPU's bus port.
● Hook the CP 341 over the rail, lower the bottom edge into position and install the
securing screws.
● Connect the connections L+ and M of your power supply with the respective connections
on the CP.
● Use the connecting cable to interconnect the CP 341 and your connection partner. The
pin assignment of the interface adapter is detailed in the manual.
Test: Apply line voltage to the power supply module. When the initialization phase
completes, the SF LED on the CP 341 is on.
Assigning parameters for the CP 341
● Open your project in SIMATIC Manager.
● In your project, call the "HW Config" configuration table.
● In the hardware catalog, select the CP 341 with the correct order number and drag it to
the appropriate slot.
● Double-click the CP 341 to open the "Properties CP 341" form.
● Note the module address under "Address" (in the demo this address is 256 → 100 Hex).
You will need this value when you set up the link to your user program.
● Click the Parameters button and select the "ASCII" protocol. Double-click the Envelope.
● Click the OK button to accept the parameter assignment defaults:
– 9600 bps,
– 8 data bits,
– 1 stop bit,
– Even parity.
● Select File > Save to save your parameter assignment settings and exit the form with File
> Exit. In the "Properties CP 341" form, click the OK button.
● Save the configuration in your project by selecting Station > Save and Compile.
● Transfer the configuration with the CPU in STOP mode by selecting PLC > Load to
module. The data is transferred directly to the CPU and the CP 341. The SF LED goes
out to indicate that loading was successful.
● Select Station > Exit to close "HW Config".
6
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CP 341 - First Steps in Commissioning
Getting Started, 09/2008, A5E02291899-01
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