Parker Hannifin
3. Ensure that the RS-232 or RS-485 cabling is connected prior to applying
power to the controller. Upon power-up, the controller detects physical
settings on the COM1 connector and configures the connection
accordingly.
Testing the COM Port
Test COM1 port communications using the ACR-View.
1. Cycle power on the ACR90x0; this puts the controller in AutoBaud.
2. On the ACR-View
Project Tree:
1. Select your ACR90x0 model.
2. Under the
Communications box, select Serial.
3. Specify your COM port settings.
4. Click the
Connect button.
5. Select the
Terminal Emulator.
6. Type
VER and press the ENTER key. You should see a response.
Table 62 contains the COM-port-test error messages and their resolutions.
For more information, see “COM1 Connection” on pages 72 through 75.
COM Port Error Message Resolution
Invalid COM port number Select a different COM port.
Unable to open COM port No COM port has been specified, or the COM
port is being used by other software. Select a
different COM port.
No response from ACR90x0 controller Power is not supplied to the controller, the
controller is not powered up, the power
connection is wired incorrectly, or the
RS-232/RS-485 cable is wired incorrectly.
Check the controller to verify that the power
supply is connected, wired correctly. Then apply
power to the controller. Verify the wiring on the
RS-232/RS-485 cable.
Incorrect response from ACR90x0
controller
Verify that an ACR90x0 controller is connected to
the selected COM port.
OS needs to be downloaded Download the operating system to the ACR90x0
controller.
Cycle power and download OS The ACR90x0 controller has encountered an
error while downloading an operating system.
Cycle power to the controller and download the
operating system again.
Table 62 Communications Port Error Messages and Resolutions
102 ACR9000 Series Hardware Installation Guide
www.comoso.com
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