Communicating through a modem, Communicating through the internet – SATEC PM180 Operation Manual User Manual

Page 57

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‎Chapter 6 Using PAS

Setting up Communications

PM180 Substation Automation Unit

55

added to the message transfer time, however, increasing it excessively slows down
communications.
The “Retries” box defines the number of attempts that PAS uses to receive a
response from the device in the event the communication fails before announcing a
communication failure.

Configuring a Serial Port

1. On the Connection tab, select a COM port from the “Device” box,

and then click Configure.

2. Specify the baud rate and data format for the port. Choose the

same baud rate and data format as you have set in the device, and
then click OK.

Communicating through a Modem

Selecting the Communications Protocol

On the Connection tab, click Protocol, and then select the protocol settings as shown
above for a serial port.

Configuring a Modem

1. On the Connection tab, select from the “Device” box a local

modem installed on your PC through which you communicate with
your device.

2. Click on Phones to add the phone number of the remote device to

the phone list.

3. Type the phone number in the “Phone number” box, add

comments if you desire, click Add, and then click OK.

4. From the “Phone number” box on the Connection tab, select the

phone number from the list, and then click OK.

Communicating through the Internet

1. Click on the Connection tab.
2. Click on the “IP address” and type in the IP address of the PM180.
3. In the “Protocol” box, select the communications protocol for the

TCP port. PAS automatically adjusts the TCP port number in the

“Host Port” box, corresponding to the selected protocol. Use the
following references to check the TCP port setting:

502

- Modbus RTU

20000 - DNP3.0

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