Communicating through a serial port, Configuring a serial port, Selecting the communications protocol – SATEC PM174 Manual User Manual

Page 59

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Chapter 4 PAS
Application Software

Setting up Communications

Series PM174 Powermeters

59

your meter’s COM1 port can be equipped with an RS-232/RS-

422/RS-485 serial interface, with a dial-up modem for
communicating through public telephone lines, with an
Ethernet module for communicating through the Internet, or
with a Profibus port. PAS does not support communications
through Profibus.

To configure your communications with the PM174:

1. Select Configuration from the Tools menu. Under the

Communication group on the Instrument Setup tab, select
the type of a connection for your device.

2. Set the device communication address you assigned to

the PM174.

3. In the “Sampling Rate” box, select a rate at which PAS

updates data on your screen when you continuously poll
the device in the PAS Data Monitor.

The communication protocol and port settings in PAS must
match the settings made in your device.

Communicating through a Serial Port

Select Serial Port/Modem Site on the Configuration tab, and
then click on the Connection tab to configure your serial port
settings.

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. The default settings
for the local RS-232 and RS-422/485 ports are 19200
baud, 8 bits with no parity.

Selecting the Communications Protocol

1. On the Connection tab, click Protocol.

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