Schneider Electric HRB1684301-01 Using a serial communications converter to set up RS-485

Models: HRB1684301-01

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PowerLogic™ PM5500 series user manual

Chapter 4—Remote meter setup

 

 

Using a serial communications converter to set up RS-485

NOTE: Configuring the serial communications settings using this method may cause ION Setup to lose communications when the changes are sent to your meter. You must reconfigure ION Setup to match the new settings to re-establish communications with your meter.

1.Configure the serial communications converter’s settings to be compatible with the meter’s default serial communications settings.

2.Connect the meter’s RS-485 port to the serial communications converter.

3.Connect the communications converter to the computer.

4.Start ION Setup in Network mode.

5.Add a serial site and set its properties:

Comm Link = Serial

Comm Port = select which serial (or USB) port the communications converter is attached to

Baud rate = 19200

Format = select a format with even parity

6.Add a meter to the site and set its properties:

Type = PowerLogic PM5000 series Power Meter

Unit ID = 1

7.Use the setup screens to modify the meter’s setup parameters.

8.Use the RS-485 Base Comm setup screen to modify the meter’s serial communications settings.

RS-485 port settings

Parameter

Values

Description

 

 

 

 

 

Select the communications format used to transmit

 

Modbus RTU, JBus,

data. The protocol must be the same for all devices in a

Protocol

communications loop.

 

ASCII 8, ASCII 7

ION Setup does not support ASCII 8, ASCII 7 or JBus

 

 

 

 

protocols.

 

 

 

 

 

Set the address for this device. The address must be

 

 

unique for each device in a communications loop. For

Address

1 to 247

JBus protocol, set the device ID to 255.

This value is used in both Ethernet and serial

 

 

 

 

communications; you may need to update your Ethernet

 

 

settings to re-establish Ethernet communications.

 

 

Select the speed for data transmission. The baud rate

Baud Rate

9600, 19200, 38400

must be the same for all devices in a communications

 

 

loop.

 

 

Select None if the parity bit is not used. The parity

Parity

Even, Odd, None

setting must be the same for all devices in a

 

 

communications loop.

9.Click Send to save your changes to the meter. You need to reconfigure ION Setup to match the changed settings in order to re-establish communications with your meter.

NOTE: If you set the protocol to ASCII 7, ASCII 8 or JBus, you cannot use ION Setup to reconnect to the meter — ION Setup does not communicate using these protocols.

10. Exit ION Setup.

Using an Ethernet gateway to set up RS-485

NOTE: Configuring the serial communications settings using this method may cause

ION Setup to lose communications when the changes are sent to your meter. You must

HRB1684301-01

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