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PowerLogic™ PM5500 series user manual Chapter 4—Remote meter setup
HRB1684301-01 49
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.
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
RS-485 port settings
Parameter Values Description
Protocol
Modbus RTU, JBus,
ASCII 8, ASCII 7
Select the communications format used to transmit
data. The protocol must be the same for all devices in a
communications loop.
ION Setup does not support ASCII 8, ASCII 7 or JBus
protocols.
Address 1 to 247
Set the address for this device. The address must be
unique for each device in a communications loop. For
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.
Baud Rate 9600, 19200, 38400
Select the speed for data transmission. The baud rate
must be the same for all devices in a communications
loop.
Parity Even, Odd, None
Select None if the parity bit is not used. The parity
setting must be the same for all devices in a
communications loop.