Emerson Process Management 1500 manual If an error message appears

Connecting with ProLink II Software

Table 2-1Modbus connection parameters for ProLink II

	Connection type
Connection parameter	Configurable (RS-485 mode)	SP standard (service port mode)
Protocol	As configured in transmitter	Modbus RTU(1)
	(default = Modbus RTU)
Baud rate	As configured in transmitter (default = 9600)	38,400(1)
Stop bits	As configured in transmitter (default = 1)	1(1)
Parity	As configured in transmitter (default = odd)	none(1)
Address/Tag	Configured Modbus address (default = 1)	111(1)
COM port	COM port assigned to PC serial port	COM port assigned to PC serial port

(1)Required value; cannot be changed by user.

7.Click the Connect button. ProLink II will attempt to make the connection.

8.If an error message appears:

a.Swap the leads between the two terminals and try again.

b.Ensure you are using the correct COM port.

c.If you are in RS-485 mode, you may be using incorrect connection parameters.

-Connect in service port mode and check the RS-485 configuration. If required, change the configuration or change your RS-485 connection parameters to match the existing configuration.

-If you are unsure of the transmitter’s address, use the Poll button in the Connect window to return a list of all devices on the network.

d.Check all the wiring between the PC and the transmitter.

8 Micro Motion® Model 1500 Transmitters with the Filling and Dosing Application