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8 Micro Motion
®
Model 1500 Transmitters with the Filling and Dosing Application
Connecting with ProLink II Software
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.
Table 2-1 Modbus connection parameters for ProLink II
Connection type
Connection parameter Configurable (RS-485 mode) SP standard (service port mode)
Protocol As configured in transmitter
(default = Modbus RTU)
Modbus RTU
(1)
(1) Required value; cannot be changed by user.
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