Multitech MultiModem MTCBA-G-F4 Manual de usuario descargar pdf (Pagina 9)

5. ION Meter Communications Setup

By establishing a Modem connection to the ION meter, we are making a serial

connection between the ION-E Server and the remote station. The physical layer of

the communication is similar to having an RS-232 serial cable linking the Server and

the ION meter. For this reason, minimal configuration is required for the ION 7650

with regards to the wireless modem connection.

1) Ensure that the Serial Port connected to the wireless modem is configured for the

same Baud Rate that you set for the modem (e.g., 9600bps).

2) Ensure that the Protocol on the 7650 meter COM port is set to “ION.” For

PowerLogic PM meters, it should be set to Modbus RTU.

If you are connecting the ION 7650 to the modem using an RS-232 cable, ensure

that the Comm Port of the 7650 (e.g., COM1) is correctly set for RS-232 mode.

7650 Serial Port Rx Timeout Setting

If you are using Acknowledgement (AckNaks) to detect errors in the communication

link between the ION7650 meter and the ION-E server, you may need to adjust the

Receive Timeout on the COM port of the ION7650 meter. This makes the link more

tolerant of long delays (e.g., ION-E is slow in responding to the meter).

We received reports that values such as 15 seconds were used in Hong Kong and

Australia for ION7650 meters.

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Multitech MultiModem MTCBA-G-F4 Manual de usuario Pagina 9