SATEC PAS - Manual (Page 6)

C O M M U N I C A T I N G W I T H Y O U R M E T E R S
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The remaining settings in this dialog do not normally need to be changed. The
'Response Time-out' box defines the maximum time in milliseconds that PAS will
wait for the meter response before announcing a failure. When communicating
through a modem, especially over long distances, this time may require some
adjustment.
The 'Break Time-out' box defines the maximum idle time that PAS will wait after
receiving the last message character to close a connection. This setting is important
only when PAS is running the Modbus RTU or DNP3 protocol. It does not affect
ASCII communications. The default value of 10 ms is usually sufficient for reliable
communications, but it can be affected by the load on your PC. If there are many
applications running on your PC, PAS might be prevented from responding to
received characters fast enough, so it might close the communication while the
meter is still transmitting its response message. If you frequently receive the
message 'Communication failed', this could mean that 'Break Time-out' should be
increased. Note that this time is added to the message transfer time, and increasing
it excessively will slow communications.
The 'Retries' box defines the number of attempts that PAS will use to receive a
response from the meter in the event the communication fails before announcing a
communication failure.
Communicating through a Serial Port
On the 'Connection' tab, select from the 'Device' box a COM port and click on
'Configure' to specify the baud rate and data format for the port. Choose the same
baud rate and data format as you have set in the meter, and then click 'OK'.