Debug output shows roundtrip time in wrong unit

[HTKB-ZUC]

When enabling debug mode and letting a write command run into a timeout, the displayed roundtrip time is displayed in ms but is not converted from the internal value stored in s. So the shown roundtrip time is 1000 times smaller as it actually was.

Code:

ser = serial.Serial(
    PORT, BAUDRATE, BYTESIZE, PARITY, stopbits=STOPBITS
)
dev = minimalmodbus.Instrument(ser, ADDRESS, debug=True)
dev.serial.timeout = X
dev.write_register(..., ...)

Output:

MinimalModbus debug mode. Will write to instrument (expecting 8 bytes back): ... (x bytes)
MinimalModbus debug mode. Clearing serial buffers for port ...
MinimalModbus debug mode. Sleeping 0.87 ms before sending. Minimum silent period: 1.75 ms, time since read: 0.88 ms.
MinimalModbus debug mode. Response from instrument: 10 90 04 1D C6 (5 bytes), roundtrip time: X ms. Timeout for reading: 200.0 ms.

Solution:

minimalmodbus/minimalmodbus.py

Lines 1510 to 1517 in 785262d

	text = (
	"Response from instrument: {}, roundtrip time: {:.1f} ms."
	" Timeout for reading: {:.1f} ms.\n"
	).format(
	_describe_bytes(answer),
	roundtrip_time,
	timeout_time,
	)

Change roundtrip_time to: roundtrip_time * _SECONDS_TO_MILLISECONDS

[RalphBSz]

This one bit me this morning too, as I was debugging a hardware issue (probably caused by slow turnaround of my RS-485 hardware). I'll try to fix it this evening when I have time.