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CY3274 Cypress High Voltage Programmable PLC Development Kit Guide, Doc. # 001-53598 Rev. *G
Kit Operation and PLC Control Panel GUI
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Group Address(es)
This field displays the groups to which the node belongs. The local node belongs to a group if its
corresponding checkbox is selected or the Group ID is mentioned in the Single Group Address
field.
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Baud Rate
This field gives the baud rate of the local node. The possible baud rates are 600, 1200, 1800, and
2400 bps.
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TX Delay
This field sets the amount of delay from when the transmission is initiated to when the data starts
being Output from the Transmit Programmable Gain Amplifier. The possible delay durations are
7, 13, 19, and 25 ms.
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FSK Bandwidth
This parameter is used to set the separation of the FSK signals representing logic '1' and logic '0'.
It can either be set to a deviation of 1.5 kHz or 3 kHz. The logic '0' frequency is always 133.3 kHz.
The logic '1' frequency can be configured to either 131.8 kHz or 130.4 kHz.
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TX Gain
This determines the gain of the transmitter's programmable gain amplifier. The possible output
signal amplitude values using the Tx Gain are 55 mV, 75 mV, 100 mV, 125 mV, 180 mV, 250 mV,
360 mV, 480 mV, 660 mV, 900 mV, 1.25 V, 1.55 V, 2.25 V, 3.0 V, and 3.5 V.
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RX Gain
This determines the minimum amplitude of the signal required to get demodulated. The different
values are (in RMS) 5 mV, 2.5 mV, 1.25 mV, 600 µV, 350 µV, 250 µV, and 125 µV.
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BIU Threshold Value
This field sets the threshold for the Band-In-Use detection circuit. This is only applicable when the
Enable Band In Use checkbox is selected. The transmitter does not transmit a packet unless the
level of power line signal on the powerline is less than this threshold. It should be set higher than
the noise on the line, which can be determined by measuring the noise in the Noise
Measurement tab of this GUI.
The possible threshold values are: 70, 75, 80, 87, 90, 93, 96, and 99 dBµV. There are six
additional thresholds (103, 106, 109, 112, 115, and 118 dBµV) for the CY8CPLC20 device with
PSoC Designer 5.1 or later versions.
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BIU Time Interval (Min)
This parameter sets the minimum time interval for which the PLC node scans the powerline
before transmitting a packet. The possible values are 85, 50, 20, and 10 msec. For CENELEC
standard compliance, the setting should be 85 msec. This feature is only available with the
CY8CPLC20 device with PSoC Designer 5.1 or later versions.
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BIU Time Interval (Span)
This parameter sets the span from the lowest possible interval to the highest possible interval.
The possible values are 30, 15, and 5 msec. For CENELEC standard compliance, the setting
should be 30 msec. This feature is only available with the CY8CPLC20 device with PSoC
Designer 5.4 or later versions.
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BIU Timeout Condition
This parameter sets the BIU timeout condition to either 1.1 second or timeout on first BIU
detection. When this option is set to ‘1.1 second’, if the modem detects the BIU, it still tries to
acquire powerline until the powerline is free or up to a maximum of 1.1 second. If this option is set
to ‘first BIU detection’, then the modem returns BIU error on first BIU detection. This feature is
only available with the CY8CPLC20 device with PSoC Designer 5.1 or later versions.
