Communications Port; Communications Settings - ETC Sasquatch User Manual

2.3 Communications Port

The Sasquatch also provides a serial communications port. This is a standard 2 wire RS-485 differential
signal with a common (ground). It is used for accessing settings, reading the device status and history,
upgrading firmware, and configuring the operating mode.
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A/B – Two wire RS-485 Differential Signal
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COM – An additional ground connection to be used with an RS-485 connection.

2.3.1 Communications Settings

The settings for the communications port are fully configurable so that the Sasquatch can be used with
any other RS-485 compatible communication device. The following outlines the parameters that can be
configured.
2.3.1.1 Baud Rate
This is the data rate, represented in bits per second. The default is 9600 bps. The following are the
available rates:
• 1200 bps
• 2400 bps
• 4800 bps
• 9600 bps
• 19,200 bps
• 38,400 bps
• 56,000 bps
• 115,200 bps
• 128,000 bps
• 256,000 bps
2.3.1.2 Parity
The parity can be configured as no parity, even, or odd.
2.3.1.3 Data Bits
This is the number of data bits used to send one byte of data. It can be configured to 7 or 8, which is the
default.
2.3.1.4 Stop Bits
This is the number of bits that are appended at the end of the data to indicate the end of byte. The
default is 1 stop bit, but can be configured to 2.
2.3.1.5 Station Address
This is the Modbus slave station address. It is used to distinguish one Modbus slave from another and
must be unique on a given network. It can be configured between 1 and 247. The default is 1.
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