YASKAWA G7 User Manual

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3.3: Verify that the contents of the message adhere to the protocol format as described previously.
3.3.1: Verify that the node address is valid.
3.3.2: Verify that the function code is valid.
3.3.3: Verify that the register address is valid.
3.3.4: Verify that the number of data bytes is valid.
3.3.5: Verify that the CRC is correctly calculated.
3.3.6: Verify that the message requires a response.
4: Verify the contents of the response message.
4.1: Connect an oscilloscope between the controller RXD and GND.
4.1.1: Verify that the message pulse train exists and contains the correct number of pulses. Refer to the chapter
Message Formats for information on the message contents.
4.1.2: Verify that the signal levels adhere to the RS-232 standard.
4.2: Capture the response message sent by the controller in a hexadecimal format and record it below.
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4.3: Verify that the contents of the message adhere to the protocol format as described previously.
4.3.1: Verify that the node address is valid.
4.3.2: Verify that the function code is valid.
4.3.3: Verify that the number of data bytes is valid.
4.3.4: Verify that the register address is valid.
4.3.5: Verify that the CRC is correctly calculated.

YASKAWA G7 Specifications

General

Type	DC Drive
Enclosure Rating	IP20
Overload Capacity	150% for 60 seconds
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Communication Interface	RS-485
Humidity	5 to 95% (non-condensing)
Storage Temperature	-20°C to 60°C (-4°F to 140°F)