Chapter 2
2-11
CompoWay/F Communications Procedures
■ Read Controller Attributes
This service reads the model number and communications buffer size.
Service Request PDU
Service Response PDU
1.Model Number
The model number is expressed in 10-byte ASCII. When 10 bytes are not required, the remaining
bytes are filled with spaces.
Example of the Model Number:
The model number will be given as follows for the 3G3JE-A2002B-FLK (maximum motor capacity:
0.2 kW, braking resistance control, RS-485 communications).
2.Buffer Size
The communications buffer size is expressed in 2-byte hexadecimal, and read after being convert-
ed to 4-byte ASCII.
Buffer size: 40 bytes (= H'0028)
3.Response Code
Normal Completion
Error Completion
■ Read Controller Status
This service reads the operating status and error status.
Service Request PDU
Response code Name Description
0000 Normal completion No errors were found.
Response code Error name Description
1001 Command too long The command is too long.
2203 Operation error CPU or EEPROM error
MRC
05
22
03
SRC
MRC
0 00 28503
22 4 10 4
SRC Model No. Buffer sizeResponse code
3G3J E202 BF
MRC
06
22
01
SRC
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