SECTION 2 CompoWay/F Communications Procedures
2-12
■ 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, pad the remaining bytes with spaces.
Example: The following model number is used for the E5CN-Q2HH03T
(voltage output, two alarm outputs, two heater burnout detection inputs,
communications functions, and multiple TC/Pt inputs).
(2) Buffer Size
The communications buffer size is expressed in 2-byte hexadecimal,
and read after being converted to 4-byte ASCII.
Buffer size: 40 bytes (= H’0028)
(3) Response Code
Normal Completion
Error Occurred
Response code Name Description
0000 Normal completion No errors were found.
Response code Name Description
1001 Command too long The command is too long.
2203 Operation error EEPROM error
MRC SRC
0503
22
MRC SRC
0503 0028
22 4 10 4
Response
code
Model No.
Buffer
size
e5cn-Q2HHO
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