Rockwell Automation 900 Temperature Controller Communications Functions - Series B - Manual (Page 31)

Publication 900-UM004D-EN-E - July 2010
Bulletin 900 Communications Procedures 900-TCx (CompoWay/F) 2-15
Read Controller Attributes
This service reads the model number and communications buffer size.
Service Request PDU
Service Response PDU
Model Number
The model number is expressed in 10-byte ASCII. When 10 bytes are
not required, pad the remaining bytes with spaces.
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)
217 bytes (= H’00D9) (900-TC8, 900-TC16,
and 900-TC32 Series B)
Response Code
Normal Completion
Error Occurred
Table 2.19
Response Code Name Description
0000 Normal completion No errors were found.
Table 2.20
Response Code Name Description
1001 Command too long The command is too long.
2203 Operation error EEPROM error.
MRC SRC
0 5 0 3
2 2
MRC SRC
0 5 0 3 0 0 D 9
2 2 4 10 4
Response
code
Model No. Buffer
size