Rockwell-automation 900 Temperature Controller Communications Function Uživatelský manuál stáhnout pdf (Strana 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

0503

MRC SRC

0503 00D9

22 4 10 4

Response

code

Model No.

Buffer

size

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 102 103

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Rockwell-automation 900 Temperature Controller Communications Function Uživatelský manuál Strana 31