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INFICON BCG450-SD ATM to Ultra-High Vacuum Triple Gauge (DeviceNet) User Manual

Page 32

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tira40e1 (2005-04) BCG450SDv1.cp

In order to maintain consistency, this device type will only allow connections to
either INT or REAL based Assembly instances (

→ Data Type definition 18).

Once a valid connection is established, attempts to configure connections to a
different type of Assembly instance will return an error.

The I/O Assembly DATA attribute has the format shown below:

Instance

Type

Byte

Bit 0 … 7

1

Input

0

INT Pressure Value (low byte)

1

2

Input

0

Exception Status; Class 48, Instance 1,
Attribute 12

1

INT Pressure Value (low byte)

2

Class 49, Active Value

4

Input

0

REAL Pressure Value (low byte)

1

2

Class 49, Active Instance Value

3

5

Input

0

Exception Status Class 48, Instance 1,
Attribute 12

1

REAL Pressure Value (low byte)

2

Class 49, Active Instance Value

3

4

8

Input

0

Exception Status ; Class 48, Instance 1,
Attribute 12

9

0

Active Instance

1

2

INT Active Pressure Value

3

10

Input

0

Exception Status

1

Active Instance

2

3

INT Active Pressure Value

4

12

Input

0

Active Instance

1

2

REAL Pressure Value

3

4

5

13

Input

0

Exception Status

1

Active Instance

2

3

REAL Pressure Value

4

5

6

3.2 I/O Assembly Object

Instance Data Attribute
Format