Control and Status Byte IP/IE3312
Process Data Mode
Control Byte
The Control byte is only visible, if the Fieldbus Box is operated in complete mode. The byte is located in the output image, and can be read or written.
|
Bit |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
|
Name |
RegAccess |
reserved | ||||||
|
Bit |
description |
|---|---|
|
RegAccess |
0bin: Register Communication switched off (Process data mode) |
Status Byte
The Status byte is only visible if the Fieldbus Box is operated in complete mode. The byte is located in the input image, and can only be read.
|
Bit |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
|
Name |
RegAccess |
Error |
- |
- |
NoColdJunction |
internal Error |
Over-Range |
Under-Range |
|
Name |
description |
|---|---|
|
RegAccess |
0bin: Acknowledgement for process data mode |
|
Error |
general error bit |
|
NoColdJunction |
cold junction in the plug is lost: An error is reported if the cold junction is not in the range between -50 and +100°C. |
|
internal Error |
analog part of the Fieldbus Box is faulty |
|
Over-Range |
broken wire |
|
Under-Range |
value under minimum value of the chosen thermocouple (Bit R32.12 to Bit R32.12 of the Feature Register) |
Register Communication
Control Byte
The Control byte is only visible if the Fieldbus Box is operated in complete mode. It is located in the output image, and can be read or written.
|
Bit |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
|
Name |
RegAccess |
R/W |
Register number | |||||
|
Name |
description |
|---|---|
|
RegAccess |
1bin: Register Communication switched on |
|
R/W |
0bin: Read |
|
Register number |
Number of the register that is to be read or written |
Status Byte
The Status byte is only visible if the Fieldbus Box is operated in complete mode. It is located in the input image, and can only be read.
|
Bit |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
|
Name |
RegAccess |
R/W |
Register number | |||||
|
Name |
description |
|---|---|
|
RegAccess |
1bin: Acknowledgement for register access |
|
R/W |
0bin: Read |
|
Register number |
Number of the register that has been read or written |