Process data mode
Control byte 1 in process data mode
Control byte 1 (CB1) is located in the output image, and is transmitted from the controller to the terminal. In process data mode it has no function.
Bit | CB1.7 | CB1.6 | CB1.5 | CB1.4 | CB1.3 | CB1.2 | CB1.1 | CB1.0 |
Name | RegAccess | - | - | - | - | - | - | - |
Key
Bit | Name | Description | |
|---|---|---|---|
CB1.7 | RegAccess | 0bin | Register communication off (process data mode) |
CB1.6 to CB1.0 | - | 0bin | reserved |
Status byte 1 in process data mode
The status byte 1 (SB1) is located in the input image and is transmitted from terminal to the controller.
Bit | SB1.7 | SB1.6 | SB1.5 | SB1.4 | SB1.3 | SB1.2 | SB1.1 | SB1.0 |
Name | RegAccess | Error | LimitValue 2 State | LimitValue 1 State | Overrange | Under range | ||
Key
Bit | Name | Description | |
|---|---|---|---|
SB1.7 | RegAccess | 0bin | Acknowledgment for process data mode |
SB1.6 | Error | 1bin | General error bit |
SB1.5 to SB1.4 | LimitValue 2 | 00bin | Limit value 2 not enabled |
01bin | Process data less than limit value 2 | ||
10bin | Process data greater than limit value 2 | ||
11bin | Process data equal limit value 2 | ||
SB1.3 to SB1.2 | LimitValue 1 | 00bin | Limit value 1 not enabled |
01bin | Process data less than limit value 1 | ||
10bin | Process data greater than limit value 1 | ||
11bin | Process data equal limit value 1 | ||
SB1.1 | Overrange | 1bin | Permissible measuring range exceeded |
SB1.0 | Under range | 1bin | Lower measuring range limit violated |