Control And Status Bytes With Diagnosis - Beckhoff KL2751 Documentation

Access from the user program
6.2

Control and status bytes with diagnosis

This description applies to
• KL2751-0000 / KS2751-0000 with firmware versions 3B or higher
• KL2751-0011 / KS2751-0011 with firmware versions 3B or higher
• KL2761-0000 / KS2761-0000
• KL2761-0011 / KS2761-0011
Process data mode
Control byte (for process data mode)
The control byte (CB) is located in the output image [} 37], and is transmitted from the controller to the
terminal.
Bit CB1.7 CB1.6
Name RegAccess -
Legend
Bit Name
CB17 RegAccess
CB1.6 to CB1.1 -
CB1.0 ManualAutoDetect 1
Status byte (for process data mode)
The status byte (SB) is located in the input image [} 37], and is transmitted from terminal to the controller.
Bit SB1.7 SB1.6
Name RegAccess Error
Legend
Bit Name
SB1.7 RegAccess
SB1.6 Error
SB1.5 Temperature warning
SB1.4 Overload
SB1.3 Operation mode
to
SB1.1
SB1.0 Synchronous
38
CB1.5 CB1.4
- -
Description
0 Register communication off (process data mode)
bin
0 reserved
bin
manually start automatic load type detection (rising edge)
bin
SB1.5 SB1.4
Temperature Overload
warning
Description
0 Acknowledgement for process data mode
bin
1 A load-side short circuit was detected
bin
1 Overtemperature detected (> 80 °C): the process data are limited to
bin
20 % (the limit is reset automatically when the temperature falls below
60 °C)
1 Overload detected (e.g. when switching higher loads on)
bin
manually set or automatically detected operation mode
0 automatic load type detection active
dec
1 Trailing edge phase control
dec
2 Leading edge phase control
dec
3 Rectifier mode (positive half-wave with leading edge phase control)
dec
4 Rectifier mode (negative half-wave with leading edge phase control)
dec
0 Terminal is not synchronized with the mains or a short circuit was
bin
detected on the load side
1 Terminal has synchronized itself with the mains*
bin
Version: 3.1.0
CB1.3 CB1.2 CB1.1
- - -
SB1.3 SB1.2 SB1.1
Operation mode
KL2751/KS2751, KL2761/KS2761
CB1.0
ManualAutoDete
ct
SB1.0
Synchronous