Connection via the SIMATIC HMI connection box advanced allows quick connection and
disconnection during machine operation without tripping an emergency stop.
NOTICE
Damage through regenerative feedback
Regenerative feedback of voltage to ground by a connected or installed component can
damage the device.
Connected or built-in I/Os, for example a USB drive, are not permitted to supply any voltage to
the device. Regenerative feedback is generally not permitted.
4.2 Pin assignment of the interfaces
I Signal input
O Signal output
B Bi-directional signal
V Supply voltage
K Contact
VI Voltage input
VO Voltage output
See also
Pin assignment of the interfaces (Page 26)
4.2.1 Power supply
Connector designation: X 51
Connector type: 12-pole connector plug with coding and locking
Pin Signal name Signal type Signal
type
1 nc
2 nc
3 ENABLE 2+ (Enabling button channel 2, digital) I
4 ENABLE 2- (Enabling button channel 2, digital) O
5 ENABLE 1+ Enabling button channel 1, digital I
6 ENABLE 1- Enabling button channel 1, digital O
7 STOP -13 EMERGENCY STOP circuit 2 K
8 STOP -14 EMERGENCY STOP circuit 2 K
Connecting
4.2 Pin assignment of the interfaces
Handheld Terminal HT 10
26 Equipment Manual, 09/2020, A5E47430965B AA