# Logical key number (P-MANU-00009)

P-MANU-00009 | Logical key number
Description | This parameter defines the logical key number of an inching key pair. The logical key number is unique throughout the entire system. The logical key number is used to assign an activation or deactivation job to the physical inching key pair. The logical key number is also used to assign a physical key pair to a logical axis.
Parameter | tasten_data[i].log_tasten_nr
Data type | UNS16
Data range | 1 ... MAX(UNS16)
Dimension | ----
Default value | 0
Remarks | A logical key number may not be assigned several times. If this is the case, the plausibility check of the manual mode data generates an error message. The logical key number ‘0’ is not permitted. Activating and deactivating manual modes is described in [PROG].

Parameterisation example: Two physical inching key pairs are configured. These are the logical key numbers ‘1’ and ‘2’.

tasten_data[0].log_tasten_nr 1 #logical key number Key pair 1

…….

tasten_data[1].log_tasten_nr 2 #logical key number Key pair 2

…….