Channel Setting - HEIDENHAIN iTNC 530 HSCI Technical Manual

Channel setting

July 2013
The channel designations in the dialog of the control are numbered
consecutively from 0 to 15 and do not correspond to the ZigBee channel
numbers. Channel 0 at 2.405 GHz in the dialog on the control corresponds to
ZigBee channel 11; channel 1 at 2.410 GHz in the dialog on the control
corresponds to ZigBee channel 12, and so on. With the next software
versions, the ZigBee channel numbers will also be displayed in the dialog on
the control. The diagram below shows the relationship between the channel
designations in the dialog on the control and the ZigBee channel numbers.
WiFi (WLAN) networks have channel frequencies and also channel
designations, which, however, differ from those of the wireless handwheel
system (ZigBee). For example, the WLAN channel 13 is at 2.472 GHz, and the
wireless handwheel channel 13 is at 2.415 GHz. The diagram below shows
the relationship between the channel designations in the dialog on the control,
the ZigBee channel numbers and the WIFI (WLAN) channels. In addition, a
detected WLAN channel has a channel width of 20 MHz, which must be taken
into account in the coexistence planning. The four ZigBee channels next to a
WLAN channel must therefore not be used in order to ensure that 20 MHz of
channel width remain available.
Example: WLAN on channel 6
As a result, the ZigBee channels 16, 17, 18 and 19 must not be used. A
wireless handwheel should be set only to ZigBee channel 15 or 20, which
corresponds to channel 4 or 9 in the dialog on the control.
Formula for the next vacant wireless handwheel channel (TNC channel)
depending on a WLAN channel:
TNC channel+ = WLAN channel + 3
TNC channel– = WLAN channel – 2
Example:
TNC channel+ = 6 + 3 = 9
TNC channel– = 6 – 2 = 4
3.41 Handwheel input
409