The number of switches that can be allocated to one function key is unlimited.
The number of switches that can be allocated to all local function keys is the maximum number that can be placed on one screen. The maximum number of parts that can be placed on one screen is determined by the total number of parts placed on the screen and on the function keys.
(Number of parts on B1) + (Number of parts on B1's local function keys) <= (Maximum number of parts on one screen)
The number of switches that can be allocated to all function keys is limited even in the maximum device number that can be placed on one screen. Count how many devices you have on the base screen and on the local function key. If it exceeds the maximum number of devices, the switches after that will not work.
The maximum number of parts placed on a global function key, and devices are not dependent on the maximum number of screens. The number limit exists in the global function key itself. Count the number in the set order, and if it exceeds the following restricted number, any part after that will not work.
Number of Parts: up to 384
Number of lead devices: up to 1152 devices
The function key cannot be registered in a Package.
The function key is also not accepted while the operation is prohibited in the operation lock feature.