For engineers or maintenance personnel reviewing this feature, here is how to handle Exclusive Keep Relays effectively:
From a maintenance perspective, Keep Relays offer an exclusive diagnostic benefit. Because they directly reflect the state of machine options and custom logic, a technician can quickly audit the machine’s configuration. For example, if a tool changer stalls, checking the relevant Keep Relay (e.g., "Arm cycle time enable") can reveal whether a custom timer has been disabled.
: Bypassing or enforcing safety interlocks, such as door locks or spindle start conditions.
While Keep Relays hold data without power, they are often excluded from standard SRAM backups unless specifically configured. When cloning a machine, failure to clear or set the correct Keep Relays can lead to configuration mismatches.
: Addresses are typically represented in an 8-bit format (e.g., K0.0 to K0.7). Some ranges are reserved for system functions (often K900+), while others are for machine-specific OEM functions.