Tool: Compensation and Monitoring (W1)
25.4 Tool monitoring
Turning, Milling, Nibbling
426 Function Manual, 11/2012, 6FC5397-1CP10-5BA0
Monitoring counter
Monitoring counters exist for each monitoring type. The monitoring counters count from a set
value >0 down to zero. When a counter has decremented to a value of ≤0, the limit value is
reached. An appropriate alarm message is issued and an interface signal output.
Another interface signal is output first if a tool cutting edge has reached its set prewarning
limit.
System variable for type and condition of the monitoring
● $TC_TP8[t] - Status of the tool with the number t:
Bit 0 =1/0: Tool is active/ spare tool
Bit 1 =1/0: Tool is enabled/ not enabled
Bit 2 =1/0: Tool is disabled/ not disabled
Bit 3: Reserved
Bit 4 =1/0: Prewarning limit reached/ not reached
● $TC_TP9[t] - Type of the monitoring function for the tool with the number t:
= 0: No monitoring
= 1: Service-life-monitored tool
= 2: Quantity-monitored tool
These system variables can be read / written in the NC program and can be accessed
through the control (HMI). As the "Tool management" function package is not available for
SINUMERIK 802D these system parameters must be managed by the operator/programmer.
Reference:
/BP_/ Operation and Programming
System variables for tool monitoring data
Table 25- 1 Tool monitoring data
Identifier Description Data type Default value
$TC_MOP1[t,d] Warning limit for tool life in minutes REAL 0.0
$TC_MOP2[t,d] Residual tool life in minutes REAL 0.0
$TC_MOP3[t,d] Warning limit for count INT 0
$TC_MOP4[t,d] Residual unit quantity INT 0
... ...
$TC_MOP11[t,d] Tool life setpoint REAL 0.0
$TC_MOP13[t,d] Unit quantity setpoint REAL 0.0
t for tool number T, d for D number
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