Start-Up
SINUMERIK 802C base line
4-13
Start-Up
z
Feed disable: The PLC provides the Feed Disable signal to the CNC in
the user interface after the user program has been executed.
z
Read-in disable: The CNC provides the Read-in Disable signal to the
CNC in the user interface after the user program has been executed.
z
NC Start inhibited: The PLC provides the NC Start Inhibited signal to the
CNC after the user program has been executed.
z
SHOWALARM: This alarm has no alarm response (bit0 - bit5 =0).
Priority of cancel conditions
The cancel conditions have the following priority:
z
POWER ON CLEAR - system alarms (highest priority)
z
CANCEL CLEAR - system alarms
z
SELF-CLEARING - system alarms
z
POWER-ON CLEAR - user alarms
z
CANCEL CLEAR - user alarms
z
SELF-CLEARING - user alarm (lowest priority)
System alarms
see Diagnostics Guide
User alarms
The user interface “1600xxxx” provides the user with two sub-ranges for setting
a user alarm.
z
Sub-range 0: 4 x 8 bits to set user alarms (0 -> 1 edge)
Byte 0 : Bit0 => 1st user alarm ‘’ 700000 ‘’
Byte 3 : Bit7 => 32nd user alarm ‘’ 700031 ’’
z
Sub-range 1: User alarm variables
The respective bit (sub-range 0) with a 0/1 edge change will activate a new
user alarm.
Sub-range 1 is intended for additional user information.
Sub-range 2 can be used to analyze the active alarm responses.
Sub-range 1 can only be read or written as a double word. Sub-range 2 can
only be read.
You can delete self-clearing alarms by resetting the respective bit in the
variable range ‘’1600xxxx’’ in sub-range 0 (1 -> 0 edge).
The remaining user alarms are cleared by the PLC after detecting the
respective cancel condition. If the alarm is still present, the alarm occurs again.
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