Siemens sinumerik 840D sl Function Manual page 410

Data lists
5.4 Signals
Extended stop and retract (ESR)
Identifier
$A_DBB
$A_IN
$A_OUT
$AA_ESR_ENABLE[axis]
$AA_ESR_STAT[axis]
$AA_TYP[axis]
$AC_ALARM_STAT
$AC_ESR_TRIGGER
$AC_STAT
$AN_ESR_TRIGGER
5.4 Signals
5.4.1 Signals to axis/spindle
DB number Byte.bit
31, ... 0.0-0.7
31, ... 1.3
31, ... 2.1
31, ... 4.0-4.2
31, ... 4.3
31, ... 26.4
31, ... 31.4
31, ... 31.5
31, ... 31.6
190
Description
Read/write data byte (8 bits) from/to PLC
Digital input NC
Digital output NC
1 = (axial) enable of reaction(s) of "Extended stop and retract"
(axial) status feedback signals from "Extended stop and retract"
Axis type
!=0: Alarms are present, the coded associated alarm reactions can be used as a
source for "Extended stop and retract".
channel-specific control signal "Start stop/retract" NC-controlled
Channel status: invalid, in reset, interrupted and active
(Global) control signal "Start Stop/retract" drive independently
Description
Feed offset
Axis disable
Controller enable
Activate handwheel
Feed stop
Enable following axis overlay
Synchronize following spindle
Disable synchronization
Track synchronism
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0