Siemens SINUMERIK 840D sl Function Manual page 886

Z2: NC/PLC interface signals
19.2 Distributed systems (B3)
STATUS
Name
OFFL_REQ_PLC
OFFL_CONF_PLC
OFFL_REQ_OP
OFFL_CONF_OP
ONL_PERM
S_ACT
OFFL_REQ_FOC
OFFL_CONF_FOC
ONL_REQ_FOC
ONL_PERM_FOC
Z_INFO
Name
DISC_FOC
Set
CONNECT
886
Value Interface DB19
1 Online interfaces
1. : DBB124
2. : DBB134
2 Online interfaces
1. : DBB124
2. : DBB134
3 Online interfaces
1. : DBB124
2. : DBB134
4 Online interfaces
1. : DBB124
2. : DBB134
5 Online request inter‐
face
DBB108
6 Online interfaces
1. : DBB124
2. : DBB134
7 Online interfaces
1. : DBB124
2. : DBB134
8 Online interfaces
1. : DBB124
2. : DBB134
9 Online interfaces
1. : DBB124
2. : DBB134
10 Online interfaces
1. : DBB124
2. : DBB134
Value Interface DB19
9 DBB125
DBB135
10 DBB109 Bit 0-3
DBB125
DBB135
11 DBB125
DBB135
Meaning
PLC to control unit: PLC wants to displace control unit by offline
request.
Control unit to PLC: Acknowledgement of OFFL_REQ_PLC
The meaning of the signal is dependent on Z_INFO DBB125
or DBB135
Control unit to PLC: Control unit would like to go offline from
this NCU and outputs an offline request
PLC to control unit: Acknowledgement of OFFL_REQ_OP
The meaning of the signal is dependent on Z_INFO DBB125
or DBB135
PLC to control unit: PLC notifies control unit as to whether it
can go online or not.
The meaning of the signal is dependent on Z_INFO: DBB109
Control unit to PLC: Control unit goes online or changes oper‐
ating focus.
The meaning of the signal is dependent on Z_INFO DBB125
or DBB135
Control unit to PLC: Control unit would like to take operating
focus away from this NCU
PLC to control unit: Acknowledgement of OFFL_REQ_FOC
The meaning of the signal is dependent on Z_INFO DBB125
or DBB135
Control unit to PLC: Control unit would like to set operating
focus to this NCU
PLC to control unit: Acknowledgement of ONL_REQ_FOC
The meaning of the signal is dependent on Z_INFO DBB125
or DBB135
Meaning
Control unit switches operating focus to another NCU.
Positive acknowledgement
Control unit has gone online on this NCU.
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions