Pilz PNOZ mm0p 24VDC - Manual (Page 121)

Safe Ethernet connection
Operating Manual PNOZmulti communication interfaces
1001154-EN-13
121
The Modbus address at which the PNOZmulti makes the send/receive data available as
Server is not configurable in the PNOZmulti.
The PNOZmulti's send data (18 Register) can be found from start address 20000 (signifies
HoldingRegister 4x20000)
The PNOZmulti's receive data (18 Register) can be found from start address 21000 (signi-
fies HoldingRegister 4x21000)
These addresses must be configured accordingly in the PSS 4000.
Reaction time
The safety function's safe reaction time is composed of the reaction times of the control
systems and the monitoring time for a telegram's runtime.
Composition of the entire data path
The entire data path is composed of the data subpaths of a control system 1, the safe Eth-
ernet connection and the data subpaths of a control system 2.
Control system 1 Control system 2
[1] [3] [2]
Safe Ethernet connection
Data path 1: Control system 1 (transmitter)
Data path 1 describes the time between the signal changing at the input of control system 1
and the signal being present in the
Safe Ethernet connection output area of control sys-
tem 1.
If control system 1 (transmitting system) is an automation system PSS 4000, you can calcu-
late the reaction time of this data path as described in the online help for PAS4000.
If control system 1 (transmitting system) is a control system PNOZmulti, you can calculate
the reaction time as follows:
} Max. input delay (see Technical details in the operating instructions for the respective
input) + Max. cycle time of the device (see base unit's operating instructions)
Data path 2: Safe Ethernet connection (transmission)
Data path 2 describes the time between the signal being present in the
Safe Ethernet con-
nection output area of control system 1 and the signal being present in the Safe Ethernet
connection input area of control system 2.
The reaction time of data path 2 corresponds to the configured timeout time t
SecTimeout
of the
receiver system.
7.6