Pilz PSENvip RL D P Set Operating Manual page 98

System Connections
Tool class 3
} The user program confirms tool class 3. The PSENvip switches to a RUN state.
}
The PSENvip switches to a HOLD state if
– No communication is established (within 30 s on switching on, otherwise within 200
– The tool class sent by the PSENvip and reflected by the user program do not match.
– Errors occur in the communication protocol.
– Overall communication takes longer than 600 ms.
– - A single communication phase takes longer than 200 ms (see Chapter 4.4, section
}
The switchover point must be raised in comparison with the switchover point for tool class
3. The switchover to lower speed must take place even earlier.
}
The user program must convey a higher switchover point to the CNC controller and then
monitor this.
}
If the press is at top dead centre (TDC), each press stroke must be acknowledged before
it is initiated. Only after this acknowledgement are the OSSDs switched on, enabling
rapid traverse for the press.
Program example for communication between the PSENvip and a safety system from the
automation system PSS 4000:
FUNCTION_BLOCK
PSENvipCom
VAR_INPUT
bStartToolChangeE0
bValidToolChangeE1
bToolTypeE2
bToolTypeE3
uiToolTypeCNC
END_VAR
VAR_OUTPUT
bAcknowledgeTool-
ChangeA0
bAcknowledgeTool-
TypeA1
bAcknowledgeTool-
TypeA2
END_VAR
VAR
RisingFlagE0
RisingFlagE1
bComEnd
Operating Manual PSENvip RL D P Set
1001641-EN-09
ms).
entitled "Communication sequence").
: SAFEBOOL; // Start signal for the communication from
: SAFEBOOL; // Tool value from PSENvip is valid
: SAFEBOOL; // Tool value Bit 0 from PSENvip
: SAFEBOOL; // Tool value Bit 1 from PSENvip
: SAFEUINT;
: SAFEBOOL; // Acknowledge signal for the communica-
: SAFEBOOL; // Tool value Bit 0 from PSS4000
: SAFEBOOL; // Tool value Bit 1 from PSS4000
: R_TRIG;
: R_TRIG;
: BOOL;
PSENvip
// Tool value from the CNC
tion from PSS4000
// FUNCTION block rising edge for Signal
E0
// FUNCTION block rising edge for Signal
E1
// End of communication
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