Specifications

PHOENIX CONTACT 19
PHOENIX CONTACT 23
04.04.2008 12:53:19 Uhr04.04.2008 12:53:19 Uhr
ata
Interbus Safety convinces with its
outstanding features:
Convenient integration
Interbus Safety can be retrofitted easily in existing automation
solutions. Here, the standard control system is replaced by a
Profinet Proxy and Interbus master with an integrated safe control
system. Depending on the requirement, the user can now operate
safe and standard devices on one bus line or separate them using a two-
cable solution.
Easy operation
Besides retaining the usual method of operation of the standard
Interbus system, the one-bit principle also contributes to easy
handling of Interbus Safety. The safe module electronics generate
a safe bit from the safe peripheral signals. The programmer
processes the safe bit in the safe programming software SafetyProg by
linking it to modules.
Precise diagnostics
The diagnostics functions of the standard Interbus system have
been transferred to Interbus Safety so that the user on site
knows which safety function has been triggered and why. While
the LEDs on the components display I/O or bus errors,
comprehensive diagnostics information is automatically shown in plain
text on the controller and via the diagnostics software Diag+.
Short response times
Since the Interbus system permits very short cycle times of 2 to
5 ms due to the transfer procedure, the process can be switched
off safely within a very short time. The response times can be
calculated in detail, since the Interbus protocol is deterministic in
structure. Usually, there are no fluctuations in the cycle time.
Guaranteed switch-off time
Interbus Safety is the only safe bus system that is currently able to
monitor the response time over the entire safety chain channel by
channel and to switch off the corresponding output in the case of
limit overshoot. The switch-off time to be monitored is simply
parameterized and guaranteed over the entire safety chain.
Maximum safety
Internal time switches, failsafe comparators, pulsed outputs, cycle-
sensitive inputs and the safety protocol ensure that the probability
of errors is minimal and lies within the limits defined for
SIL 3/IEC 61508 and cat. 4/EN 954-1. Current standards such as
EN ISO 13849-1 and EN IEC 62061 are also taken into account.
If the emergency stop button is pressed, the safe control system
switches off the output using the safe output module. The safe
control system accepts the setting of the output through the
standard control system only when all input conditions have been
fulfilled again.
Emergency
stop
Standard
application
Safe
application
Actuator