Festo CMTT-AS S1 Series, Description, Page: 32 / 46

9 Technical data
9.1 Technical data, safety equipment
General safety reference data
Request rate in accord-
ance with EN 61508 High request rate
Reaction time when the
safety sub-function is
requested [ms]
<
10 (applies for STO and SBC)
Error reaction time
(how long it takes for
the diagnostic output
status to become cor-
rect once the safety
sub-function has been
requested) [ms]
<
20 (applies for STA and SBA)
Tab. 14 Safety reference data and safety specifications
Safety reference data for the safety sub-function STO
Wiring Without high test
pulses, without or
with STA evaluation With high test
pulses and with STA
evaluation
1)
With high test
pulses and without
STA evaluation
Safety sub-function in
accordance with
EN 61800-5-2 Safe torque off (STO)
Safety integrity level in
accordance with
EN 61508 SIL 3 SIL 3 SIL 2
SIL claim limit for a
subsystem in accord-
ance with EN 62061 SIL CL 3 SIL CL 3 SIL CL 2
Category in accordance
with EN ISO 13849-1 Cat. 4 Cat. 4 Cat. 3
Performance level in
accordance with
EN ISO 13849-1 PL e PL e PL d
Technical data
32 Festo — CMMT-AS-...-S1 — 2018-10a