Bosch Rexroth ctrlX SAFETY SAFEX-C.12 - Page 82

82/83 ctrlX SAFETY | List of abbreviations
R911405651, Bosch Rexroth AG, DOK-XSAFE*-SAFEX-C.1XC-IT03-EN-P, Edition 03
LVL Limited Variability Languages
A limited programming language
scope; limited to the possibility to
parameterize and combine
predefined library functions in
order to implement the safety
requirements in the program
MTTF
d
mean time to failure
(dangerous)
The average time until a
dangerous failure occurs
O.(O_A/B) Output .
PAA Process image of the outputs
PAE Process image of the inputs
PE
Programmable electronic
system
PELV Protective Extra Low Voltage .
PES
Programmable electronic
controller
PLC Programmable logic controller .
POR Power On Reset A reset procedure
SDC Safe Drive Unit module
SDDC
Safe Device to Device
Communication
.
SDP Safe Drive Profile
A data profile for safe sensor
data
SELV Safe Extra Low Voltage .
SMMC
Safe Master to Master
Communication
.
SRP/CS
Safety-related parts of control
systems
.
SSI Synchronous Serial Interface .
SW Software
T. Pulse output Pulsed signal
TCP/IP Standard Ethernet
UDP User data protocol for SMMC User data protocol for safe
Master - Master communication
NC Not connected
Not used, no function is provided
for the external wiring of this pin,
it is recommended not to
connect this pin to any circuits
VDE
Association of Electrical
Engineering