List of abbreviations
A.1 List of abbreviations
SIMOCODE pro
372 System Manual, 05/2019, A5E40507475002A/RS-AD/004
1st generation SIMOCODE pro V PB basic unit (for UM)
BU2+ 2nd generation SIMOCODE pro V PB basic unit (for UM+)
1st generation SIMOCODE pro V Modbus RTU basic unit (for UM)
BU2_MR+ 2nd generation SIMOCODE pro V Modbus RTU basic unit (for UM+)
SIMOCODE pro V PN basic unit
SIMOCODE pro V PN GP basic unit
Hardware failure tolerance
Identification and Maintenance
Isolation-Terre (isolation ground)
Negative temperature coefficient (resistance dependent on temperature)
Object Manager for PROFIBUS DP slaves for integration into STEP 7
OSSD Part of the electro-sensitive protective equipment (ESPE) that is connected to the machine
control system and that switches to the OFF state if the sensor part is tripped during
operation for the intended purpose.
PCS Process Control System
Protective Extra Low Voltage
PFD Probability of failure of demand: Probability of dangerous failure of a safety function on
PFDavg Average probability of failure of demand: Average probability of dangerous failure of a
safety function on demand
PFHD Probability of dangerous failure per hour: Average probability of hazardous failure occurring
Positive temperature coefficient (resistance dependent on temperature)