Siemens SIMATIC ET 200SP Manual page 174

List of abbreviations
D.1 List of abbreviations
Abbreviation Meaning
IEEE Institute of Electrical and Electronics Engineers
IO Input Output
IP Ingress Protection (enclosure class)
ISO International Organization for Standardization
LAS List of Activated Slaves
LDS List of Detected Slaves
LED Light Emitting Diode
LPF List of peripheral faults (list of peripheral faults signaled by the AS-i slaves)
LPS List of configured AS-i slaves (list of "projected" slaves)
MPO Master Power On
NEC National Electrical Code
NFPA National Fire Protection Association
OB Organization block
PIQ Process Image Output
PII Process image input
PCD Permanent Configuration Data
PELV Protective extra low voltage
PF Peripheral fault
PI Parameter Image
PP Permanent Parameter
RDREC Read record
SELV Safety Extra Low Voltage
SIL Safety Integrity Level
GF, CF System fault
SFB System function block
PLC Programmable logic controller
SNMP Simple Network Management Protocol
TCP/IP Transmission Control Protocol / Internet Protocol
TIA Totally Integrated Automation
USB Universal Serial Bus
WRREC Write record
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AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004