HIMA HIMax X-COM 01 E - Appendix; Glossary

Appendix X‑COM 01 E
Page 42 of 46 HI 801 566 E Rev. 13.00.00
Appendix
Glossary
Term
Description
AI
Analog input
AO
Analog output
ARP
Address resolution protocol, network protocol for assigning the network addresses to
hardware addresses
COM
Communication module
CRC
Cyclic redundancy check
DI
Digital input
DO
Digital output
EMC
Electromagnetic compatibility
EN
European standard
ESD
Electrostatic discharge
FB
Fieldbus
FBD
Function block diagrams
HW
Hardware
ICMP
Internet control message protocol, network protocol for status or error messages
IEC
International electrotechnical commission
Interference-free
Inputs are designed for interference-free operation and can be used in circuits with
safety functions
MAC
Media access control address, hardware address of one network connection
PADT
Programming and debugging tool (in accordance with IEC 61131-3), PC with SILworX
PELV
Protective extra low voltage
PES
Programmable electronic system
R
Read, the variable is read out
R/W
Read/Write, column title for system variable type
Rack ID
Base plate identification (number)
rP
Peak value of a total AC component
SB
System bus (module)
SC/OC
Short-circuit/open-circuit
SELV
Safety extra low voltage
SFF
Safe failure fraction, portion of faults that can be safely controlled
SIL
Safety integrity level (in accordance with IEC 61508)
SILworX
Programming tool
SNTP
Simple network time protocol (RFC 1769)
SRS
System.Rack.Slot, addressing of a module
SSL
Secure sockets layer, see TLS
SW
Software
TLS
Transport layer security, hybrid cryptographic protocol
TMO
Timeout
W
Write, the variable receives a value, e.g., from the user program
WD
Watchdog, device for monitoring the system's correct operation Signal for fault-free
process
WDT
Watchdog time