Siemens Simatic S7-400 - Manual (Page 604)

List of Abbreviations
E-2
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
FC Function
FEPROM Flash erasable programmable read only memory
FM Function module
FOC Fiber-optic cable
FRCE Force
GD Global data communication
I
C
Constant-current lead
ID Input delay
IFM1F; IFM2F LED error at interface module 1/2
IM Interface module
INTF Error LED “internal fault”
IP Intelligent periphery
L+ Terminal for 24 VDC supply voltage
LAD Ladder logic diagram
LWH Hold last valid value
M Ground terminal
M+ Measuring lead (positive)
M– Measuring lead (negative)
M
ANA
Reference potential of the analog measuring circuit
MPI Multipoint interface
MRES Master reset
MSM Mass storage module
MSTR Master
OB Organization block
OP Operator panel
OS Operator system
PIQ Process-image output table
PII Process-image input table
PLC Programmable logic controller
PG Programming device
PS Power supply
Q
I
Analog output current
Q
V
Analog output voltage
RAM Random access memory
REDF Redundancy fault
R
L
Load impedance