Siemens SINUMERIK 880 SW 6 Planning Manual page 445

05.91
MPC
MPF
Multiport RAM
NC
NC channel
NC part program
Normal mode
OB
Operator panel I/Os
Option
Overall reset
Part program
PB
PCB
Peripheral byte
Peripheral word
PII
© Siemens AG 1991 All Rights Reserved
SINUMERIK 880 (PJ)
Abbreviation for multipoint controller, interface to a serial
(MPC) bus. Used in the SINUMERIK 880, for instance, to
connect the operator panel to the COM CPU and for
linking EUs to the central controller.
Abbreviation for main program file, designates a memory
area in the NC for part programs
A type of memory module with the link RAM
Numerical control. Often used in this publication to refer
to the NC area (or the NC CPU) of the SINUMERIK 880
(see Section 1, General Overview).
The NC area of the SINUMERIK 880 comprises NC
channels. The principal components of each NC channel
are a block preparation function for part programs,
an interpolator and an interface to the PLC
Part program
Mode of the PLC CPU in which the PLC program can
be interrupted only at block limits. For this reason
hardware interrupts, for example, cannot be processed in
the normal mode (see "PLC 135 WB Planning Guide",
own documentation)
Abbreviation for organization block
Machine signals connected to the operator panel by
I/O submodules (see Section 1)
Supplement to the standard functionality of the
SINUMERIK 880
Reset of all editable memory areas, combined with the
entry of fixed initial values where applicable (also "general
reset")
Program for the numerical control, for machining the
workpiece with the controlled machine
Abbreviation for program block
Module for installation in the central controller or in an
expansion unit
A byte of the I/O address area. The I/O address area
accommodates the input and output signals; also see
PII, PIQ
A word (two consecutive bytes, starting with an even
address) in the I/O area; see peripheral byte
Abbreviation for process input image (see Section 1)
6ZB5 410-0HE02
21 Terms and Abbreviations
21–7