Siemens CP-8000 User Manual page 610

Glossary
M
Master Module
System element for processing of information according to different criterions (e.g. automation,
telecontrol, etc.) and for the administration of system functions (e.g. parameter, diagnosis, etc).
MDI
Media-Dependent Interface, adaptation to the cable type
MIB
Management Information Base; description file for SNMP
Modem
Data transmission device for connecting date end devices to the telephone network
Module
Hardware that is equipped in a mounting rack or on a carrier module; hardware of a system element
Module failure
Signals that the internal communication with a module is no more possible and is commonly replicated by
the supervising Master Module
Module number
System-technical identification of a system element within an automation unit, part of the IOA in a mes-
sage with system-technical addressing. The other parts of the IOA are the value number and the
subaddress.
Mounting rack
Device wherein that modules and instruments are installed
N
Network interface processor
The network interface processor serves for the connection of SICAM systems to the Ethernet LAN accord-
ing to IEEE 802.3
NIP
ž Network interface processor
Non-volatile
Function: also with/after voltage failure further available (no defect); information in a memory: not transi-
ent, undetachably
Normally open contact
Relay contact that is open when the relay is not activated; the contact closes when the relay is activated
O
OPM II
Central SICAM TOOLBOX II configuration tool (Object-oriented Processdata Manager)
Output active
If the output pulse is set and a command output (binary output) is already selected (relay activated), the
command is output to the process
P
PBA
Peripheral Board Address; used in systems with multiple I/O Master Modules (to be set via a hardware
switch on the respective I/O Master Module)
PCM
Puls Code Modulation
Peridocal control circuit check
The periodical control circuit check detects if the command circuits are ready to function correctly, without
activating the actuator.Control circuits are checked one by one, by activating all its relays, one by one,
thus closing the control circuit with high restistance.
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Unrestricted SICAM A8000 / CP-8000 • CP-8021 • CP-8022 Manual
DC8-037-2.02, Edition 10.2017