Wieland samos PRO COMPACT - Abbreviations and Definitions

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Wieland Electric GmbH | BA000970 | 11/2016 (Rev. F)
11
Abbreviations and Definitions
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Term
Explanation
{ } An element array or an element structure
0b
The following are specified in binary format
0x The following are specified in hexadecimal format
Procedure error A procedure error occurs if, in redundant input circuits, the two
input signals are not equal. Monitoring of inequality is frequently
carried out within a tolerated time window.
ACD
Address Collision Detection
ANSI
American National Standards Institute, specified character coding
AOI
Add On Instruction
AOP
Add On Profile
API
Actual Packet Interval
AR Application Relation, unique communication relationship in PROFI-
NET IO between the PLC and the device
Attribute
Characteristic or property of an object
Bit
Data unit with a value of 0 or 1
BOOL Data type specified for CIP devices; stands for a value of 1 byte, in
which each of the 8 bits is viewed individually
Byte, BYTE Data unit, representing a sequence of 8 bits; without a plus/minus
sign, if not specified
CIP
Common Industrial Protocol
Controller module Controller from the samosPRO COMPACT product family
CRC
Cyclic Redundancy Check, a type or the result of a hash function for
revealing errors in the area of data storage or transmission
Data block A data block contains 2-
12 bytes of the relevant data set (depending
on the gateway used).
Data set Describes a quantity of associated data, e.g. logic values or system
state data. A data set can consist of several data blocks.
I/O
Input/output
EPATH
Encoded Path, especially for CIP applications
EtherNet/IP Industrially-used Ethernet network, combines standard Ethernet
technologies with CIP
Gateway Connection module for industrially-used networks, such as Ether-
Net/IP, PROFIBUS DB, CANopen, Modbus TCP, etc.
ID
An identifier or an identity
Instance The physical representation of an object within a class. It stands for
one of several objects within the same object class. (Reference: CIP
specification, version 3.18)
IP Internet protocol
Class A series of objects representing a similar system component. A
class is a generalization of the object, a template for defining variab-
les and methods. All the objects within a class are identical with
regard to function and behavior. However, they may have differing
attribute values. (Reference: CIP specification, version 3.18)
LSB Low Significant Byte
MPI Measured Packet Interval; shows the API at the time of measure-
ment
1.5