Chapter 1. Introduction
GFK-2737F December 2016 17
Glossary, continued
PROFINET Controller. This could be a separate module, e.g. IC695PNC001 for the RX3i family, or a functional
component of a product such as the PROFINET controller embedded in the ICRXICTL000, IC695CPE330, or
IC695CPE400. Refer to Section 1.4.1.
PROFINET Scanner. Refer to Section 1.4.2.
Record Data Object. Services used to read and write structured data stored in a PROFINET IO-Device.
Along with Send Clock determines the Update Period for a PROFINET cyclic data transfer between two
devices (see IOCR). The Update Period equals the Reduction Ratio multiplied by the Send Clock time. For
example, if the Reduction Ratio is 4 and the Send Clock is 1ms, the Update Period is 4ms.
For an RX3i PROFINET network, a Remote Node is any PROFINET IO-Device, such as a rack of I/O modules
with a Remote Scanner or a third party PROFINET IO-Device.
Real-Time Acyclic. A PROFINET-IO Mechanism used to exchange non-periodic data such as alarms.
Real-Time Cyclic. A PROFINET-IO Mechanism used to exchange input and output data.
Value between 1 and 128 inclusive in units of 31.25 µs (equivalent to a range of 31.25 µs to 4 ms) used to
calculate the Update Period for a PROFINET cyclic data transfer between two devices (see IOCR). The Send
Clock is the basis for all other scheduling parameters.
The time to delay a scheduled PROFINET cyclic data transfer frame.
Measured in nanoseconds from 0 to 3,999,999. Must be less than the Send Clock time.
Small Form-factor Pluggable. Pluggable, hot-swappable transceivers.
Simple Network Management Protocol. UDP-based network protocol that facilitates the exchange of
management information between network devices.
PROFINET-IO representation of the smallest configurable entity of a PROFINET Module.
Service Request Function Block. A control system service initiated by the RX3i CPU.
In Ethernet, the transmission of a network message to an individual host.
The time between PROFINET cyclic data transfers between an IO-Controller and an IO-Device.
A software utility used to download and install firmware upgrades.
To Next Page
Loading...
