Terms And Definitions - Omron Sysmac F430-F Series Connection Manual

2. Terms and Definitions

Term
Protocol Macro
Protocol
Sequence
Step
Send Message
Receive Message
Receive Matrix
Case
This function enables data Send / Receive with general-purpose external
devices by storing the data Send / Receive procedure (Protocol) used with
the general-purpose external devices in the Serial Communication Board
or Unit and executing the PMCR instruction in the CPU unit.
The unit that comprises an independent communication processing for a
specific general-purpose external device as a data Send / Receive
procedure is called a "Protocol". A "Protocol" consists of multiple
"Sequences".
A unit of independent communication processing that can be activated
from the PMCR instruction on the ladder program. The activated sequence
sequentially executes the steps included in it.
A unit of data to execute any Message or other Send / Receive process,
Receive Buffer Clear, and Step Waiting process. A maximum of 15 Steps
can be set for 1 Sequence.
A communication frame (Command) sent to a general-purpose external
device. It is called from a Step in the sequence and sent to a
general-purpose external device.
A communication Frame (Response) sent from a general-purpose external
device. It is called from a Step in the sequence and compared with the data
received from the general-purpose external device.
The Receive Matrix is used when it is not possible to identify only one
communication frame (response) sent from a general-purpose external
device. It is possible to register multiple communication frames in the
Receive Matrix.
A unit to register multiple communication frames (responses) in the receive
matrix. 1 communication frame is registered as 1 case. It is possible to
register a maximum of 15 case types in the Receive Matrix.
Description / Definition
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