Terms And Definition - Omron Sysmac CJ Series Connection Manual

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Terms and Definition

Terms
Protocol macro
Protocol
Sequence
Step
Send message
Receive message
Matrix
Case
The protocol macro is a function that stores a procedure (protocol) to
send/receive data to/from general-purpose external devices in a Serial
Communications Board or Serial Communications Unit. Data can be
sent/received by executing the PMCR instruction on the CPU Unit.
A unit of independent communication processing with a specific
general-purpose device. A protocol includes data transfer/reception
procedure. A protocol consists of multiple sequences.
A unit of independent communication processing which can be started by
executing the PMCR instruction of the ladder program. The sequence that
is started will execute steps registered in its own sequence.
A unit to execute any one of the followings: Send message, Receive
message, Send message and receive message, Clear process for receive
buffer, or Step wait. Up to 15 steps can be set per sequence.
A communication frame (command) sent to an external general-purpose
device. A send message is read from the step in the sequence, and sent to
the external general-purpose device.
A communication frame (command) sent from an external general-purpose
device. A receive message is read from a step in a sequence and is
compared with data received from an external general-purpose device.
A matrix is used when an external general-purpose device sends multiple
types of communications frames (responses). Two or more communication
frames can be registered in one matrix.
A unit to register two or more communication frames (response) to the
matrix. One communication frame is registered as one case. Up to 15
types of cases can be registered per matrix.
Explanation and Definition
2. Terms and Definition
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