5-5SectionUsing Protocol Macros
78
Parameter Meaning
Command One of the following: SEND, RECEIVE, or
SEND&RECEIVE
Messages
Send message The message sent for SEND.
Receive
message
The expected message for RECEIVE.
Send message
and receive
message
The message sent and the expected
message for SEND&RECEIVE.
Reception
matrix
A group of expected messages that can
be used to switch to different next
processes when RECEIVE or
SEND&RECEIVE is used.
Repeat counter The number of times to repeat the step (0 to 255). The
repeat counter can be used to change send/receive
messages.
Retry count Used for SEND&RECEIVE to retry the command for errors
(0 to 9).
Send wait time Used for SEND or SEND&RECEIVE to create a wait time
before sending data.
Response write
enable (for operand
specification)
Specification of whether or not to write the received data to
memory.
Next process Specifies the next step or to end the sequence when the
current step is completed normally.
Error processing Specifies the next step or to end the sequence when the
current step ends in an error.
Standard System Protocol Example
Process Value Read Sequence for E5
jK Controller Read Protocol
Level Item Setting
Sequence
Link words ---
Transmission control
parameters
Modem control
Response notification
method
Scan
Reception wait time Tr 3 s
Reception finished wait
time Tfr
3 s
Send finished wait time
Tfs
3 s
Steps
Step number 00
Repeat counter Reset/001
Command SEND&RECEIVE
Retry count 3
Send wait time ---
Send message SD (00) _1
Receive message RV (00) _1
Response write enable Write
Next process End
Error process Abort
Step Parameters