Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 176

Overview of the Protocol Macro Functions
CPU Unit
Sequence
number
I/O memory
Creating a New Protocol
CPU Unit
Sequence
number
I/O memory
sequence to the Serial Communications Board or Unit, and execute the
PMCR(260) instruction.
Modifying and transferring
standard system protocols
Serial Communications Board or Unit
Modified standard
system protocol
Sequence No.
specification
Step 0
Step 1
Step 2
Shared memory
I/O refreshing
When connecting a general-purpose external device that has an RS-232C or
RS-422A/485 port, use the CX-Protocol to create a new protocol containing
the communications specifications for the general-purpose external device,
transfer these specifications to the Serial Communications Board or Unit, and
execute the PMCR(260) instruction.
Creating and transferring a new protocol
Serial Communications Board or Unit
Newly created protocol
Step 0
Sequence No.
specification
Step 1
Step 2
Shared memory
I/O refreshing
In this manual, the protocol structure is explained in simple terms, and exam-
ples are given of the use of the PMCR(260) instruction when controlling
Command execution (SEND, RECV, SEND&RECV)
Messages
RS-232C or RS-422A/485
General-purpose external device
Command execution (SEND, RECV, SEND&RECV)
Messages
RS232C or RS-422A/485
General-purpose external device
Section 5-1
147