Overview Of The Protocol Macro Functions; Protocol Macro Functions; Using The Protocol Macro Function - Omron SYSMAC CS1W-SCB41-V1 Operation Manual

Overview of the Protocol Macro Functions

5-1 Overview of the Protocol Macro Functions
5-1-1

Protocol Macro Functions

5-1-2

Using the Protocol Macro Function

Using the Standard
System Protocols
CPU Unit
Sequence
number
I/O memory
Modifying Standard
System Protocols
146
The protocol macro function is used to control devices by using the
PMCR(260) instruction in the ladder program to execute the data communica-
tions sequences (protocols) with the various communications devices, such
as general-purpose devices, connected to the RS-232C or RS-422A/485 port.
Standard system protocols are provided in the Serial Communications Board
or Unit for controlling OMRON devices (such as Digital Controllers and Tem-
perature Controllers).
Using the Protocol Support Tool called the CX-Protocol, the protocol macro
function can be used to create new protocols for commercially available mea-
suring instruments and devices, and to create protocols by modifying one of
the standard system protocols. The standard system protocols are also pro-
vided with the CX-Protocol.
For details on the use of the CX-Protocol and the protocol macro function,
refer to the CX-Protocol Operation Manual (W344).
The following three methods are available for using the protocol macro func-
tion.
When connecting OMRON devices, data is sent and received between the
CS/CJ-series CPU Unit and these devices by specifying the sequence num-
ber of the standard system protocol provided in the Serial Communications
Board, Serial Communications Unit, and CX-Protocol, and executing the
sequence using the PROTOCOL MACRO instruction (PMCR(260)).
Serial Communications Board or Unit
Standard system protocol
Sequence No. 001
Step 0
Sequence No.
specification
Step 1
Shared memory
I/O refreshing
Note The devices for which standard system protocols are provided are listed
below. For details, refer to 5-4 Using Protocol Macros.
Digital Controllers (E5@K, ES100@), Temperature Controllers (E5ZE,
E5@J), Intelligent Signal Processors (K3T@), Bar Code Readers (V500/
V520), Laser Micrometers (3Z4L), Visual Inspection Units (F200/F300/
F350), ID Controllers (V600/V620), Hayes Modem AT Command, and de-
vices supporting the CompoWay/F protocol.
When connecting OMRON devices, if there is no standard system protocol or
you wish to modify part of the protocol, use the CX-Protocol to modify the
standard system protocol, transfer this as a separate communications
* Send/receive messages are
stored in the area one or more
words after the send data
address or the receive data
address specified in the
Messages
PMCR(260) instruction.
OMRON devices
Section 5-1