KEYENCE SR-750 Series - Manual (Page 94)

94 E SR-750 UM
11-1
EtherNet/IP
This section describes an overview of EtherNet/IP.
EtherNet/IP
EtherNet/IP is an industrial communications network proposed by ODVA (Open
DeviceNet Vendor Association, Inc.).
EtherNet/IP communication can share the network with normal Ethernet
communication.
„ Scanner and adaptor
In EtherNet/IP communication, one device opens a communication line called
"connection" to another device.
The device which opens the connection is called the "scanner" (originator), and the
receiving device is called the "adaptor" (target). A PLC is primarily used as the
scanner. The SR-750 becomes the adaptor device.
Cyclic communication and message communication
In EtherNet/IP, there is cyclic communication (Implicit message) that handles
periodic sending and receiving of data, and there is also message communication
(Explicit message) which handles sending and receiving of commands/responses
arbitrarily.
„ Cyclic communication
In cyclic communication, RPI (communication cycle) can be set according to the
priority of data that is sent and received. Overall communication load adjusted data
can be sent and received.
„ Message communication
In message communication, timing is controlled through commands/responses.
SR-750 Series EtherNet/IP Communication Specifications and Function Overview
„ SR-750 Series EtherNet/IP Communication Specifications
* There is a total of 16 connections in cyclic communication and message
communication.
Cyclic
communication
(Implicit message)
Number of
connections
16 *
Communication
size
KEYENCE KV Series 4 to 1444 bytes
Rockwell Automation
ControlLogix
CompactLogix
4 to 496 bytes
OMRON CJ/CS Series 4 to 1436 bytes
Message
communication
(Explicit Message)
Number of
connections
16 *
Applicable
messaging
methods
UCMM (unconnected type), Class 3 (connected
type)
Communication cycle (RPI) setting
SR-750 (1): 10 ms
SR-750 (2): 50 ms
SR-750 (3): 1000 ms
SR-750 (1)
RPI = 10 ms
SR-750 (2)
RPI = 50 ms
SR-750 (3)
RPI = 1000 ms
EtherNet/IP
PLC
The communication cycle (RPI) put together in order of priority can be set and network load can be adjusted.
Send
Receive
PLC
Receive
Process, operation
Send
SR-750
Command
Response
Data
Scanner adaptor
„ SR-750 Series EtherNet/IP function overview
The following describes the functions that can control the SR-750 Series using
EtherNet/IP.
List of applicable PLC models
Refer to each PLC instruction manual for the corresponding PLC setting
procedures.
PLC manufactured by KEYENCE
PLC manufactured by Rockwell Automation
PLC manufactured by Omron
Function Description
Reading instruction Performs reading instructions.
Also performs reading end, bank setting reading, etc.
Preset instructions Records successfully read data as preset data.
Also registers or deletes preset data from the PLC.
Calibration
instructions Performs calibration. Can save calibration results in the set bank.
Error-handling Checks the cause of the error that occurred in the main unit, and
returns the error.
(Example: Buffer overflow check/cancellation)
Main unit status
acquisition Checks the main unit status (BUSY status).
Operation results
acquisition Acquires read data.
When set to silent mode, the read data is not updated.
Terminal status
acquisition Acquires input terminal and output terminal status.
Main unit reset
instructions Displays the SR-750 Series software reset.
NOTICE
About the exclusion process
The SR-750 Series can simultaneously give control instructions to
multiple interfaces (I/O terminal, RS-232C, Ethernet Communication
(TCP/IP), EtherNet/IP communication, test key operation). However,
when a control instruction is being received from one interface,
instructions from other interfaces cannot be received.
KV Series
PLC model
EtherNet/IP
Communication unit
Firmware
version
Software used
Version of
software used
KV-3000 KV-EP21V Ver. 2 or later KV STUDIO Ver. 6.0 or later
KV-5000 KV-EP21V Ver. 2 or later
KV-5500 -(KV-5500 built-in
port or KV-EP21V) Ver. 2 or later
ControlLogix category PLC
PLC model
EtherNet/IP
Communication unit
Firmware
version
Software used
Version of
software used
1756 ControlLogix 1756-ENBT/1756-
EN2T
Ver. 13 or later RsLogix5000 Ver. 13 or later
1769
ConpactLogix -(SR-750 built-in
port) Ver. 13 or later
SLC5/05 category PLC
PLC model
EtherNet/IP
Communication unit
Firmware
version
Software used
Version of
software used
1747 SLC5/05 -(SR-750 built-in
port) OD firmware
level Series C,
FRN 10 or later RsLogix500 Ver. 7.10 or later
1761/1766
MicroLogix -(SR-750 built-in
port)/1761-NET-
ENI Series A,
Revision A,
FRN1
1762/1763/1764
MicroLogix 1761-NET-ENI
PLC model
EtherNet/IP
Communication unit
Firmware
version
Software used
Version of
software used
SYSMAC CJ2 -(CJ2 built-in port
or CJ1W-EIP21) Ver. 1.0 or later CX-One Ver. 3.0 or later
SYSMAC CJ1 CJ1W-EIP21 Ver. 1.0 or later
SYSMAC CS1 CJ1W-EIP21 Ver. 1.0 or later