KEYENCE SR-750 Series - Manual (Page 95)

95 E SR-750 UM
11-2
Cyclic communication
This section describes the SR-750 Series cyclic communication setting procedures
and functions.
SR-750 Series cyclic communication
When cyclic communication is performed in the SR-750 Series using EtherNet/IP,
SR-750 series functions are assigned to the PLC devices. Use the function
allocated to each device according to the intended usage.
Cyclic communication setting procedures
This section describes the setting procedures when performing cyclic
communication.
SR-750 Series settings
For the SR-750 Series, use the AutoID Network Navigator and perform the
following settings.
1
Communication 1 tab
• IP address setting
• Subnet mask setting
• Default gateway setting
NOTICE
• Communication settings such as cyclic communication's
communication cycle and data size are performed in the PLC.
When there is a large load in the network which connects many
devices including EtherNet/IP devices, delays or packet loss
may occur. Perform a thorough verification before operation.
• When performing EtherNet/IP communication with PLCs (SLC5/
05 MicroLogix Series manufactured by Rockwell, etc.) that do
not support cyclic communication, use message
communication.
Reading result
Handshake information
Device status
Busy/error information
Statistical information
Reading instruction
Handshake instruction
Calibration
Reading result
Handshake information
Device status
Busy/error information
Statistical information
Reading instruction
Handshake instruction
Calibration
IN area
OUT area
OUT area
IN area
Communication cycle (RPI)
Set with PLC
2
Communication 2 tab
• Set the PLC communication interface and protocol.
Interface : Ethernet
Protocol : EtherNet/IP
3
PLC communication's EtherNet/IP settings
Click the EtherNet/IP setting button, open the EtherNet/IP setting screen, and
perform the following settings.
•
: Set "maximum result data size + 44 bytes" or
more.
• Data handshake : Put a check on this when performing a
handshake process.
• Data area byte swap : The storage order of data memory (Read
result data/Preset data) can be changed.
Disable: Writes data in an ascending order.
Enable: Writes data in a descending order.
PLC settings
„ About PLC settings
When performing cyclic communication, perform the following settings in the PLC.
(1) Settings for the connection used
(2) Device settings used in cyclic communication
(For setting procedures, refer to the manual of each PLC.)
* When using the KV Series, making a selection within KV STUDIO will
automatically set (1) and (2).
„ Connection used
Open a connection from the scanner using EtherNet/IP during cyclic
communication.
There are various types of connections. Usable connections vary depending on the
device.
Connections that the SR-750 Series can use are as follows:
• Exclusive Owner
This connection can perform the following communications.
• PLC → SR-750 ............ Control instruction
• SR-750 → PLC ................. Data Send
Use this connection to send read data of SR-750, and also when PLC performs
control instruction to SR-750 such as start of reading.
Multiple "Exclusive Owner" connections cannot be used for a single unit of SR-
750.
Connection type Data type Instance ID Size (byte) RPI (ms)
Exclusive Owner
(Data transmission +
control)
Result data
(Input Assemblies)
0X64(100) 40 to 1400
10 to 10000
Control data
(Output Assemblies)
0X65(101) 8 to 1400
Input Only
(Data transmission
only)
Result data
(Input Assemblies)
0X64(100) 40 to 1400
10 to 10000
Control data
(Output Assemblies)
0XFE(254) 0
Input assembly (send)/
Output assembly (receive) size