KEYENCE SR-750 Series - Manual (Page 85)

85 E SR-750 UM
9-1
PLC Link
This chapter presents an overview and the control method of the PLC link.
PLC Link
The PLC link allows the SR-750 Series to directly write data into the internal
memory of the PLC (programmable logic controller) via the RS-232C interface and
Ethernet interface.
Since the SR-750 Series directly controls memory in the PLC, it eliminates the
need for a communication program. Therefore, man-hours needed to create
programs can be reduced.
Important The following restrictions are imposed regarding the use of the
PLC link:
• The SR-750 configuration cannot be changed via PLC link.
• Test mode cannot be activated via PLC link.
• Operation command and setup command cannot be sent via
PLC link.
• Due to long communication time, it is not suitable for a line that
requires high-speed processing.
• The amount of data that can be processed depends on the
output data length. A maximum number of digits is 100.
(Default output data length is 64 digits.)
List of supported PLCs
RS-232C Interface
„ KEYENCE
„ Mitsubishi Electric
„ OMRON
* A serial option board is necessary, depending on the model.
Ethernet Interface
„ KEYENCE
„ Mitsubishi Electric
Series name Connection method Model
KV Series
CPU built-in port KV-3000, KV Nano Series
Communication unit
KV-L20V/L20R,
KV-N10L/NC10L/NC20L
Series name Connection method Model
MELSEC Series Serial communication unit
QJ71C24N/-R2
LJ71C24/-R2
Series name Connection method Model
SYSMAC Series
CPU built-in port
CS1 Series
CJ1 Series
CJ2 Series
*
CP1 Series *
Serial option board
CP1W-CIF01
CP1W-CIF11
CP1W-CIF12
Serial communication unit
CJ1W-SCU□□(-V1)
CS1W-SCU□□-V1
Communication board CS1-SUB□□-V1
Series name Connection method Model
KV Series
CPU built-in port KV-5000/5500
Ethernet unit KV-LE21V/LE20V, KV-NC1EP
Series name Connection method Model
MELSEC Series
CPU built-in port
Q03/04/06/10/13/20/26/50/
100UDECPU
L02CPU/06CPU/26CPU-BT
Ethernet unit QJ71E71-100/-B5/-B2
Devices that can be used
Devices accessible via PLC link are as follows:
• The available range is a maximum value of the device accessible when the PLC
link function is used. To specify the DM front address, control region address, or
response region address, configure by taking into account the number of
necessary devices.
• The device region that can actually be used may not be configured up to a
maximum value or may include unavailable area, depending on specifications
and configuration. For more information on available regions, refer to the
appropriate PLC manual.
*1 AutoID Network Navigator entry field range: to
*2 AutoID Network Navigator entry field range: to
• Specifying the Control region address and the Response region address
Inputting in the AutoID Network Navigator entry field means that the shaded
area as indicated below is specified.
9-2
Configuration
This section describes the configuration of the SR-750 Series and PLC.
SR-750 Series configuration
Configure the SR-750 Series using the AutoID Network Navigator as follows:
1
Set the interface to "RS-232C" or "Ethernet" under the PLC
communication in the Communication 2 tab.
• When the interface is set to "RS-232C", command communication and PC
host output interface configuration are switched to "Not used".
2
Select the protocol appropriate for the PLC to be used.
• Mitsubishi MELSEC Series : MC Protocol
• OMRON SYSMAC Series : SYSWAY * RS-232C only
• KEYENCE KV Series : KV STUDIO
3
-1 When the interface is set to RS-232C, set "Baud rate", "Data
length", "Stop bit length" to match the configuration in the PLC.
3
-2 When the interface is set to Ethernet, set "IP address" and "Port
number" in the PLC.
4
Set "PLC link timing input".
To perform read operation using A00: PLC timing area, set "PLC link timing
input" in the [Table] tab to "Enable".
To input the timing signal directly into the SR-750 Series, set it to "Disable".
5
Set "DM address", " Control region address", and "Response region
address".
"9-3 Device Assignment (Page 87)"
PLC Specified area Device name Available range
KV Series
Control region
Input relay, output relay R100 to R59915 *1
Response region
Data region
Data memory DM0 to DM65534
MELSEC Series
Control region Input device Y0 to Y7FF *2
Response region Output device X0 to X7FF *2
Data region Data register 0 to 32737
SYSMAC Series
Control region CIO, internal auxiliary
relay
0 to 6143 ch
Response region
Data region
Data memory D0000 to D9999
F E D C B A 9 8 7 6 5 4 3 2 1 0
1
2
←Front address
3
4
5
1 599
0 7F
2