Omron G9SP Series Manual page 46

Sample Ladder Programming for Siemens PLC
This section provides an example of programming to monitor Safety Input terminal data of a
G9SP-series Controller from a Siemens Standard PLC.
Ethernet Communications Sequence
The G9SP-series Controller returns a response to the command sent from the
Standard PLC.
Receive processing
after 300 ms
Receive processing
after 300 ms
Siemens PLC Memory Allocations
Start address End address
DB201.0 DB201.23
DB201.50 DB201.261
DB200.4.0 DB200.6.0
DB200.4.0 DB200.6.0
IW100 IW101
QW100 QW101
QW102 QW104
-
3-14
Standard PLC
Initialization
Send processing
Sent command
Reception response
Send processing
Receive processing
Sent command
Reception response
Send processing
Receive processing
Contents
Ethernet send command
Ethernet reception response
FC6 instruction control data
FC5 instruction control data
G9SP communications reception data
(written to G9SP-series Controller)
G9SP communications transmission
data (read from the G9SP-series Con-
troller)
G9SP Safety Input terminal data (read
from the G9SP-series Controller)
G9SP-series Controller
Send/Receive processing
Send/Receive processing
Data sent by the Standard PLC to the
G9SP-series Controller
Data received by the Standard PLC from
the G9SP-series Controller
Control data for the FC6 instruction is
stored.
Control data for the FC5 instruction is
stored.
Data written to G9SP-series Controller from
Standard PLC. Stored in the communica-
tions reception data of the G9SP-series
Controller. (Refer to Operation Manual
7-1-3 Transmission/Reception Data.)
Communications data sent from the G9SP-
series Controller is read. (Refer to Operation
Manual 7-1-3 Transmission/Reception Data.)
Safety Input terminal data of the G9SP-
series Controller is read. (Refer to Operation
Manual 7-1-3 Transmission/Reception Data.)
Description