Omron G9SP Series

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