Omron SYSMAC CS Series Operation Manual page 205

Operating the Network
Example
Indirect Mode Changes
184
Below is an example ladder program, which changes the operational mode to
OPERATE, if the current mode is not OPERATE and non of the other mode
switches are set. The unit number for the example Unit is 0.
A200.11
000000
(000000)
P_First_Cycle
First Cycle
Flag
W0.00 1505.05
000001
(000002)
Go to Valid Cfg
OPERATE
1505.00
000002
(000010)
OPERATE Go to
mode OPERATE
Note If an attempt is made to change the operational mode, while a previous
change command is still being processed, the new command is ignored, and
the Mode command error bit flag (bit 12) in the Master Status 2 word (CIO
word n+6, see section 4-2-5 Master Status 2 (Word n+6)) will be set.
The Unit's operational mode can also be changed in indirect ways, i.e. without
direct user or program interference.
• Mode changes caused by Auto-CLEAR
When the Auto-CLEAR function has been enabled, and one or more of
the slave devices on the network stop I/O data exchange, the Master
Unit's operational mode will automatically change from OPERATE to
CLEAR. This is discussed in section 6-6-4 Using Auto-CLEAR.
• Mode changes caused by PLC mode changes
An operational mode change will take place if the PROFIBUS Master Unit
has been configured to change its operational mode together with the
PLC mode, i.e. OPERATE when the PLC mode is set to RUN/MONITOR
and CLEAR mode, when the PLC mode is changed to PROGRAM mode.
Refer to section 6-4-1 Setting the Master Parameters for more informa-
tion.
1505.01 1500.00 1504.01
STOP Set No errors
mode OPERATE
1505.03
OFFLINE
mode
W0.00
Section 6-6
SET
W0.00 Go to OPERATE
SET
1500.00
Set OPERATE
RSET
W0.00 Go to OPERATE