Data Flow - Omron SYSMAC C200H-TC Operation Manual

Data Flow

3-2 Data Flow
Data Settings from Data
Setting Console
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The data flow in the Temperature Control Unit is shown in the diagram below.
Temperature
Control Unit
Read
Data Setting
Console
The read operation and setting the executed bank number are possible from a
user program or from a device, such as the Programming Console, regardless of
the ON/OFF setting of SW2-2.
Data written from the Data Setting Console and data written with the EEPROM
write commands when SW2-1 (switching memory contents) is set to Normal are
written to the Temperature Control Unit EEPROM and are consequently re-
tained when the power supply is turned OFF.
Data written with RAM write commands when SW2-1 (switching memory con-
tents) is set to Normal, the SP value set when SW2-1 (switching memory con-
tents) is set to Fixed and executed bank number settings made from the CPU
Unit are written directly to RAM and are not saved to EEPROM. This data is lost
when the power supply is turned OFF.
Set SW2-2 under the display cover to the OFF position to enable data setting
from the Data Setting Console.
While Temperature Control Unit is in control operation, all data can be set using
the specified executed bank number (default value = 1).
Change the executed bank number with a user program or with a device, such
as the Programming Console. The executed bank number cannot be changed
from the Data Setting Console.
Under either one of the following conditions (i.e., when control is stopped), the
bank number can be changed to set data using the Data Setting Console.
When SW203-5 on the rear panel is set to ON (to stop temperature control in
the PROGRAM mode) and the CPU Unit is set to PROGRAM mode.
When the Stop Bit (word n+2, bit 06 for Loop 1 and bit 04 for Loop 2) is ON.
If SW2-2 is ON
Write
I/O bus
CS1,
C200H-CPU
Read
Write
If SW2-2 is OFF
Section 3-2
23