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Appendix D
Saving Data
Function
All temperature control data set with the E5ZE using serial communications will be deleted if the E5ZE is turned
OFF without saving the temperature control data.
Execute the Memory Write (WE) command to save temperature control data set with the E5ZE.
Data set using DeviceNet communications will not be deleted even if the power is turned OFF.
Save
Use the following procedure to save the temperature control data set with the E5ZE in the memory.
1, 2, 3...
1. Transmit the WE command to the E5ZE.
2. After transmitting the WE command, confirm that the response transmitted
from the E5ZE is normal.
If the E5ZE is turned OFF before the E5ZE completes transmitting the response of the WE command, the temper-
ature control data set with the E5ZE may not be saved and when the power is turned ON again a memory error may
occur.
Confirming Saved Data
Transmit the Status Read (RX) command to read the operating status of the E5ZE. Check the status code of the
response to confirm whether the data has been saved.
Data Processing
The following shows how the temperature control data set with the E5ZE is processed.
Host device
Set
data
Data is exchanged using
communications.
E5ZE
Communications block
Communications
errors checked.
If there are no communica-
tions errors, set data is read
and written.
Control block
Control area memory
Set
data
Operates and
controls based
on set data.
Data deleted
if power is
turned OFF
All set data is transferred
using the WE command.
Set data is automatically transferred
after the power is turned ON.
Set
data
Storage area memory
Backup lithium battery
Data saved
when power
is turned OFF.
