Parameter Backup - Omron E5ZD Operation Manual

Parameter Backup

3-4

Parameter Backup

Caution Transfer to EEPROM requires 3.5 seconds or less for Fuzzy-logic Controllers
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parameters must be used for each, as each control point still has its own memory
settings in each memory bank.
The method of memory bank designation is set using SW5 (SW503). If input ter-
minal status is chosen as the designation method, the status of the BANK0,
BANK1, BANK2, and ING terminals on CN1 determine the current memory bank
and designation by host computer command is disabled. The host computer is
able to read the current memory bank regardless of the designation method.
Actual input terminal status and commands to set the current memory bank are
not described here. Refer to Section 2 for input terminal status, and Section 4 for
commands.
Inside the E5ZD, there are two types of memory used to store parameters. One
is RAM, which is erased when power to the E5ZD is turned OFF; the other is
non-volatile memory (EEPROM), which is used for permanent parameter stor-
age. When parameters are set via commands from the host computer they are
written into RAM. To preserve these parameter when power is interrupted or
turned OFF it is necessary to use the WE command to transfer parameters to
EEPROM. WE transfers all parameters for all control points at once. The move-
ment of parameter settings is as shown below.
and 2.3 seconds or less for other Controllers, delaying the response to WE. To
Section 3-4