Filter
Top Products
271
CHAPTER 4 FUNCTIONS
4
4.30 Buffer Memory Data Backup Function
(3) Data read from E
2
PROM
Follow the instructions below.
• Turn off and on the power or reset the CPU module and cancel the reset.
•Set CH E
2
PROM's PID constants read instruction (Un\G62, Un\G94, Un\G126, Un\G158) to Requested
(1). ( Page 127, Section 3.4.2 (36)) Data to be read are the PID constants and loop disconnection
detection judgment time for the corresponding channel only. ( Page 124, Section 3.4.2 (33))
(4) Precaution when executing the set value backup function
By executing this function, data are transferred to the buffer memory when the power is turned off and on or the
CPU module is reset and the reset is cancelled. This transferred data can be overwritten by setting parameters
on GX Works2.
To use the set values stored as backup data of the initial settings of the module, take either of following actions.
• Do not set parameters on GX Works2.
• When setting parameters on GX Works2, correct the set values of parameters to the ones stored as backup
data, and write the parameters to the CPU module.