Simplicity 514067-UAD-A-0509 manual Flash Memory Management, Modbus Communication Alarm

Page 3

514067-UAD-A-0509

FLASH MEMORY MANAGEMENT

The Flash Memory chip used in the Simplicity® controllers has a 1,000,000 write cycle rating.

To prevent premature failure of the flash memory, it should not be written to more often than once every 10 minutes, on average.

Under unusual circumstances it could take up to two minutes for newly updated data to be seen.

ADDITIONAL CAPABILITY

MODBUS COMMUNICATION ALARM

One digital point is available to indicate communication problems between the Simplicity®LINC and the UP controller. BI 84 (MODBUS_ALARM) is used to indicate Modbus communication problems between the Simplicity®LINC Gateway and the UP controller. When "on" this point indicates loss of Modbus communication. The last data received from the UP controller remains in the Simplicity®LINC and it continues to function as if communications were normal.

NOTE: The MODBUS ALARM (BI84) is the only method to verify communication between the Simplicity®LINC and UP controller.

Johnson Controls Unitary Products

3

Image 3
Contents Overview Wire ConnectionsBaud Rate Selection Settings ConnectionModbus Connection Flash Memory Management Modbus Communication AlarmInst Default Min Max Point DescriptionPoints List in Description Order BACnet Read ObjectBACnet Read Object Write Inst Descriptor Default Min Max Point DescriptionMax Point Description Efreezest Lowsupvolt Read Object Write Default Min Max Point DescriptionPoints List in Object Order ALARM3 Spcealmtim Points List in Object Order Descriptor Default Min Max Point Description Iifanstat Simplicitylinc Gateway TroubleshootingSimplicitylinc Gateway LED Location PWRJohnson Controls Unitary Products York Drive Norman, OK