Frequently Asked Questions: CR500
Can I use the manual for the CR510 to answer any questions I have regarding my CR5000?
The CR510 has all the channels, features and instructions that the CR500 has in addition to the following: The scan interval resolution is1/64 in the CR510 and 1/8 in the CR500. There is a Final Storage Area 2, in the CR510 that is not in the CR500. Battery backed clock in the CR510, that is not in the CR500. Memory: 128K Flash and 128K SRAM in CR510, CR500 only has 32K SRAM and 128K Flash. There are several programs in the CR510 that are not in the CR500. You can get 1 Meg and 2Meg memory options for the CR510 that are not available in the CR500. Available Operating Systems in the CR510, were Standard, Modbus, Alert, Table Data and Pakbus. Only Standard Operating Software and Alert were available for the CR500.
If I disconnect a CR500 power source, does it keep the stored data in the flash memory, or erase definitively?
The CR500 has battery back up RAM. If power is lost, final storage data is still retained. When power is restored final storage data can be accessed. There is 64K for final storage data. Four 16K sectors. When memory is full, the 16K sector with the oldest data is completely erased. The new data is stored in that sector.
Which protocol do you use to communicate your CR500 datalogger with the modem?
We communicate through the CS/IO port on the CR500 at 300, 1200 or 9600 bits per second, 8 data bits, no parity, 1 stop bit and no flow control.
Refer to Appendix B of the CR510 Manual for more information.
