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Chapter 4. Functions
CDS (compact data storage) is a function that stores health indexes and data such as SP, PV, and MV onto a microSD
memory card using our proprietary process data processing technology. Using the data accumulated with CDS,
process failures can be predicted and detected.
The specifications of the CDS function may differ depending on the version of the MAIN block firmware.
Specifications of older versions (p. 4-115)
z
Recording cycle/operation type
Data is written by CDS in the cycle set in "Recording cycle."
The CDS function operates and records data when the state set in "Operation type"
is ON.
The CDS function stops and does not record data if the state set in "Operation type"
is OFF or if "0: Stop" is set in "Operation type."
Handling Precautions
•
If the operation type has been set to DI1 or DI2, set the operation type of the
applicable DI/DO to DI in the DI/DO bank.
•
Changes made to the CDS bank setting during CDS operation are not reflected
in CDS operation. The changes will be reflected the next time that CDS
operates.
Item (bank)
Display
Description
Initial value
Recording cycle (CDS bank)
MENU > CDS
Recording cycle
0: Same as sampling cycle
1: 0.1 s
2: 1 s
3: 10 s
4: 1 min
5: 10 min
0
Operation type (CDS bank)
MENU > CDS
Operation type
0: Stop
1: DI1 status
2: DI2 status
3 and 10: Reserved
11: Event 1
12: Event 2
13: Event 3
14: Event 4
15: Event 5
16: Event 6
17: Event 7
18: Event 8
19: Event 9
20: Event 10
21: Event 11
22: Event 12
23: Event 13
24: Event 14
25: Event 15
26: Event 16
27 to 1023: Reserved
1024 to 2047: Standard bits
Standard Numerical Codes (p. 14-6)
0
4 - 19 CDS (Compact Data Storage)