Appendix 
 
FPΣ User's Manual 
278 
Description 
Item 
C32T2H(TM)  C24R2H(TM)  C28P2H(TM) 
Clock/calendar function 
Only available when a backup battery is installed (year, month, day, 
hour, minute, second and day of week) 
3)
 
Using instructions F12 
and P13 
Data registers (32765 words) 
F-ROM 
backup 
4)
 
Automatically when 
power is cut off 
Counter relays: 16 (1008–1023)
5)
 
Internal relays: 128 (R2480–R255F) 
Data registers: 55 words (DT32710–DT32764) 
Battery backup 
Additional hold areas specified in the system registers will be saved 
if the optional battery is installed.
6)
 
Potentiometer inputs 
2, resolution: 10 bits (0–1000) 
(for C32T2H, C24R2H, and C28P2H only) 
Thermistor inputs 
2, resolution: 10 bits (0–1000) 
(for C32T2HTM, C24R2HTM, and C28P2HTM only) 
Battery life 
220 days or more if no power at all is supplied (typical lifetime in 
actual use: approx. 840 days at 25°C/70°F) 
Suggested replacement interval: 1 year 
Comment memory 
328kByte 
PLC link function 
Max. 16 units, link relays: 1024, link registers: 128 words 
Other functions 
Editing in RUN mode, constant scan, on/off forcing of inputs/outputs, 
password protection, upload protection, floating-point operation, PID 
processing 
 
1)
  The actual number of points available for use depends on the hardware configuration. 
2)
  The number of points can be increased by using an auxiliary timer. 
3)
 
Precision of calendar timer: 
- At 0°C: less than 119 seconds error per month. 
- At 25°C: less than 51 seconds error per month. 
- At 55°C: less than 148 seconds error per month 
4)
 
Writing is possible up to 10000 times. When the optional battery is used, the entire area can be backed up. 
Areas to be held and not to be held can be specified in the system registers. 
5)
 
The status of the counter output and the elapsed value (EV) of the counter are backed up. The setting value 
(SV) is not held. 
6)
 
If the battery is empty or no battery is present and additional hold areas have been defined, the hold/non-hold 
operation becomes unstable.