IDEC MICROSmart FC6A Series User Manual page 53

Backup Function
Backup Data
Backup Battery
Battery Life
Replaceability
*1 To prepare for when the battery dies, the contents of RAM (internal relays, shift registers, counters, and data registers) can be saved to non-
volatile memory. For how to save the contents of RAM, see "SD Memory Card" on page 11-1.
*2 The battery is primarily consumed by backup current while unpowered. However, the ambient environment (temperature and humidity) while
unpowered and powered also affects consumption. In particular, battery life is greatly reduced in a high-temperature and high-humidity
environment, so replacement is recommended every year when the effect of the ambient environment (temperature and humidity) while
unpowered and powered is included.
*3 Replacement while powered and replacement while power is supplied from the USB bus are also possible. For the replacement method, see
"Replacing the Backup Battery" on page 3-34.
Clock Function
Accuracy
Self-diagnostic Functions
Keep data

User program (ROM) CRC check

Timer/counter preset value change check

User program syntax check

User program execution check

Watchdog timer check

User program download check

Input Filter
0 ms (no filter), 3 to 15 ms selectable (in 1 ms increments)
Catch Input/Interrupt Input
High-speed 4 Points (I0, I1, I6, I7)
Medium-speed 2 Points (I3, I4)
High-speed Counter
Maximum Counter
Frequency and Points
Count Range
Operation Mode
RAM (internal relays, shift registers, counters, data registers)
Lithium ion primary cell (A battery is included with the product. The model of battery to be included
with the product cannot be specified.)
Panasonic: BR2032/CR2032A/CR2032B, Murata: CR2032X/CR2032W
Guaranteed 1 year, replacement recommended every 4 years (+25°C)
Replace within 1 minute after power off (recommended)
±30 seconds/month at 25°C
Minimum turn on pulse width:
Minimum turn off pulse width:
Minimum turn on pulse width:
Minimum turn off pulse width:
Single-phase, two-phase common:
Single-phase dedicated:
Single-phase, two-phase common:
Single-phase dedicated:
Rotary encoder mode, adding counter mode, frequency measurement mode
FC6A S MICROS
ERIES MART
*3
Power failure

Clock error

Data link connection check

Expansion bus initialization check

System check

SD memory card transfer check

SD memory card access check

5 μs
5 μs
35 μs
35 μs
100 kHz (single-phase 4 points max, two-phase 2 points max)
5 kHz (2 points)
0 to 4,294,967,295 (32 bits)
0 to 4,294,967,295 (32 bits)
U ' M FC9Y-B1722
SER S ANUAL
2: P S
RODUCT PECIFICATIONS
*1
, clock
*2
2-17