IDEC MicroSmart User Manual
Page 25
2: M
ODULE
S
PECIFICATIONS
« FC4A M
ICRO
S
MART
U
SER
’
S
M
ANUAL
»
2-5
Communication Function
* Recommended cable for RS485: Twisted-pair shielded cable with a minimum core wire of 0.3 mm
2
.
Conductor resistance 85
Ω/km maximum, shield resistance 20 Ω/km maximum.
Built-in Functions
Memory Cartridge (Option)
Clock Cartridge (Option)
Communication Port
Port 1 (RS232C)
Port 2 (RS232C)
Communication Adapter
Port 2 (RS485)
Communication Adapter
Standards
EIA RS232C
EIA RS232C
EIA RS485
Maximum Baud Rate
19,200 bps
19,200 bps
Computer link: 19,200 bps
Data link:
38,400 bps
Maintenance Communication
(Computer Link)
Possible
Possible
Possible
User Communication
Possible
Possible
Not possible
Modem Communication
Not possible
Possible
Not possible
Data Link Communication
Not possible
Not possible
Possible
Quantity of Slave Stations
—
—
31
Maximum Cable Length
Special cable
Special cable
200m *
Isolation between Internal Circuit
and Communication Port
Not isolated
Not isolated
Not isolated
High-speed Counter
Maximum Counting Frequency
and High-speed Counter Points
Total 4 points
Single/two-phase selectable: 20 kHz (1 point)
Single-phase:
5 kHz (3 points)
Counting Range
0 to 65535 (16 bits)
Operation Mode
Rotar y encoder mode and adding counter mode
Sensor Power Supply
(AC power type only)
Output Voltage/Current
24V DC (+10% to –15%), 250 mA
Overload Detection
Not available
Isolation
Isolated from the internal circuit
Analog Potentiometer
Quantity
1 point (10- and 16-I/O type CPU)
2 points (24-I/O type CPU)
Data Range
0 to 255
Memory Type
EEPROM
Accessible Memory Capacity
32 KB
Hardware for Storing Data
CPU module
Software for Storing Data
WindLDR
Quantity of Stored Programs
One user program can be stored on one memor y car tridge.
Program Execution Priority
When a memor y car tridge is installed, the user program on the memor y car tridge is
executed.
Accuracy
±30 sec/month (typical) at 25°C
Backup Duration
Approx. 30 days (typical) at 25°C after backup batter y fully charged
Battery
Lithium secondar y batter y
Charging Time
Approx. 10 hours for charging from 0% to 90% of full charge
Battery Life
Approx. 100 recharge cycles after discharging down to 10% of full charge
Replaceability
Not possible to replace batter y