2: MODULE SPECIFICATIONS
« FC4A MICROSMART USER’S MANUAL » 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 Rotary 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 memory cartridge.
Program Execution Priority
When a memory cartridge is installed, the user program on the memory cartridge is
executed.
Accuracy ±30 sec/month (typical) at 25°C
Backup Duration Approx. 30 days (typical) at 25°C after backup battery fully charged
Battery Lithium secondary 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 battery
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