IDEC MICRO3 User Manual

1: GENERAL INFORMATION
USER’S MANUAL 1-9
Communication and Noise Specifications
Loader Port Communication Specifications
◆ For the MICRO
3
C specifications, see the MICRO
3
C User’s Manual. ◆
Data Link Terminal Communication Specifications
◆ For the MICRO
3
C specifications, see the MICRO
3
C User’s Manual. ◆
Noise Immunity Specifications
Noise Emission Specifications
Standards EIA RS485 (termination resistor is not required)
Connection to Program Loader Using optional loader cable (FC2A-KL1 or FC2A-KL2)
Cable
1:1 Communication Using optional computer link cable FC2A-KC2
1:N Communication Using ø0.9-mm shielded twisted pair cable
Conductor Resistance 85 Ω/km maximum
Shield Resistance 12 Ω/km maximum
Slave Stations 32 maximum in the 1:N network communication
Maximum Cable Length 200m (656 ft.) between RS232C/RS485 converter and most distant station
RS232C/RS485 Converter FC2A-MD1
Computer Link Interface Unit FC2A-LC1
Standards EIA RS485 (termination resistor is not required)
Recommended Cable ø0.9 mm shielded twisted cable
Conductor Resistance 85 Ω/km maximum
Shield Resistance 12 Ω/km maximum
Maximum Cable Length 200m (656 ft.)
Isolation
Between data link terminals of multiple MICRO
3
C units: Not isolated
Baud Rate 19200 bps (fixed)
Communication Delay
Expansion link: Master station normal scan time + approx. 9 to 10 msec
Data link: Master station normal scan time + approx. 12.5 to 13 msec
+ Slave station scan time
Electrostatic discharge (IEC 801-2)
RH-1/ESD-3 Level 3 (8 kV)
Field withstandability (IEC 801-3)
Level 3 (10 V/m)
Damped oscillatory wave withstandability (IEC 801-4)
Power supply 1 kV
Digital I/Os 1 kV
Fast transient withstandability (IEC 801-4)
Power supply Level 3 (2 kV)
Digital I/Os
Level 4 (2 kV)
Analog I/Os, Communication I/Os: Level 3 (1 kV)
Radiated emission (EN55011)
Group 1 class A
Line conduction (EN55011)
Group 1 class A

IDEC MICRO3 Specifications

General

Brand	IDEC
Model	MICRO3
Category	Controller
Language	English