IDEC MicroSmart - Manual (Page 20)

1: G ENERAL I NFORMATION
1-8 « FC4A M ICRO S MART U SER ’ S M ANUAL »
AS-Interface Network
The MicroSmart can be connected to the AS-Interface network using the AS-Interface master module (FC4A-AS62M).
AS-Interface is a type of field bus that is primarily intended to be used to control sensors and actuators. AS-Interface is a
network system that is compatible with the IEC62026 standard and is not proprietary to any one manufacturer. A master
device can communicate with slave devices such as sensors, actuators, and remote I/Os, using digital and analog signals
transmitted over the AS-Interface bus.
The AS-Interface system is comprised of the following three major components:
• One master, such as the
MicroSmart AS-Interface master module
• One or more slave devices, such as sensors, actuators, switches, and indicators
• Dedicated 30V DC AS-Interface power supply (26.5 to 31.6V DC)
These components are connected using a two-core cable for both data transmission and AS-Interface power supply. AS-
Interface employs a simple yet efficient wiring system and features automatic slave address assignment function, while
installation and maintenance are also very easy.
For details about AS-Interface communication, see page 2-58 and chapter 28.
Actuator-Sensor-Interface, abbreviated AS-Interface
Light Cur tain
Open Network (DeviceNet, CC-Link)
AS-Inter face
Gateway
AS-Inter face
Safety Monitor
AS-Interface Safety at Work
Emergency
Stop Switch
Manifold Solenoid Valve
Light Tower
(AS-Inter face
Direct
Connection Type)
MicroSmar t AS-Inter face Master Module
PS2R AS-Inter face Power Supply
SX5A AS-Inter face
Communication Terminal
IP67 Outside-panel Type
SX5A AS-Inter face
Communication Terminal
IP20 Inside-panel Type
SwitchNet Control Units
(AS-Inter face Direct Connection Type)
Sensor
(AS-Inter face Direct
Connection Type)
Sensor
The AS-Inter face Safety Monitor is required
to connect safety devices, such as the light
cur tain and emergency stop switch, to the
AS-Inter face line.
SwitchNet is an IDEC trademark for pushbuttons, pilot lights, and other control units
capable of direct connection to the AS-Inter face. SwitchNet devices are completely
compatible with AS-Inter face Ver. 2.1. TM
Maximum Communication Distance
Without repeater: 100 m
With 2 repeaters: 300 m