IMAC2B009 V2
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Ampcontrol Pty Ltd
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iMAC System User Manual
iMAC2B009 V4
– 10/18
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iMAC2 Controller LEDs
The iMAC2 Controller has four LEDs. There are two green LEDs (L1/L2) that are user programmable and
two red LEDs (COMMS IN/OUT) that are used to display serial communication activity.
10.3.1 User Programmable LEDs
The L1 and L2 LEDs are green in colour and their operation is determined by the application (SLP)
software. The application software can turn the LEDs on, off, fast flash or slow flash under any logical
combination of I/O data e.g. L1 open or short circuit, EOL fault or L2 Active etc.
The typical L1 and L2 LED operation is L1 on with CR and L2 on with AR, while a fast flash usually indicates
the L1 fieldbus is short circuited.
10.3.2 Communications LEDs
The COMMS IN and OUT LEDs are red in colour and indicate that the Controller is receiving and
transmitting serial communications data. The corresponding LEDs flash whenever serial data is being
transmitted or received.
Selectors & DIP Switches
The iMAC2 Controller has a 16 position rotary selector switch and a set of 4 DIP switches accessible from
the side wall of the enclosure. These can be used as inputs into the application (SLP) software to perform
user defined functions. A typical function of the rotary switch is to set the network address for the iMAC2
Controller when it is installed in an iMAC network. The DIP switches can be used to activate certain
functions in the application software, such as changing the iMAC fieldbus communications line speed.
