IMAC2B009 V2
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 31 of 53
Ampcontrol Pty Ltd
– ABN 28 000 915 542
iMAC System User Manual
iMAC2B009 V4
– 10/18
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Intrinsically Safe Remote Keypad
The iMAC2 Controller cannot be mounted directly in a hazardous area. For these applications, the
Controller is intended to be installed within a flameproof enclosure behind a viewing window. In order for the
user to operate the Controller in these circumstances, an externally mounted Intrinsically Safe iMAC
Remote Keypad (IRK) is required for each iMAC2 Controller. Pressing a keypad button on the IRK will
perform the same function as pressing the corresponding button on the iMAC2 Controller. The IRK provides
an exact functional mimic of the iMAC2
Controller’s keypad operation.
For further information on the IRK, including installation details, refer to the IRK’s technical datasheet.
Digital Input Modules
The iMAC System has three types of digital input modules available. These modules use voltage free
contacts as inputs and store the state of these inputs in the module
’s registers. These registers are available
to be accessed by the iMAC2 Controller, and any output modules that have been set to the same address.
Type
Description
Function
Example Application
DI4
4 x Digital Input
Module
Provides 4 x Digital Inputs
Allows remote inputs into the iMAC System
via the module’s voltage free inputs.
Can be used in hazardous areas.
DI8
8 x Digital Input
Module
Provides 8 x Digital Inputs
Allows remote inputs into the iMAC System
via the modules voltage free inputs.
IIM
Input and Indication
Module
Provides 5 x Digital Inputs
and 4 x LED Outputs
Voltage free inputs for the iMAC System
with programmable output LEDs for system
status indication.
Can be used in hazardous areas.
Analogue Input Modules
The iMAC System has three types of analogue input modules available. These modules allow analogue
inputs to be interfaced with the iMAC fieldbus.
The analogue input data is stored in the module’s registers.
These registers are available to be accessed by the iMAC2 Controller.
Type
Description
Function
Example Application
AIM
4-20mA
Analogue Input
Module (4-20mA)
Provides 1 x 4-20mA
Analogue Input
Analogue process control signal
measurement.
Can be used in hazardous areas.
AIM
0-10V
Analogue Input
Module (0-10V)
Provides 1 x 0-10V
Analogue Input
Analogue process control signal
measurement.
Can be used in hazardous areas.
RTD1
1 x Temperature
Input Module
Provides 1 x input for a
PT100 RTD temperature
sensor
Remote temperature monitoring.
Can be used in hazardous areas.
