Atlas Copco PowerMACS 4000, User Manual

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Peripheral Devices
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8.12 Fieldbus Interface
On a tightening controller it is possible to have a fieldbus slave interface module mounted. This makes it
possible to interact with your PowerMACS system from a fieldbus master. A fieldbus device handles
access via fieldbus.
Currently the following fieldbuses are supported:

Profibus-DP and DP-V1

DeviceNet

Modbus TCP

EtherNet/IP

ProfiNet IO
Using a fieldbus device you can access the following PowerMACS functions:

Read and write PLC signals

Read cycle data

Read events

Read traces

Read and write complete setups
From PowerMACS point of view most fieldbus types looks the same.
To access the PowerMACS system via a fieldbus you first have to add a fieldbus device, as described in
chapter: Add a device, to TC that has a PLC, i.e. the first TC in a station.
A PowerMACS PLC can only access a fieldbus interface that is mounted on the same TC as the PLC is
running on.
Note! The DeviceNet GM is a special case in the sense that its input and output maps are predefined and
fixed. The inputs and outputs of the interface is not accessible from the PowerMACS PLC but are
handled by the PowerMACS station controller it self. This means that the contents of the following
chapters: Access to PLC data and Access to Process data are not valid for the DeviceNet GM
alternative.
Regardless of which type of fieldbus interface you use the following model describes how it is interfaced
with the PowerMACS system.
Note! In PLC programs generated with the setup wizard from version 7.2.0 the PLC In area starts at
address 30000 instead of 3300 and the PLC Out area starts at address 30000 instead of 3000.
On the fieldbus interface there is a memory area that is accessible from the fieldbus master as well as the
PowerMACS.