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14. PROFIBUS-DP
14.1
I/O Sizes
Outputs
Outputs are defined as any valve solenoid coil and/or any discrete output point from any output module. The output
size depends upon the physical configuration of the manifold (i.e. module type and how many are used).
Inputs
Inputs are defined as physical input bits from input modules
Valve Side
The size for the "valve side" of the manifold consists of an output bit for each valve solenoid coil driver. This value
for the valve side size is 4 bytes of outputs
Discrete Side
The discrete side of the manifold is defined as all I/O modules connected to the left of the communication node.
This includes physically attached modules as well as any distributed sub-bus modules.
side are automatically configured based on the I/O module type installed. However, the user can affect these sizes
manually via settable parameters on the node. The output value consists of physical outputs (i.e. output bit for each
output point). The input value consists of physical inputs (i.e. an input bit for each input point).
Total I/O Size
The overall size of the I/O data for the manifold will consist of the valve size plus the discrete I/O size. The I/O size
can vary greatly, due to the many physical configurations. The worksheet on page 14-141 will allow accurate sizing
of the I/O data.
G3 Series PROFIBUS-DP
Mapping
TM
TDG3PTTM1-11EN
Subject to change without notice
www.asco.com
TM
Technical Manual
I/O sizes for the discrete
07/2020
14-140
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