MDS NETio Series, Installation & Operation Manual

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MDS 05-4457A01, Rev. A MDS NETio Installation & Operation Guide 53
3.3 MAPPING INPUTS TO OUTPUTS
FOR SIGNAL EXTENSION AND
REGENERATION
One of the primary uses of NETio is to regenerate I/O signals connected
to NETio modules as outputs from NETio modules at a
different loca-
tion. This is accomplished by mapping.
Figure 3-7 shows a simplified representation of mapping. A 4-20 mA
analog input is connected to a NETio Base Module with a Unit ID of
7769. This input is mapped o a 4-20 mA analog output connected to a
NETio base module with a Unit ID of 7770.
Invisible place holder
Figure 3-7. I/O Mapping Overview
I/O signals can be mapped between NETio Modules anywhere on the
wireless network. The only limitations are that a single unit can be
mapped to a maximum of 4 output locations and an input can only map
to an output of the same general type (analog-to-analog and dis-
crete-to-discrete).
3.3.1 Setting the Source Field for Mapping
Mapping is accomplished simply by setting the address of the input
signal into the source field in an output point.
Figure 3-8 shows the Analog Output Menu with the source field set to
NO SOURCE
.
I/O Mapping Overview
AI -1
4-20 mA
• Unit ID = 7769
• Module ID = 0
• Analog Input # 1
Address = 7769,0,A1
4-20 mA
AO -1
•
Unit ID = 7770
• Module ID = 0
• Set Analog Output #1
Source Field to
7769,0,A1
•
MAP
FROM AI #1 on 7769
TO
AO #1 on Unit 7770
• Unit ID = 7769
• Unit ID = 7770