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Doc # E107706 V1.25 5-15
5.12:
Steps
to
Determine
Power
Needed
• Available power for All Ports of the Nexus 1250/1252 is 12 VA.
• Refer to the table below to determine the VA Ratings for I/O modules and displays.
• Add together the VA Ratings for I/Os and Displays in use.
• Compare Available Power to Power Needed to determine if you must use an additional
power source. EIG recommends the PSIO 12V power source. See section 9.2.1.
5.13:
I/O
Modules’
Factory
Settings
and
VA
Ratings
All I/Os are shipped pre-programmed with a baud rate of 57600 and addresses. The table below
details the factory-set address for each module and the VA Ratings for I/O modules and Nexus
displays. Refer to the previous section (section 5.12) for the steps to determine if you must use an
additional power source. For programming, refer to Chapter 8 of the Communicator EXT User
Manual.
I/O MODULES’ FACTORY SETTINGS AND VA RATINGS
MODEL NUMBER
1mAON4
1mAON8
20mAON4
20mAON8
8A11
8A12
8A13
8A14
4RO1
4PO1
8D11
MODULE
0-1mA, 4 Analog Outputs
0-1mA, 8 Analog Outputs
4-20mA, 4 Analog Outputs
4-20mA, 8 Analog Outputs
0-1mA, 8 Analog Outputs
0-20mA, 8 Analog Outputs
0-5V DC, 8 Analog Outputs
0-10V DC, 8 Analog Outputs
4 Latching Relay Outputs
4 KYZ Pulse Outputs
8 Status Inputs (Wet/Dry)
NEXUS DISPLAYS’ VA RATINGS
ADDRESS VA RATING
128 2.7 VA
128 3.2 VA
132 5.0 VA
132 8.5 VA
136 2.3 VA
140 2.3 VA
144 2.3 VA
148 2.3 VA
156 2.7 VA
160 2.7 VA
164 1.0 VA
P40N, P41N or P43N
P60N
Nexus LED Display
Nexus Touch Screen Display
8 VA
5 VA