Cyclical Input And Output Data Of The Swd Stations - Eaton easy800 Manual

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7.2 Cyclical input and output data of the SWD stations

7.2 Cyclical input and output data of the SWD stations
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Control Relay easy800 11/11 MN04902001Z-EN www.eaton.com
All input and output data of the SWD stations present are stored in a data
storage area of the easy800-SWD, the so-called process image. The
maximum input data is 800 bytes and the maximum output data 642 bytes.
In all the data area must not exceed 1000 bytes. The cyclical data exchange
between the easy800-SWD and the SWD stations is implemented with a
common data telegram. The input data can consist of several bytes,
depending on the station. The input data contains information such as the
switch position or diagnostic information.
The input and output data of the stations is assigned to the bit operands or
the value operands by means of an assignment list (see easySoft-Pro Online
Help). The operands can be wired like inputs and outputs in the circuit
diagram (see ￫ section "Wiring", page 80).
Overview of easy800-SWD bit operands
Bit operand Function
1)
I1 - I4 Local device inputs
I5 – I12 functionless
I13 SWD line group alarm
I14 always set to 1
I15 functionless
1)
I16 group fault alarm for short-circuit on Q1 or Q2.
I17 – I99 can be assigned to input data in the assignment table
1)
Q1/Q2 local device outputs
Q3 – Q16 functionless
Q17 – Q99 can be assigned to output data in the assignment table
1) only EASY806-DC-SWD
￫
Bit operand I14 on easy800-SWD is always set to 1. easy800
standard shows the status of the expansion device via I14.
easy800-SWD does not know any expansion devices and
therefore has no function.