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橫河AND20-F42接口
GENERAL
A node consists of the Node Interface Unit (NIU) and
Process I/O Unit (IOU). The NIU offers an interface function to send analog and contact I/O signals from
a field to the Field Control Unit (FCU) via an RIO bus,
and it offers the function to supply power to the IOU.
ANS20, AND20 is a Cabinet Installation Type NIU,
which is used for single and redundant RIO bus. As
for 19¨ Rack Mountable Type NIU (Model ANS50,
AND50) refer to GS 33M50K20-40E.
The IOU consists of I/O module for connecting
process signals, and I/O module nest to store the
module. For details, refer to GS 33M50K30-40E “I/O
Module Nests I/O Modules.”
Model ANS20 Node Interface Unit for Single RIO bus (Cabinet Installation Type)
Suffix Codes -F For Installation in the Front of FCU (for 4 I/O Module Nests)
-R For Installation in the I/O Cabinet and Rear of FCU (for 5 I/O Module Nests)
