PFEA112-65 3BSE050091R65 ABB Tension control system module (in stock)

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Product Description

Product Description
PFEA112-65 3BSE050091R65 ABB Tension control system module (in stock)
PFEA112-65 3BSE050091R65 ABB Tension control system module (in stock)
Our Email: 2235954483@qq.com
contact number:13313705507
contacts：HE
The data recorded during a fault sequence is called a fault record (FR). The slave
stores the five latest fault records. When a sixth record is stored, the oldest record is
deleted.
To read a fault record:
1. Write a preset single register command (function 06) to HR601 using a selection
code as data value.
2. Read the selected fault record (function 04) from HR601, register count 28.
Selection code 1: the master reads the oldest unread record
Status register 3 (HR403) informs whether there are unread fault records (see
Fig. 5.1.15.1.-2). If there is one or several unread fault records, the master can read
the contents using selection code 1.
The fault record contains a sequence number which makes it possible for the master
to determine whether one or several unread fault records have been deleted due to
overflow. The master compares the sequence number to that of the previously read
fault record.
The slave keeps track of which fault record is currently the oldest unread. The
master can continue reading fault records for as long as Status register 3 indicates
that there are unread records.
* Special case 1: If there are no unread fault records, the contents of the last read
record is returned. If the buffer is empty, however, the registers contain only
zeros. This is the only time when sequence number zero appears.
* Special case 2: If the master tries to read the next unread fault record without
entering selection code 1 again, the contents of the last read record will be
returned

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