Burkert Type 8643 - Manual (Page 30)

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Configuring the network
out of service (o/s) The block was not specified. If the initial value was specified during a certain
fail-safe value, the last value or the configured fail-safe value is retained.
manual l (man) The output block is specified directly by the user by means of an interface
command.
automatic (auto) The Invert parameter is used to form the output value.
remote Cascade
(rCas) The set-point block was set by a control application which works on an interface
device via the remote cascade parameter RCAS_IN.
The version of a function block or transducer block is checked by the mode parameter. Values of the subindex
mode are defined as follows:
1. Target
This is the mode which is requested by the user. The values which are authorized by parameters of the permitted
mode, are limited for target. The modes are specified by the bit string in the following manner:
Bit mode
7 Out of service (O/S) - MSB
4 Manual (Man)
3 Automatic (Auto)
1 Remote - Cascade (RCas)
The “automatic” modes which are used in this profile are Auto and RCas; manual mode: Man. In the O/S mode
the normal algorithm is not implemented and each pending alarm is deleted.
2. Current
This is the present mode of the module which may differ from the target mode which is based on operating
conditions.
Alarm sum structure
This data structure consists of data which combines the 16 alarms.
Data type Alarm sum
Key attributes Index = 42
Attributes Number of elements =4
Attributes List of elements (indicated below)
E name of the element Data type (index) size (byte)
1 current Octet String - (10) 2
2 not acknowledged Octet String - (10) 2
3 not signalled Octet String - (10) 2
4 switched off Octet String - (10) 2
List of elements and the sum structure Table 5:
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Type 8643 PA