English – Burkert Type 8642 User Manual

Page 23

22 - 8642

english

The “automatic” modes which are used in this profile are

Auto and RCas; Ma-

nual mode :

Man. In the O/S mode, the normal algorithm is not carried out, and

any alarm present will be reset.

2. Current
This is the current mode of the component, which can be different from the
target mode, which is based on the operational conditions.

The layout of a function block or

transducer block is checked by the Modus

parameter. The 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 allowed
by the

allowed mode parameter are limited by target. The modes are

determined by the bit sequence in the following manner:

Out of Service (O/S)

The block is not being evaluated. The output is
maintained at last value or, in the case of output
class function blocks, the output may be main-
tained at an assigned

fail-safe value, last value

or configured

fail-safe value.

Manual 1 (Man)

The block

output is directly set by the operator

through an interface device.

Automatic (Auto)

For forming the

output value, the parameter

invert is used.

Remote Cascade

The block

setpoint is being set by a Control

(RCas)

Application running on an interface
device through the remote cascade parameter
RCAS_IN.

Bit

Mode

out of operation (O/S) - MSB

manual (Man)

automatic (Auto)

remote - Cascade (RCas)