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Festo CPV-CO2 Valve Terminal

31006709 2/2009 21

Festo CPV-CO2 (With Inputs) Functional Description

Overview

When you open the CPV-CO2 (With Inputs) module in the Module Editor in the

Advantys configuration software, you may define the error mode and error value—

i.e., the fallback mode and fallback state—of each actuator output.

Output Error Modes

When communications are lost between the module and the fieldbus master, the

module’s output channels go to a predefined state known as the error value output.

You may configure the error value output for each channel individually. An error

value output is accomplished in 2 steps:

 first by configuring the error (or fallback) mode for each channel

 then, if necessary, by configuring the error value (or fallback state) for the channel

All output channels have an error mode—either predefined state or hold last value.

When a channel has predefined state as its error mode, it may be configured with

an error value, which can be any value in the valid range. When a channel has hold

last value as its error mode, the channel will always remain in its last known state if

communication is lost. It cannot be configured with a predefined error value.

Output error modes are configured at the channel level. By default, the value for

each channel is 1, indicating a predefined state on each channel. If you set a

channel’s output error mode value to 0, the output error mode becomes hold last

value.

Output Error Values

When an output channel’s output error mode is a predefined state, you may set a

value of either 0 or 1 as the value that the output will go to if communication is lost.

The default output error value on all channels is 0.

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Schneider Electric Splitter Boxes Información técnica Pagina 21