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The I/O module DM80Ex is used for the

connection of NAMUR sensors (DIN EN 60

60947-5-6) and actuators. When wire-break

or short-circuit monitoring are activated, mechanical contacts can only be connected with

a corresponding resistor circuitry (WM1, Ident

no. 0912101).

The module features protection class Ex ib IIC

and can be mounted in zone 1 in combination

with excom?. The explosion protection category of inputs/outputs is Ex ia IIC.

When connecting the field devices, care has

to be taken that all outputs are on the same

potential.

Input and output mode can be adjusted via

the PROFIBUS-DP master. The following

parameters can be adjusted: switching behaviour, switch-on delay, default value, wirebreak and short circuit monitoring.

The user can furthermore determine whether

an input or an output should be provided at

the connecting point. The following configurations are possible: 8 inputs/0 outputs; 6 inputs/2 outputs up to 0 inputs/8 outputs (GSDfile, Mode 2). This way, optimal adaptation to

the corresponding application environment is

guaranteed.

■ Input/output module for NAMUR sensors

and actuators