wtw DIQ/S 282, Operating Manual, Page: 15 / 186

DIQ/S 28X Overview
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1.3.3 Fieldbus interface (DIQ/S 28X -MOD, -PR, -EF)
The following variants of the DIQ/S 28X have a fieldbus interface:
1.4 Behaviour of the system to a power failure
 The system configuration is permanently retained. It consists of the following
settings:
– Sensor settings
– Settings and links of the relay outputs
– Settings and links of the current outputs
– System settings (display language, air pressure/altitude, passwords etc.)
 Linked relay outputs switch to the non active condition (open).
 Linked current outputs switch to the non active condition (0 mA).
 A restart is carried out automatically when the power returns. The continues
working with the settings of the time prior to the power failure.
If the power failure lasted several hours the system clock has to be reset.
DIQ/S 28X variant Fieldbus connection
DIQ/S 28XPR PROFIBUS DP
DIQ/S 28X-MOD Modbus RTU/RS 485
DIQ/S 28X[-CRx]-EF Ethernet fieldbuses
(EtherNet/IP
™
, Profinet, Modbus TCP)