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The IS1 remote I/O system for hazardous areas can communicate via Modbus TCP and thereby qualifies for Industrial Ethernet environments. A DTM makes IS1 systems compatible with standard software packages such as Pactware, Fieldcare, Fieldmate etc. The Ethernet-adapted IS1 versionfeatures a modified CPU & Power Module (IS1 CPM). It now consists oftwo separate components: a Communication Unit (CPU) and a Power Module (PM). Both components remain hot swappable, i.e. they can be exchanged separately during operation in zone 1. IS1 for Ethernet can be operated with redundant Ethernet networks and standard Ethernet networks featuring power supply redundancy for the CPU module. In case of a linebreakdown, the system can switch to the other line within 200ms. Thesystem is de-signed for use in zone 1/division 1. Fiber optic cables are used for the Ethernet line to allow larger distances. The signal complies with the "op is" type of protection as specified in the IEC60079-28 standard. A "Ex op is switch" for Ethernet structures, is also available.
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