Communication interface with Ex i system supply

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CPU & power modules

Bus connection and power supply for flexible use
The CPU modules for the IS1+ system support the most common communication protocols, such as PROFIBUS DP, PROFINET, Modbus TCP and EtherNet/IP. Copper cables or fiber optic are used for communication, and system redundancy can also be added.
The power module provides an intrinsically safe power supply and, like any other module, can be connected and disconnected in hazardous locations.

IS1+ CPU & power modules supply up to 16 I/O modules with intrinsically safe power and connect to all common automation systems.
RS485, or RS485-IS in Zone 1 and Class I, Div.1, is used for communicating via PROFIBUS DP and Modbus RTU. Fast, interference-free "Ex op is" 100 MBit/s fiber optic are used for the Industrial Ethernet connection via Modbus TCP, EtherNet/IP and PROFINET. System redundancy or integration into an optical ring to increase availability can also be supported, depending on the protocol.
A wide range of diagnostics is available either via a separate service bus or via the relevant process bus. These diagnostics can be easily integrated into plant asset management systems by an effective DTM.

  • Data transmission for PROFIBUS DP V0/V1 HART, Modbus RTU, Industrial Ethernet with Modbus TCP, EtherNet/IP, PROFINET
  • Wide range of diagnostics and HART transparency for integration into plant asset management systems via service bus and DTM
  • "Ex i" intrinsically safe or "Ex op is" inherently safe fieldbus interface for flexible use in hazardous locations

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Class1 Division and Zone
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Protocols

12 Series (30 Products)

Ex CPU & power module for Zone 1/Div. 1 Series 9440/22 R. STAHL

CPU & power module for Zone 1/Div. 1 Series 9440/22

  • Suitable for Ex i Profibus DP V0/V1 HART, Modbus RTU
  • Supports system redundancy and optical rings
  • CPM in Zone 1 can be replaced without having to disconnect the power supply (i.e. hot-swapped)
  • Integration in plant asset management systems via ServiceBus and FDT/DTM
  • Integrated Ex i power supply for up to 8 I/O modules
Ex Socket for CPU & power module Series 9490 R. STAHL

Socket for CPU & power module Series 9490

  • For simple or redundant installation of the 9440/22 CPM in Zone 1
  • LCD for local display of diagnostics data, input and output values
  • Passive design with high availability
Ex CPU & power module for Zone 2/Div. 2 Series 9440/15 R. STAHL

CPU & power module for Zone 2/Div. 2 Series 9440/15

  • Suitable for Profibus DP V0/V1 HART, Modbus RTU
  • Supports system redundancy and optical rings
  • Integration in plant asset management systems via ServiceBus and FDT/DTM
Ex Socket for Ethernet CPU & power module Series 9492 R. STAHL

Socket for Ethernet CPU & power module Series 9492

  • For simple or redundant installation of the 9441/12 CPU & power module in Zone 1
  • LCD for local display of diagnostics data, input and output values
  • Passive design with high availability
Ex CPU module for Zone 1 Series 9442 R. STAHL

CPU module for Zone 1 Series 9442

  • Supports PROFIBUS DP, PROFINET, Modbus TCP+RTU and EtherNet/IPTM; incl. HART transmission and redundancy
  • RS485-IS (max. 1.5 Mbps) and
    Ethernet 100BASE-TX (max. 100 Mbps) interfaces
  • Extensive diagnostics based on NE 107
  • Supports FDT/DTM, OPC UA and web servers for integration in asset management systems
  • Extended ambient temperature range from -40 to +75 °C
Ex CPU module for Zone 2 Series 9442 R. STAHL

CPU module for Zone 2 Series 9442

  • Supports PROFIBUS DP, PROFINET, Modbus TCP+RTU and EtherNet/IPTM; incl. HART transmission and redundancy
  • RS-485 (max. 12 Mbps) and
    Ethernet 100BASE-TX (max. 100 Mbps) interfaces
  • Extensive diagnostics based on NE 107
  • Supports FDT/DTM, OPC UA and web servers for integration in asset management systems
  • Extended ambient temperature range from -40 to +75 °C
Ex Power module for Zone 1 Series 9445 R. STAHL

Power module for Zone 1 Series 9445

  • 24 V DC supply module for IS1+ CPU modules and 16 I/O modules
  • Redundancy of the power module with load sharing possible
  • Integrated polarity reversal protection
  • Error messages according to NE 107 (overload, overtemperature, maintenance required)
  • Supports FDT/DTM, OPC UA and web servers for integration in asset management systems
  • Extended ambient temperature range from -40 to +75 °C
Ex Power module for Zone 2 Series 9445 R. STAHL

Power module for Zone 2 Series 9445

  • 24 V DC supply module for IS1+ CPU modules and 16 I/O modules
  • Redundancy of the power module with load sharing possible
  • Integrated polarity reversal protection
  • Error messages according to NE 107 (overload, overtemperature, maintenance required)
  • Supports FDT/DTM, OPC UA and web servers for integration in asset management systems
  • Extended ambient temperature range from -40 to +75 °C
Ex Socket for CPU & power module Zone 2 Series 9496 R. STAHL

Socket for CPU & power module Zone 1 Series 9496

  • For mounting 9442 IS1+ CPU modules and 9445 power modules
  • Selector switch for configuring the communication protocol and the station address
  • Redundancy for CPU or power module
  • Mounting on DIN rail or on mounting plate itself
  • Special aluminium profile provides increased stability and heat dissipation
  • Extended ambient temperature range from -40 to +75 °C when
    installed on mounting plate
  • Compatible with 9494 IS1+ BusRail
Ex Socket for CPU & power module Zone 2 Series 9496 R. STAHL

Socket for CPU & power module Zone 2 Series 9496

  • For mounting 9442 IS1+ CPU modules and 9445 power modules
  • Selector switch for configuring the communication protocol and the station address
  • Redundancy for CPU or power module
  • Mounting on DIN rail or on mounting plate itself
  • Special aluminium profile provides increased stability and heat dissipation
  • Extended ambient temperature range from -40 to +75 °C when
    installed on mounting plate
  • Compatible with 9494 IS1+ BusRail
Ex Ethernet CPU module for Zone 1/Div. 1 Series 9441/12 R. STAHL

Ethernet CPU module for Zone 1/Div. 1 Series 9441/12

  • Suitable for "op is" 100 Mbps Ethernet with PROFINET, Modbus TCP or EtherNet/IPTM
  • Redundant connection possible with Modbus TCP
  • CPU in Zone 1 can be replaced without having to disconnect the power supply (i.e. hot-swapped)
Ex Ethernet power module for Zone 1/Div. 1 Series 9444/12 R. STAHL

Ethernet power module for Zone 1/Div. 1 Series 9444/12

  • For supply the IS1+ system with intrinsically safe power
  • For up to eight IS1+ I/O modules and connected field devices
  • Power module in Zone 1 can be replaced without having to disconnect the power supply (i.e. hot-swapped)
  • Can be used in conjunction with the 9441/12 CPU and the 9492/12 socket