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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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12 Series (32 Products)

Explosion Protection
Ex CPU & Power Module for Zone 1 / Class I, Div. 1 Series 9440/22 R. STAHL

CPU & Power Module for Zone 1 / Class I, Div. 1 Series 9440/22

  • Suitable for I.S. PROFIBUS DP V0/V1 HART, Modbus RTU
  • Supporting system redundancy and optical rings
  • CPM in Zone 1 and Class I, Div. 1 can be hot swapped
  • Integration in plant asset management systems via ServiceBus and FDT/DTM
  • Integrated I.S. power supply for up to 8 I/O modules
Explosion Protection
Ex Socket for CPU and Power Module for Zone 1 / Class I, Div. 1 Series 9490 R. STAHL

Socket for CPU and Power Module Series 9490

  • For single or redundant installation of the 9440/22 series CPM in Zone 1 and Class I, Div.1
  • LCD for locally displaying diagnostic data, input and output values
  • Passive design boasting high availability
Explosion Protection
Primary Image 9440/15

CPU & Power Module for Zone 2 / CIass I, Div. 2 Series 9440/15

  • Suitable for Modbus RTU
  • Supporting system redundancy and optical rings
  • Integration in plant asset management systems via ServiceBus and FDT/DTM
Explosion Protection
Ex Socket for Ethernet CPU and Power Module for Zone 1 / Class I, Div. 1 Series 9492 R. STAHL

Socket for Ethernet CPU and Power Module for Zone 1 / Class I, Div. 1 Series 9492

  • For single or redundant installation of the 9441/12 series CPU & power module in Zone 1 and Class I, Div.1
  • LCD for locally displaying diagnostic data, input and output values
  • Passive design boasting high availability
09041T00
Primary Image: CPU Module for Zone 1 | 9445/32

CPU Module for Zone 1 Series 9442

  • Support for PROFIBUS DP, PROFINET, Modbus TCP and EtherNet/IPTM; incl. HART transmission and redundancy
  • RS485-IS interfaces (max. 1.5 Mbit/s) and Ethernet (max. 100 Mbit/s)
  • Comprehensive diagnostics based on NE 107
  • Support of FDT/ DTM and web server for integration in asset management systems
  • Enhanced ambient temperature range from -40 °C to +75 °C (-40 °F to +167 °F)
Explosion Protection
Ex CPU Module for Zone 2 / Class I, Div.2 Series 9442 R. STAHL

CPU Module for Zone 2 / Class I, Div.2 Series 9442

  • Support for PROFIBUS DP, PROFINET, Modbus TCP and EtherNet/IPTM; incl. HART transmission and redundancy
  • RS485 interfaces (max. 12 Mbit/s) and Ethernet (max. 100 Mbit/s)
  • Comprehensive diagnostics based on NE 107
  • Support of FDT/DTM and web server for integration in asset management systems
  • Enhanced ambient temperature range from -40 °C to +75 °C (-40 °F to +167 °F)
Explosion Protection
Primary Image: CPU Module for Zone 1 | 9442/32

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 in accordance with NE 107 (overload, excess temperature, maintenance requirements)
  • Support of FDT/ DTM and Webserver for integration in asset management systems
  • Extended ambient temperature range -40 °C to +75 °C (-40 °F to +167 °F)
Explosion Protection
ex-automation-systemloesungen-cpu-modul-rstahl

Power Module for Zone 2 / Class I, Div.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 in accordance with NE 107 (overload, excess temperature, maintenance requirements)
  • Support of FDT/DTM and Webserver for integration in asset management systems
  • Extended ambient temperature range -40 °C to +75 °C (-40 °F to +167 °F)
Explosion Protection
Primary Image: Sockel for IS1+, CPM & Power Module_9496/35

Socket for CPU and Power Module for Zone 1 Series 9496

  • For installing IS1+ 9442 CPU modules and power modules 9445
  • Selector switch for configuring the communication protocol and the station address
  • Redundancy for CPU and power module
  • Mounting on DIN rail or right on mounting plate
  • Special aluminium profile provides stability and heat dissipation
  • Extended ambient temperature range of -40 to +75 °C (-40° to 167° F) when installed on mounting plate
  • Compatible with IS1+ BusRail 9494
Explosion Protection
Primary Image: Sockel for IS1+, CPM & Power Module_9496/35

Socket for CPU and Power Module for Zone 2 / Class I, Div. 2 Series 9496

  • For installing IS1+ 9442 CPU modules and power modules 9445
  • Selector switch for configuring the communication protocol and the station address
  • Redundancy for CPU and power module
  • Mounting on DIN rail or right on mounting plate
  • Special aluminium profile provides stability and heat dissipation
  • Extended ambient temperature range of -40 to +75 °C (-40° to 167° F) when installed on mounting plate
  • Compatible with IS1+ BusRail 9494
Explosion Protection
Primary Image: Ethernet CPU Zone 1_9441/12

Ethernet CPU Module for Zone 1 / Class I, Div. 1 Series 9441/12

  • Suitable for “op is” 100 Mbit/s Ethernet with PROFINET, Modbus TCP or EtherNet/IPTM
  • Redundant operation with Modbus TCP possible
  • CPU can be hot swapped in Zone 1 and Class I, Div. 1
Explosion Protection
Primary Image: Ethernet Power Zone 1_9441/12

Ethernet Power Module for Zone 1 / Class I, Div. 1 Series 9444/12

  • For intrinsically safe IS1+ system supply
  • For up to eight IS1+ I/O modules and connected field devices
  • Power module hot swap in Zone 1 and Class I, Div. 1
  • Use together with 9441/12 CPU and 9492/12 socket

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